The 3 Best Tankless Water Heater Cleaning Kit in 2019 [Buyer’s Guide]

tankless water heater flushing kit

The popularity of tankless water heater cleaning kit has grown in the recent past especially the new generation water heaters that have replaced the conventional types.Best Tankless Water Heater Cleaning Kit

For one to be able to keep the tankless water heater in the best working condition, it is important to take good care of the tankless water heater and ensure that you perfectly maintain the unit.

For this purpose, choosing a Best Tankless Water Heater Cleaning Kit is very important.

There were different types of challenges come when people do not take good care of their tankless water heater. The tankless water heater cleaning kit refers to the ultimate kit that will enable you to maintain the water heater and prolong its lifetime.

The tankless water heaters are known to be a crucial subject for both the contractors and the plumbers. This is because most of the homeowners and individuals who are interested in purchasing a home are normally interested in energy sufficient homes that are green-friendly and economical.

Since heating water is known to be one of the most expensive energy costs in homes. Most people spend up to 30% on home energy expenses from their accounts. It makes sense when you decide to go for alternative energy-saving options.

Major Features of the Tankless Water Heater Cleaning Kit

# Increase in Performance: The best tankless water heater cleaning kit will always come together with a five-gallon flush tank, a submersible pump, five ft hoses, and a complete guide. The tankless water heater cleaning kit is designed in a way that it will be able to increase the tankless water heater performance and can cleanse the internal parts of the water heaters. One can easily fit it to the tankless isolation valves.

# It is used in all the Tankless water heater models: One of the best things about the tankless water heater cleaning kit is that it works well on all the tankless water heater models. You will not require purchasing a separate kit for the different types of water heaters. It does not matter if it is a gas-powered or electric water heater, the cleaning kit will always work well on all the available models. The kit weighs approximately 13.8 pounds.

# Safe to Use: You will always be safe whenever you are using the tankless water heater cleaning kit. You can rely on it without having any doubt. The kit was designed with the safety factors kept in mind for it to be enhanced and better the water heaters’ functionalities apart from increasing its durability. The kit weighs around 13.8 pounds.

Things to Consider Before Buying a Tankless Water Heater Cleaning Kit

The Size Of Your Household NeedsMinimum Flow RateGas Sizing InformationCompatibility With The Water SuppliesCombustion Air
 When buying the best tankless unit, you need to think about how you will be using the water in your household especially during the peak water usage times, the number of faucets, bathtubs, dishwashers, showerheads, Jacuzzis and washing machines. The best tankless water heater will provide you with endless hot water for up to two main applications at a given time.
The best tankless water heaters need a minimum flow of water around half a gallon per minute through the heating system to the heated water. The tankless water heater will deliver enough hot water that will enable you to determine the temperature rise and flow rate.
Ensure you look at the installation manual before you buy to see the gas sizing requirements. The best tankless water heaters will utilize around three to four times the BTUs of the conventional tank water heater. Request you plumber to check if the gas line, length, and size can provide enough gas flow to the unit. You can check with your gas company to help determine if the gas meter can accommodate the larger water heaters.
Ensure you consider the quality of the local water especially in areas where the potential for scaling can be increased. For you to be able to scale control in the water heaters, you will have to connect the delimiting hoses, disconnecting the unit and recalculating special delimiting agents.
The best tankless water heaters will always need the combustion air. It is necessary to be aware of how the combustion air will be delivered to your water heater and the total amount of combustion air that will be required.

Top 3 Best Tankless Water Heater Cleaning Kit in 2019

1. J.C. Whitlam FLOW-KIT Flow-Aide System Descaler Kit

J.C. Whitlam FLOW KIT Flow-Aide System Descaler Kit Review

The J.C. Whitlam FLOW-KIT Flow-Aide System Descaler Kit usually contains everything you need for your water heater. It quickly dissolves the rust, water scale, rust, and other water deposits thus enabling the heater to restore the efficiency of all the appliances inclusive of the tankless water heaters.

Pros & Cons


  • Non-toxic concentrate
  • Non-corrosive and biodegradable


  • Unlike the standard storage water tanks, retrofitting your home with a tankless water heater unit can be costly and difficult. You will have to hire a skilled plumber to have the job perfectly done.

2. Ecosmart – Tankless Water Heater Flushing Kit

Ecosmart - Tankless Water Heater Flushing Kit Review

While trying to clean your tankless water heater, EcosmartTankless Water Heater Flushing Kit is another option you might want to look up. It is another very good tankless water heater cleaning kit for a tankless water heater.

Pros & Cons


  • Easy connectivity
  • Goes with all tankless water heaters


  • this kit might seem costly. But if you compare it with other kits, it does not seem that expensive.

3. Rheem RTG20124 Flush Kit – Tankless Water Heater Flush KitRheem RTG20124 Flush Kit - Tankless Gas Water Heater

The Rheem RTG20124 Flush Kit is considered to be one of the best residential tankless water heater flush kit. You can see the difference once you start using it. Someone can easily run the dishwater, take two showers, hand wash a pan and perform lots of laundry on this unit at the same time.

However, the entire beast comes at a cost that might make it prohibitive for many people. In case you are in a large demand for hot water, the Rheem RTG20124 Flush Kit is the best choice.

Pros & Cons


  • Replacement facility
  • Energy efficiency


  • Few consumers have reported this kit to be overpriced. Other than that, this is a good kit.

Final Verdict

The best tankless water heater will provide you with nonstop hot water whenever you are in need of one. It will not waste the energy to heat the water.

However, you need to take into consideration a few issues like in case you are interested in replacing your water heater for there style. In certain situations, the tankless water heater may not be able to fulfill your requirements and might not be less expensive when compared to the tank-style water heater.

As noted earlier, the best tankless water heater cleaning kit is more expensive though they are still competitive in the market. You can measure the difference between the tank and the tankless water heater models in hundreds of dollars rather than in thousands that will be required to convert the household heating plants into solar or geothermal heat. The real expense will be incurred during the installation of the tankless water heater.

As you have read, there are more advantages compared to the disadvantages of tankless water heaters. You will need minor maintenance and flushing after you have installed the tankless water heaters.

Best Tankless Water Heater Cleaning Kit Comparison Chart


Free Trial







15"x10"x15" inch

Non-toxic concentrate

500 projects

Non-corrosive and biodegradable

Complete Descale Kit

3.5 Gallon Bucket,

350 GPH Pump, 

Professional required



14.5 pounds

Easy connectivity

Goes with all tankless water heaters

Supplied 5' SS hoses

Kit is worth the cost

14.5 pounds



Replacement facility

Energy efficiency


Flush Kit

HVAC replacement part

5 Gallon Bucket


If you have more queries or if you need assistance, you can contact us anytime and we will try to write back as soon as possible.


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