How To Compare Tankless Water Heaters

I'm often asked "How do you compare different tankless water heaters?"

However because most people own a standard storage tank water heater I'll explain the differences between them and the new tankless waterheaters, both gas and electric.

The old storage tank water heaters continuously heat water 24 hours a day, even if it is not in use, whether you are home or not. There is constant heating and re-heating of the stored hot water, thus, a total waste of energy.

Tankless water heaters on the other hand do not store hot water; rather, they heat water only if you need to use it. It is the flow of water when you turn on the faucet that triggers heating, whether you’re using gas or electric power, so that when you close the faucet, the heating elements is shut off as well, saving a lot of hard earned money.

This means also that you are being provided with endless water supply when you are using tankless water heater because of how heating works. The amount of energy saved will depend on the brand and model of tankless water heater you are using, and whether it uses gas or electricity.

The great thing is that cost savings can be anywhere from 11% to 69%.

Comparing Tankless Water Heaters

There are four main features to look for when buying or comparing tankless water heaters

Brand
Energy Efficiency
Water Flow Rate
Warranty
Price

A comparison of the different brands and models that would perfectly suit your home is also a great factor in determining how much can you save in your hot water bill.

There are a lot of brands available in the market that you need to review for you to be able to pick the right one. Among the top selling brands with highest reviews are Bosch, Rheem, Rinnai, Takagi, Titan and Noritz.

When choosing, you have to know what factors can be advantageous to you.

Energy efficiency is important because it determines the ultimate cost of the hot water. The more energy efficient the lower your hot water bill. Bosch 250SX has the highest rating of 87%.

The amount of water needed by your home is also related to the maximum flow of water delivered from a tankless water heater. At a temperature of 55F, Rheem Models RTG-74X, RTG-199DV, & GT-199X have the highest flow rates at 7.4gpm (gallons per minute).

The volume of water depends also on the size of the burner or heating element, bigger burners can give higher volume of hot water.

Among the brands mentioned above, Bosch gives the highest heat exchanger warranty at 12 years, but actual use could last up to 20 years as compared to conventional water heaters which could be useful only up to 10 to 15 years. This is because of mineral deposits that settle in the tank, since it is continuously filled up with water, unlike when you use tankless heaters.

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Best Selling Tankless Water Heaters

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