Because of its popularity, tankless water heaters are now being used by most people due to its efficiency and energy-saving features. As the name implies, users will no longer have to deal with their traditional water heating process wherein they have to store hot water in their tanks. Old models use more energy as it reheats the water now and then while tankless water heaters will create hot water on demand.

Tankless water heaters work very simply. The water that goes through the pipes is heated and then it’s ready for use. However, there are two most common types of tankless heaters that one may consider before buying.

Condensing vs Non-Condensing Tankless Water Heaters

Condensing vs Non-Condensing Tankless Water Heaters

[thrive_text_block color=”note” headline=”Condensing Tankless Water Heater”]

Condensing Tankless Water HeaterThe process of heating water through combustion and gas burner takes place as you turn on the switch and prepare to use your hot water supply. As exhaust gasses are created, it can also help the tankless water heater in heating the water inside the unit as it also produces extra heat. This is the reason why condensing water heaters are efficient compared to other types.

Condensing tankless water heaters has a second heat exchanger that is responsible for reusing exhaust gas which heats the water. This means that before the water goes into the main heat exchanger, it is already exposed to these warm gasses that help cold water achieve their desired temperature.

As it extracts heat from exhaust gasses, it will also produce vapor or steam which becomes condensation as it cools down. As the exhaust gasses are not extremely hot compared to non-condensing type, around 100 F, the ventilation used for condensing tankless water heaters are not as expensive compared to the other type.

However, due to condensation, this may also lead to corrosion. Because of this, it is also important to choose materials that may prevent this from taking place, stainless steel alloys are recommended.

[/thrive_text_block] [thrive_text_block color=”note” headline=”Non-Condensing Tankless Water Heater”]

Non-Condensing Tankless Water HeaterCompared to condensing water heaters that vents exhaust gasses inside the unit, non-condensing will immediately vent the exhaust gasses outside.

This type of tankless water heater which heats the water by the gas burner and since the gasses are vented right away. It loses about 20% of the heat that helps the water become hotter.

Non-condensing tankless water heaters also require more specific venting materials as the temperature may reach 300 F. The usual PVC type of vents that can be used with the condensing type mat not be able to handle the heat that it produces. With that said, it would cost more to install a venting unit for this particular type of tankless water heater.

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In all consideration, most would say that condensing tankless heater are more effective when it comes to heating your water supply. However, it should also be taken into consideration that there are times that this type would not condensate due to air temperature and it’s surrounding. Nevertheless, a non-condensing type is also effective; users would only have to be ready for some additional expenses that it may require when it comes to its venting units.

Relatively, non-condensing tankless water heaters are less expensive compared to the other type. On the other hand, condensing tankless water heaters may reduce the expenses for making it able to run overall. It is already established that condensing type of water heater is more efficient that the non-condensing type for about 10 to 15 percent. But other factors can be considered. Otherwise, there wouldn’t be two types available in the market.

Most non-condensing types are a bit smaller than the condensing type. It would also require an indoor combustion air but only requires minimal maintenance done by professionals.  For condensing tankless water heaters, it does not need any indoor combustion air but will require annual maintenance done which could vary depending on the type of water in your area.

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In any home equipment that we are planning to buy, it is necessary to ensure that we will be able to conserve energy usage while still being able to maximize its functionality. Switching to a tankless water heater will unquestionably require you to make a bigger investment which could double or triple what you spent with your traditional water heater. However, thinking about it, it will save a lot on your monthly bills as well as be able to enjoy more hot showers for the many years to come.

Aside from choosing the brand, size and some other features, it is always best to have a professional check your house and be able to anticipate other repairs or upgrades that you might need prior to installation. Not only it gives you more time to budget the amount needed but also give you peace of mind that your house is ready and that it is safe for everybody.


tankless water heater brandsInstalling tankless water heaters has a huge number of advantages, including reducing energy bills and saving water. The reason for this is that tankless water heaters only draw energy whenever hot water is needed and for only a short period. Also, they only heat a relatively small volume of water compared to traditional heaters.

They are also associated with a long useful life because unlike traditional heaters; tankless heaters are run less frequently. For people whose homes lack enough space, tankless water heaters are ideal because they are small in size.

Because of their many advantages, tankless water heaters are certainly a smart choice for anybody. However, not all of them are the same; some brands give better performance and are also more durable.

For this reason, there are some factors that you need to consider when looking for an ideal brand for your home.

How to Choose the Best Tankless Water Heater Brands

As a matter of fact, when it comes to buying a tankless water heater, you are spoilt for choice because of the availability of numerous different brands on the market today.

For this reason, it is important to be very particular about what you are looking for in a tankless water heater to make an informed choice. Some of the most important factors to consider when choosing the best model that suits your needs include:

# Fuel Type: Tankless water heaters use three types of energy sources. You can choose a model that uses propane, natural gas, or electric power.

However, before you pick your choice, get to know the merits of each type of brand. This is especially important if you have more than one energy sources at home. For instance, if you have both electric and gas sources, you need to consider which brand suits you best. Electric models are cheaper to maintain compared to gas models. They are also more expensive than gas and are safer.

For propane and gas models, yearly inspections are necessary to enhance safety. They are also cheaper than electric models. Essentially, you need to weigh all of these factors before coming up with a conclusive answer as to which brand is best for you.

Also, it is also most ideal to buy a brand that uses the same type of energy source that you have at home. For instance, if electricity is the only source of energy, it makes economic sense to buy an electric tankless water heater instead of gas or propane one.

# Size: Size is an important consideration when buying a tankless water heater. The ideal size will depend on your specific needs. If you want a tankless water heater for use with a single faucet, you should ideally buy a smaller model with a flow rate of approximately half a gallon per minute.

If your intention is to supply hot water to the whole house, then the best option is to buy a unit that has the ability to run multiple applications simultaneously. A single whole house unit is available on the market and is certainly most ideal for this purpose.

# Flow Rate: Another important factor to consider is the flow rate of the tankless water heater. It helps determine how much hot water the tankless heater can provide at one time. If you intend to buy a unit that can supply hot water to the whole house, you need to buy a brand with a high Gallon per Minute Rate (GPM).Different brands of single whole-house units with a high GPM are available and are ideal for this purpose.

The important thing is to buy a brand that is highly rated. Alternatively, if you need a tankless water heater for your sink, garage, shower, or any other separated structure, the best option is to buy a brand that has a low GPM. This is because you don’t need a large volume of water at one time in such locations.

# Energy Efficiency: Before you buy a particular brand of tankless water heater, it is important to establish its energy efficiency rating. This is because a brand that has a high Energy Factor (EF) rating is more energy efficient. Essentially, this type of brand will enable you to spend less on energy bills. The EF rating is used to measure the efficiency of a particular brand when it comes to converting energy into heat.

# Warranty: As a matter of fact, different brands of tankless water heaters come with different types of warranties. Ideally, it is important to go for a unit that has a manufacturer’s warranty on both parts and workmanship. It is also important to understand the complete scope of the manufacturer’s warranty on the particular brand you are interested in so that you can make an informed choice.

# Availability of Local Service Providers: This is also another important factor to consider when selecting a tankless water heater. Try to establish whether or not the particular brand you are intending to buy can be serviced locally in case of a breakdown. It would be unreasonable to buy a brand that will cost you a fortune to repair simply because you cannot find a local service provider.

# Reliability: When choosing a tankless water heater, it is important to read online reviews in order to establish the ratings of specific brands. User reviews help guide you when it comes to selecting the best performing brand. This is because they are always highly rated by people who have bought and used them. Ideally, go for a brand that has a rating of 4.5 to 5 stars because you are not likely to go wrong.

Location: You will also need to consider where you want to install your tankless water heater. There are both outdoor and indoor units on the market. For this reason, you need to buy a brand that best suits your needs. In addition, outdoor units are less expensive to install.

# Maintenance: Tankless water heaters are prone to mineral scale build-up, which, if not cleaned up, will interfere with the proper performance of the unit. For this reason, tankless water heaters require annual maintenance for them to perform optimally and also have a longer useful life. However, some brands are difficult to clean because of their design and other factors. Therefore, it’s important to do proper research and buy a brand that is easy to clean and maintain.


These are some of the most important factors that you need to put into consideration when choosing the best tankless water heater for your home.

Electric Tankless Water HeaterAre you concerned about the electricity bills that you have to pay at the end of each month? Well, if you are like most other people or me, you will be concerned. Cutting the bills associated with water heating can be one the biggest savings that you ever make as far as electricity bills are concerned.

One of the ways to do that is to replace your conventional water heating system. If the bills do not faze you, then you will be concerned about convenience or save our planet by using lesser energy. So what exactly is this tankless water heating system that has got so much to offer?

All about the tankless hot water system

This is a water heating system that heats up the water as you need it hence the name ‘on-demand’ or ‘instant water heater.’ An electric element or gas burner heats up the water as it passes through it depending on whether you have an electric or gas heating system.

Since the water heats as it passes through the system, you do not need to have storage tanks for the heated water. All you need to do is to turn on your tap or shower. It can heat up about 7.6-15.2 liters of water per minute.

This system, as with all other electric tankless water heating systems, is 100% efficient at converting electrical energy to heat energy. Various studies have shown that the instant water heating system saves you about 20-30% of electricity bills each month.

How to Cut Your Electric Bill Using a Tankless Water Heater

How to Cut Your Electric Bill Using a Tankless Water Heater

[thrive_text_block color=”note” headline=”How exactly does the tankless water heater save you money?”] To answer this question, we will have to compare this heating system with the most commonly used system, the tank heating system. It is very probable that you are currently using a tank system in your household.

This is the system where you have to switch on the water heater switch then wait for the water to heat up. The hot water will then be stored in a cylinder which you will be drawing from as you need the water.

The difference between how these two systems operate is what makes all the difference in your electricity bill. Let me point out these differences for you.

  • The tankless system is instant while the tank system takes some time to heat up.
  • There is storage of water in the tank system while water is not stored in the tankless system.
  • The heating element is in the pipes in the tankless system while it is in the tank in the conventional tank system.
[/thrive_text_block] [thrive_text_block color=”note” headline=”How do these differences translate to lower electricity bills for you?”]

The main cost saving will have to come from the fact that there is no storage with the on-demand system. If I can juggle up your memory a little bit, you must have learned in science that heat transfer must occur when two bodies are not at the same temperature.

This also applies to the heated water that is stored in the cylinder, and its surroundings. Once the hot water is stored in the cylinder, it will start losing heat to its cooler surroundings.

By surroundings, I mean the body of the insulated cylinder, the pipework and even the air that is around the cylinder. I am sure that you have noticed that the air around the storage cylinder often feels warmer.

The loss of heat sometimes goes on till the hot water that is stored in the cylinder cools down. This heat that is lost to the surroundings is not useful to you yet you have to pay for it since your electricity was used in heating up the water.

The fact that the heating element is in the tank is also a cost difference. If you leave the switch on for the tank system, it will try to deal with the standby heat loss. What happens is that each time the temperature goes

This will continue for as long as the switch is on and the heat loss continues. You do not want to imagine what would happen if you forget to turn off the heater and go away for a few days.

On the other hand, this is not possible with the tankless system since it only heats up the water that is passing through it. That means that your faucet or shower must be on for the heating to take place.

You will agree with me that it is easier to forget to switch off a switch than to turn off a shower or a faucet. Therefore, you do not run the risk of unintentionally higher bills with the tankless system.

[/thrive_text_block] [thrive_text_block color=”note” headline=”Other ways to cut the bills even further”]

Once you have decided to replace your tank system with the tankless one, you can employ even more methods to reduce the bills even further. You can do this by:

  • Installing fixtures that have low flow rates such as aerated faucets and laminar shower heads.
  • Fixing leaks
  • Using appliances that are energy efficient.
There you have it, folks. You do not have to pay high electricity bills anymore. All you have to do is replace your conventional hot water tank system with the tankless water heater system. Within a few months, you will see a drop of about 20-30% of the bills that you are used to paying. Make the change today and thank me later.


How to Repair a Tankless Water Heater 2Got a cranky tankless water heater that doesn’t heat the water enough or doesn’t heat at all? Or is the burner too noisy or doesn’t get ignited? There is no need to worry as there is a solution to every problem and you might not even have to spend a penny to get the heater working smoothly.

However, trying to repair the heater itself may cause an unforeseen accident, so it is always better to study the manufacturer’s manual before starting with any repairs, as a precautionary measure.

Tankless water heaters come in two variants:

  1. Gas Tankless Water Heater
  2. Electric Tankless Water Heater

Also as the name means, there is no tank to store the water while it gets heated. Instead, the water is continuously running from the main source while it gets heated.

How to Repair a Tankless Water Heater

How to Repair a Tankless Water Heater

[thrive_text_block color=”blue” headline=”Common Solutions”] Check the water supply and make sure water is running. Another thing to check is the gas or power supply and see whether the fuel is properly supplied in sufficient amount.

Check the plumbing if the water is not available from the main source and make sure that any material or object does not choke the main pipeline. In case of extreme cold and if any part of the plumbing is outside, the water might have frozen midway in the pipeline.

Tankless water heaters have another characteristic which might prove to be the main factor for its lack of proper operation; the plumbing inside the heater is narrow which allows only a small flow of water so that it can be heated simultaneously. The problem may persist if hard water is used which contains many salts which clog up the pipeline obstructing the proper flow of water. So it is better to use soft water when it is available.


How to Repair a Gas Tankless Water Heater

Gas Tankless Water HeaterWith a gas water heater the most common problem is that the burner is clogged, resulting in partial heating of the burner or sometimes there is no flame at all, and the entire burner remains unheated.

Mainly the internal orifices for the water flow are clogged due to the use of hard water. In this case, the internal plumbing must be flushed every few months to maintain the smooth flow of water.

You can get a professional plumber to get the pipes flushed, or you can do it yourself if you have the following devices:

Submersible pump, extra bucket, a couple of hoses, and 2 gallons white vinegar. Now follow the step by step process:

  • Close the water valves for incoming and outgoing pipelines.
  • Shut down the supply of gas so as to avoid any accident.
  • Get a bucket full of vinegar and put the suction pickup of a submersible pump in it. Then get a hose from the bucket to the pressure-relief valve and another one from the submersible pump to the inlet of a tankless water heater.
  • Switch on the pump so that the vinegar will flow through the internal plumbing of the heater dissolving the salts deposited on the walls of the apertures.
  • Then clean the screen filter of the inbuilt filter by removing it from near the water inlet and then screw it back on.
  • Finally run the pump again but this time to pass some fresh water through the internal piping to clean it one last time before using it again to heat the water.

How to Repair an Electric Tankless Water Heater

Electric Tankless Water HeaterIn case of a tankless water heater that runs on electricity, probably the heating element is faulty and needs to be replaced for which the process is as below:

  • Before doing anything, go through the help manual to find out the location of the heating element.
  • Now switch off the main power to the heater and also shut off the water from its source.
  • Drain out all the remaining water by opening the hot water tap before performing any operation.
  • Take out the plate from the bottom of the heater and after the water’s draining out is finished; replace the heating chamber plate where it was.
  • Now carefully separate the wires attached to the main heating unit and then use a thick cloth to prevent the water from running through the main unit.
  • Unscrew the nut holding the heating element in its position using an adjustable wrench thereby detaching it from the main unit.
  • Get it replaced by an element of the same capacity and also be careful of the O-ring being appropriately set in its position.
  • Now you are ready to go. Turn the water and the power on and check whether heating is done properly or not.
While it is certainly important to check and perform regular maintenance of the water heater, there is no reason to panic in certain conditions such as the water starting to get heated after some time which is a usual process as it takes some time to get the heat transferred to the water.

Also, the spinning of the fan even after the switch is turned off is normal as the fan is used to shove out the exhaust gasses through the ventilators.

Tankless water heaters tend to require less maintenance than storage systems, but they do need regular cleaning. There is no set time frame for maintenance, as it is dependent of the hardness of the water. Systems in areas of hard water will require cleaning more often than those in soft water areas because the mineral deposits build up quicker.

This generally takes longer in a tankless system because it pushes the minerals through the system, rather than allowing a build up at the bottom of a tank. Most tankless water heaters will have an alert when they require maintenance.

[thrive_text_block color=”note” headline=”How to Clean a Tankless Water Heater”]

How to Clean a Tankless Water Heater

Step One: Shut off the power supply. If the tankless water heater is gas, then shut off the gas supply. If it is electric, turn off the circuit breaker. Gather all the supplies that will be needed. You will need:

  • Five-gallon bucket
  • Two stainless steel washing machine hoses
  • A submersible pump
  • Four gallons of white vinegar, (food grade)

If you don’t have these items, they can be purchased in a kit.

Step Two: Shut off the three water valves. One is for cold water into the system and is usually blue, one is for hot water out of the system and is usually red, and one is for the water supply to the home and may be yellow. These can be handles or knobs, depending on the make and model of your tankless water heater.

If they are handles then when they are in line with the pipe, the water is turned on. When they are perpendicular to the pipe, the water is turned off. If you haven’t done so, unplug the unit from the wall socket.

Step Three: Take off the purge port valve caps from the purge valves on the hot and cold water. They have small handles this needs to be done slowly to relieve any build up of pressure and to avoid any hot water spillage. The caps need to be handled with care to make sure the rubber washer sealing discs remain in place.

Step Four: Attach the housing lines to the valves to direct the water into the bucket. Take extra care when attaching the hose to the hot water. Open the purge ports to allow the water to flow into the bucket. The hot water side will drain much faster and with more water than the cold water side, so you should open the hot side slowly and let it trickle out first to test the temperature, before opening it fully.

Step Five: When the water has finished draining, leave the hoses in place, and empty the bucket. Fill the bucket with four gallons of food grade white vinegar. Vinegar is a good non-chemical cleaning solution. You shouldn’t use chemicals or other vinegar for cleaning the water system as they can affect your health and the health of the water system.

Once you have filled the bucket with vinegar, attach the end of the hoses to the submersible pump and place it into the vinegar before plugging it in or turning it on. When you turn it on, it will start to pump the vinegar through the system. Leave it to run for around forty-five to ninety minutes.

Step Six: While the pump is pumping the vinegar, remove the face plate of the heater, and remove the air filter. Rinse it and dry it off, and replace it. Screw the faceplate back into place.

Step Seven: When the vinegar has finished pumping, unplug the pump, and remove it from the bucket of vinegar. Empty the vinegar and place the bucket under the water heater. Remove the hose from the cold water side and screw the cap back in place. Open the water valve and let 4 to 5 gallons of water flow through the system. Close the valve. Unscrew the water filters and rinse them before putting them back into place.

Step Eight: Attach the caps and put everything back in place. Once everything is securely capped, turn on the cold water valve, and listen for water. Then turn on the hot water, and finally the gas and central circulation valve. Then you can plug the system back in and run as normal.



These steps may vary slightly from brand to brand or model to model. Read the manufacturer’s booklet for your specific make and model. Some models include hoses for cleaning, others might not. If you need to, you can buy a complete kit that will have all the items needed to clean a tankless water heater.

You can buy food grade white vinegar in bulk online or in certain stores. Never use any other kind of vinegar as it can damage or stain the system, and you shouldn’t use chemicals as they can remain in the water and harm your health.

If you are looking for a new water heater for your house, you need to understand the type of water heaters available. First is the tank water heater or the traditional water heater. Second is the modern water heater also known as tankless water heater.

What’s a Traditional Water Heater?

A Tank water heater preheats and stores around 40 gallons of water in a tank. That water can be easily used when you take a shower, wash your dishes or do the laundry. When the water is finished, tank refills itself and heats the water again.

What’s a Tankless Water Heater? 

A tankless water heater doesn’t preheat the water. When you turn your faucet on, it will bring the temperature of water to a warm level in just few seconds. Thus, it only works when you need it.

Factors to Consider Before Purchasing a Water Heater System

Before deciding to install a tankless water heater or a tank water heater system, you need to consider few important factors.

Firstly, you need to decide how much hot water is needed in your house? Is the water heater used for only one bathroom or the entire house is covered?

Secondly, consider your requirements in terms of gas and electricity, gas models (Tankless Water Heaters) require proper ventilation whereas electric models (Tank Water Heaters) need a certain amount of amperage, circuit breaker and voltage.

Also, you have to think where you are going to place your water heater. The water heater should ideally to placed around 50 ft. away from the source of power. And you need to mount it properly on a flat level surface.

Comparisons Between Tank VS Tankless Water Heater

Tank vs Tankless water heater

If we compare both the type of water heaters, each has their own set of Pros and cons. However, we have tried to compare them for helping you to make a better decision while purchasing your next water heater.

1. Cost: If we talk about the initial cost, tankless water heaters are more expensive than tank water heaters. In fact, they would cost you double the amount of tankless water heaters. But if we talk about saving your money in the long run, tankless water heaters are the ultimate winner. They are more energy efficient than the traditional water heaters as they only work when you need hot water. There is no unnecessary preheating of water.

2. Availability of water: With tank water heaters, one of the biggest problems is that if the tank gets empty, you have to wait until the water gets filled again and then is heated. This can take some time. This problem is only faced with people having tank water heaters because tankless water heaters do not store water in the tank. With it, you get unlimited supply of hot water without any delay.

3. Efficiency: Tank water heater wastes a lot of electricity. The problem with this water heater is that it’s running on a Continuous basis, even when you are sleeping, or even when you are out. This means a lot of energy is consumed without any benefit which further leads to inflated electricity bills. A tankless water heater works only when you need hot water. When there is no use, it doesn’t waste energy. They are designed in such way so as to save energy.

4. Durability: Tank water heater wears out sooner than tankless water heater. These water heaters usually last for over 20 years, whereas the traditional water heaters only last for about 10 to 12 years. Also, the tankless water heaters are more compact and small in size, which implies that they don’t take much space in your home. It is the right choice for you if you live in a small apartment.

5. Installation and Maintenance Cost: The installation and maintenance cost of tank water heaters are much more than tankless water heaters. This is because tank water heaters are based on old technology and have their own deficiencies. As already mentioned above, Most of these water heaters if maintained properly last only for around 10 years. They also come with a warranty of only about 6 years.

Tankless water heaters are more durable, last for around 20 years and most of the companies provide a warranty of around 10 years. Their maintenance cost is also very less and more efficient.

The water heater that you want to buy for your home generally depends on two factors- your need and budget. Also, if your house doesn’t have much space, you should go for tankless water heaters because they take less space and can be easily removed. The above comparison easily proves that tankless water heaters are better than traditional water heaters. However, you need to do your research properly before purchasing one as individual needs differ and what is good for one person might not be good enough for you.

Tankless Water Heater Venting
Tankless water heaters can significantly reduce your utility expenses and make your home environmentally friendly. Compared to the standard electric units, propane tankless water heaters can reduce gas emission by 60% and energy cost by 50%. The latest improvements in design contribute both to easier installation and an aesthetically pleasing look. In this article, we are going to discuss tankless water heater venting.

Tankless units need special venting to blow exhaust gas outside. There is a broad range of venting options at your disposal. Take a look at these quick tips for tankless water heater venting that can help you make the right choice.

Quick Tips For Tankless Water Heater Venting

There Are Two Different Ways for Tankless Water Heater Venting

Two different ways for venting your tankless power heater include:

  • Direct-vent venting
  • Power venting

Direct-vent units are equipped with two vents. The first one is used to pull in air from outside the assembly, while the other serves for exhaust. Power-vent units need only an exhaust vent. Although this may seem like the easy solution, they require placement in a room with enough air to make up for the combustion. On the other hand, you can install direct-vent heaters in smaller areas, such as attics or mechanical rooms.

Direct-Vent Pipes Can Have One or Two Ventilation Pipes

Direct-vent water heaters, in most cases, come with an intake pipe and an exhaust pipe. However, some manufacturers go with a single-piped concentric venting. They place only one tube that contains an external intake vent and an inner exhaust vent. This way, just one hall is needed in your wall or ceiling. However, they demand a larger area for installation.

Non-concentric vents require placement further from the wall because their vent pipes are hot to the touch. Concentric vents always remain cold because the hot exhaust air stays on the inside.

Concentric Venting Increases Safety

The majority of water heater experts recommends concentric venting because it increases safety. A leak in your exhaust vent can be a huge security risk because it lets carbon-monoxide pollute the air you breathe. Concentric vents keep this from happening. Even if there is a faulty exhaust pipe, the air will remain inside, preventing any pollution.

Concentric vent design also keeps your water heater cold to the touch, which prevents burn injuries from happening.

They Can Also Go Through a Side Wall

Tank gas water heaters used the natural draft and required venting through the roof to allow the hot exhaust air to leave the house. The combustion fan of tankless water heaters is different because it blows exhaust horizontally from the unit. It makes the job easier for remodelers and professionals handling installation jobs.

The fact that they can use a side wall means more flexibility and placement options. They can always adjust the plumbing a bit to accommodate the desired position of the water heater, which was not the case with older models.

There Is No Need to Vent an Outdoor Unit

Tankless water heaters have the self-warming capability that keeps them from freezing and cracking. Your job is only to install it outdoors for which you can use the summer or a warm day. After setting it up, your tankless unit will successfully withstand very low temperatures without venting. It’s an easy solution that frees up a lot of indoor space.

The only thing to make sure is that the electric supply is constant. The heating elements run on electricity, which means that if an outage occurs, tankless units can freeze up in cold climates.

Condensing Tankless Water Heaters Can Save You Money

Research shows that condensing tankless water heaters transfer about 95% of the heat they generate to the water. That is much better than their non-condensing counterparts, which transfer only around 80%. Non-condensing units pile up the hot exhaust gas, which then you have to vent through a metal vent.

Unlike that, condensing tankless water heaters emit a cooler exhaust gas, which means you can use an exhaust vent from polypropylene or PVC. You will save a significant sum of money by using a plastic vent, even if a condensing unit costs more to purchase.

Your Venting System Can Be Pleasant to the Eye

Some users were repulsive towards trying tankless water heaters because they didn’t like that pipe sticking out of the wall. They believed that it didn’t fit with the rest of the room and thought it was ugly. The manufacturers then came up with an aesthetically pleasing solution.

They now offer an extensive range of pipe covers and termination points. You just have to choose the desired wrapping, and the rest is up to the technical skills of the installer. If your installer does the job right, then your tankless water heater venting system will be conveniently hidden beyond the outside cover.

If you want to improve the aesthetics further, you can also install a recessed box. It will allow you to fit your tankless water heater unit inside a wall, instead of it being stuck to it.

The best tankless water heaters have managed to transform the manner in which the water heaters function by heating water that is on demand to save energy and ensure there is a constant supply of hot water for laundry, bathing, cooking and more. Tankless water heaters are also considered to be among the most advanced technological plumbing tools available for heating water though they need routine maintenance to ensure they operate efficiently and are reliable.

tankless water heater problems

How to troubleshoot tankless water heater problems

The best tankless water heating systems are today considered as ‘smart’ since one can easily monitor, control adjusts its operation, efficiency and performance. Most manufacturers are setting up electronic circuit boards that are referred to as PC boards. Also, a computer chip will aid in solving and diagnosing problems that face the best tankless water heaters.

The failure or issues that face the water heaters will exist on the inside of the tankless water heater and will be shown on the display that is situated at the front.

Some of the service problems that might face your tankless water heater to prompt external troubleshooting include;

  1. Improper Venting: Improper venting is considered to be one of the most popular error. Using the standard B-vent in a wrong manner can destroy the heat exchanger within a short period due to the acidic condensation. Improper venting is also able to cause leakage of the exhaust gas leaks that would otherwise be considered unsafe. The best tankless water heaters are known to use sealed stainless steel vent pipe that has been approved to be used in the Category 111 appliances.
  1. Gas Supply Problems: Most people are known just to hook up to the available gas line that is a ½-inch diameter.  However, strict attention must be paid to the requirements of the gas line section in the installation manual. You need to ensure that you size for the maximum BTU in one her and not the minimum. You need to ensure that you make an order for the right heater for the type of gas you will be using.
  1. Temperature/ Water Flow Fluctuation Problems: In case there is a low flow coming from the heater, you first need to check it if has to do with the input filter. Switch off the cold supply, slightly relieve the hot pressure and remove the filter to check for the debris. You can either clean or replace the filter and check for the flow again. In case there are variations in temperature or there is inadequate hot water, check the plumbing ‘cross flow’ that will mean there is a connection between the cold and hot.However, this might be as inconspicuous as the worn seal in a single handle faucet. To be able to check for that, you need to shut off the cold supply to the tankless heater and open either the pressure relief valve or the hot water faucet. In case there is a steady flow of water from the hot output after the pipe has been drained, there is always a cross flow at some place in the plumbing that you will have to fix.Some of the other temperature fluctuation causes can be the gas line though it might be too small or at times, the temperature of the tankless heater might be set too high with the aim of getting more hot water.  It can make the shower to be turned too far to the cold side where it will not allow enough flow of the hot water to keep the water heater steadily.
  1. Hard Water Problems: In regions where the water is hard with high calcium and magnesium levels, it is appropriate to ensure the water is first heated to make it softer. However never use reverse osmosis since it will destroy the heat exchanger. Keeping or removing the minerals in suspension will help lengthen the water heater life and reduce service problems.
  1. Environmental Issues: It is appropriate to ensure the tankless water heaters are installed in a relatively clean area that can easily be accessed and where there is easy access to sufficient combustion air that does not contain any dust particles or chemicals. If any of the conditions are available, a direct vent kit or model should be installed. These explain why beauty salon, restaurants and industrial applications should get a direct vent unit that will be able to draw combustion air from outside.

Things to Maintain For a Tankless Water Heater

For you to be able to get the most out of your best tankless water heaters, it is important you conduct routine maintenance on your water heater from time to time. You need to examine the area around the tankless water heater for any combustible materials such as chemicals or papers. Ensure you clear away any minerals that you will come across.  You need to frequently exhaust the air inlet and vent for any door, dust or other types of debris that might have accumulated preventing the free airflow that the device will be in need. You also need to check pipes for leaks. Check the tankless water heater for anything that seems extraordinary like a smell of gas and unusual sounds.

Flush the Water Heater

  • You can connect the garden hose to the tankless water heater drain outlet near the base. Put the other end of the garden hose near the floor drain or in a larger basket.
  • After that, flush the sediment from the water heater bottom by opening the drain spigot and ensuring the water flows until it is clear.

Adjust the Water Temperature

  • In case you have a gas water heater, you can easily adjust the temperature using the thermostat that is situated on the tank.
  • If you are using an electric water heater, you need to shut off the power to the unit by flipping the breaker at the service panel.
  • Ensure you pull back any installation to expose the thermostat
  • You can use a screwdriver to change the temperature of the thermostat in 10 degrees increments
  • First, close the panel, turn on the power and then check the water temperature after one hour

If necessary, adjust again.

Tankless water heaters are slowly gaining its popularity among the people in the US. Although it has been widely used in different countries, there are many who still use the traditional type of water heating which requires a tank.

Tankless water heaters, or sometimes referred to as continuous flow, instantaneous or on demand water heater has been proven to deliver a lot of advantages to its users. And although it may require you to spend a bigger amount the first time you install it, but the benefit will last for a long time.

tankless water heaters

Tankless water heaters – Beginning of a revolution

At London in 1868, Benjamin Waddy Maughan- a painter, first realized the necessity of tankless water heaters. In the continuation of the realization, he first attempted to invent such thing. And eventually, he partially succeeded. He invented the first instantaneous water heater. He named it after ‘Geyser’ – an Icelandic gushing hot spring. Still in many country, the term Geyser is used to address tankless water heaters. After that, the concept of tankless water heater never looks back and we have found the current era of tankless water heaters.

How do Tankless Water Heaters work?

Unlike the traditional water heater where in you need to have a tank that will hold the hot water and wait for it to be used. Tankless water heaters are totally the opposite. This instantaneous water heater works by instantly heating the water that flows into the device as you turn the tap on. Users will have a constant supply of hot water and no need to save them on the tank first which might be inconvenient for long term use.

The electrical heating coil makes the water hot as it goes through and is only turned on when in use. This is because tankless water heaters have flow sensors which make it energy efficient as well. This avoids the possibilities of getting leaks and operates better compared to the other.

Installation of Tankless Water Heater

tankless water heater installationThese particular type of water heaters are usually installed near where the water is to be used such as showers, kitchen, sinks or any other place inside the house where a source of water is required.

Because of this, users will be able to save energy as it eliminates the need for the water to go through long line of pipes in order to get heated water.

Due to its popularity, tankless water heaters are not limited only with the use of electricity as some runs on gas as well.Compared to storage tanks, tankless water heater use less space and does not require the need for buying huge tanks in order to maintain an amount of water that you have to reheat every now and then.

This definitely saves energy consumption especially for electric operated. On the other hand, using a gas unit requires an exhaust vent. Depending on the size of the building would also determine the size of the vent which will definitely use more energy eventually.

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  • Energy Saving – Since there is no need to reheat standby water in a typical storage tank unit, tankless water heater consumes less energy.
  • Long Life of Usage – Tankless water heater usually lasts for a long time compared to traditional water heaters. With proper use and maintenance, it could last for about 20 years.
  • Less Space Required – Having a space for a tank is not required. This type of water heater is simply mounted on the wall where the water supply is available while others may also be placed outside.
  • Continuous Water Supply – Take longer time when in shower without worrying that your heated water will ran out. Tankless water supply offers endless supply of water and maintains temperature as you use them.
  • Easy to Maintain/Repair – Compared to storage tanks, tankless water heater has replaceable parts that you can get in case in needs some repairs. This means being able to extend its service life and not force you to replace the whole unit or buy a new one.

It is truth that tankless water heaters are gaining popularity. But the point is, how fast? Well, the rate is slow. Here are some considerations that defy the fast growth of tankless water heaters.

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  • Cost of the Heater and installation process – Tankless water heater are more expensive to set up than traditional heaters. You have to buy the water heater unit which is usually about three or more times more expensive than setting up a storage tank type. Additionally, most of the time, tankless water heaters are mounted on the wall near the water supply, this may require more repair job and may need some alterations to the wall.
    Moreover, for gas operated tankless water heaters, users are required to have vents which may not be so cheap at all. Bigger units require more vents as well.
  • Limited Water Output – Since the water passes through the unit, the amount of hot water that it can produce is based on the size of the tankless water heater. Best example of this would be having more than two users at the same coming from the same water heater unit.

Selecting a tankless water heater will require some considerations when it comes to its energy efficiency, size as well as warranty. Some brands are more trusted than the others while a more expensive price may also follow. It is always best to have your house checked before shifting to tankless water heaters. For older houses, there might be a need to upgrade their power source as these types of heater will require more electricity in order to supply hot water for every unit in the house.

A water heater is a daily need in cold-based countries. It makes the water usable by heating it up. Usually people use conventional tank-based water heating system to heat up the water. But that is not optimal solution and the number of dissatisfied people using tank-based water heater is increasing day by day. If you are one of them too, you should get yourself a tankless water heater. Water heating technology has come a long way and some marvelous technology has been invented since then. A tankless water heater heats water as soon as you need it without any necessity of any storage and I am sure you will love it.

How Does a Tankless Water Heater Work
Photo Credit: Inland Empire Plumbing Company

How Does a Tankless Water Heater Work?

There are two types of tankless water heater, Electric and Gas depending on the energy sources used to heat the water in a tankless system. In lower portion I am going to describe you how does an Electric and a Gas Tankless Water Heater Work.

How Does an Electric Tankless Water Heater Work?

How Does an Electric Tankless Water Heater Work?
Photo Credit: Edpaster

Electric Tankless Water Heaters help saves energy that produces a return on material costs, maintenance, and utility. They only need a cold water line and electrical hookup, and there is no need for costly valving/piping associated with conventional tank heaters.

The tankless electric heater component is composed of a series of ingeniously designed curls/coils that instantly heat water as it flows through the vessel. A different power switch automatically applies electrical current to the curls when hot water is requested. The electrical current is not applied when water is not in use. The microprocessor can be present at the factory to maintain a consistent output temperature, even at varying flow rates of the unit.

The unit only functions once the user opens the control valve; thereby, there is no reserved heat which will be lost. You will only be paying for the warm substance which you consumed and not for the entire heating mechanism which runs on a 24/7 basis. Having these items in every household is a lot more convenient and economical. If you are searching for ways and means by which you can cut some costs on your bills, purchasing a tankless unit should be the number one on your list.

When someone opens the shower or any water outlet in any part of the house, this action will automatically be detected by a water-flow sensor. In turn, the tankless water heater will be set in motion. A chain of heating events will subsequently follow, and such will not stop until the user switches the faucet off. A regular shower only takes a few minutes, and this is the only time when the heater works as opposed to 24/7 continuous heating and reheating process. There is no overheating when you are using tankless heaters because once you are done using precious water, the sensor will no longer work and all the heating processes will cease.

How does a Gas Tankless Water Heater Work?

How Dose a Gas Tankless Water Heater Work
Photo Credit: Nicholsandphipps

In the middle of most recent tankless water warmers is an Electronic Control Unit (ECU). The ECU controls the majority of the elements of the warmer including ignition, modulation and temperature control and gas flow. It is additionally in charge of the well-being perspectives, with a fire sensor and programmed gas cut-off, in the case of an issue.

Getting Started:

If you open a high temp water tap anyplace in your house, a stream sensor, associated with the ECU, recognizes the stream and the warming procedure starts. The ECU begins the stream of gas and triggers the igniter. The igniter sparkles until the fire sensor recognizes a fire. In case the gas neglects to light inside a few moments, the ECU close down the gas stream to keep any dangerous aggregation of gas.

Heating the Water:

The gas burner applies warmth to the heat exchanger, through which the water passes. The course of the water is regularly a serpentine example, permitting the water to assimilate however much warmth as could reasonably be expected from the dividers of the heat exchanger.

As the temperature and flow rate of the incoming water can fluctuate, the ECU regulates the measure of gas that goes to the burner, turning it down or up, as required. This modulation of the burner intensity and gas is what keeps the water at a constant temperature. This usefulness depends on the contribution from a water temperature sensor on the way outside of the warmth exchanger.

To control the starting igniter, and light the gas, most consistent stream units are connected to your home’s power supply. However, there are a few units that utilization vitality made by the water moving through a little water turbine to give the ability to ignition. The turbine and battery-fueled units have a clear point of preference over the associated models since they will work notwithstanding amid a forced blackout.


As with most of the current energy efficient products today, the start-up costs tend to be expensive, but these are offset by the reduction in energy costs as you use the product. Using a tankless water heater uses much less energy than a traditional tank water heating system. You may need to do a few home renovations to install the system as electric models will need plugs and gas models will need proper ventilation. The systems should also be cleaned once a year and you may need to install filters depending on the quality of your water. Hope now you have no question in your mind about How Does a Tankless Water Heater Work.