Choosing a Tankless Water Heater for My Home

choosing a tankless water heater

Going tankless when it comes to home water heaters is the best decision for millions of families in the country these days. When you think about all the benefits you gain for instance; a longer service life, ability to save energy bills by up to 50% and endless hot water in your house, why else would you not buy a tankless water heater?

choosing a tankless water heaterChoosing the right tank for your home is however the more challenging bit for many people. But worry no more, because we are just about to go through the whole process of selecting the right water heater for your home in a few minutes.

Unlike a point of use water heater which you can easily install under the sink, a whole house tankless water heater will require the help of a technician to install properly. Sometimes you may also need to retrofit your home so as to accommodate this new device accordingly. Other than that, here are the main factors you should consider right before buying this new device.

Fuel Type

Typical tankless water heaters are powered by natural gas, propane or electricity. If you decide to buy an electric water heater, ensure your power outlet’s voltage will be powerful enough to accommodate the amperage draw for your new device. You may also have your circuit breaker examined to ensure you home will be safe in case of any power accidents. Similarly for natural gas, ensure your home gas supply line can support the new heater. Don’t also forget to retrofit your home for venting purposes.

Determine Your Water Usage Needs

Different water heaters have different capabilities when it comes to providing hot water in your home. You therefore need to know how the total number of devices that will run hot water into your house. The showers and dishwashers for instance consume a lot of water, and hence will require a stronger device that will provide more hot water per minute.

You can calculate your water needs for yourself. Let’s say your kitchen faucet delivers 0.5 GPM, while your two showers deliver 2.5GPM each. In such a case therefore you need to go for a device with the ability to deliver hot water at a rate of more than 5GPM.

Required Temperature Rise

tankless water heater buying guideQuite frankly, tankless water heaters don’t always perform with the same efficiency at different temperature zones. In warmer climates, the heater can deliver hot water at a much faster rate than you would expect. In the colder Northern regions however, the room temperatures could affect the overall device’s performances.

Depending on the weather conditions of where you come from, choose a water heater that will deliver hot water at a fair rate irrespective of how cold it gets. In a place where the underground water temperatures are 500F, you may want a device that can raise temperatures by 600F and reach the average temperatures for a normal shower.

Additional Considerations

  • Gas powered tankless water heaters are better off when it comes to raising water temperatures. Actually, the difference between a gas powered and an electric powered device when it comes to raising cold water temperatures is vast. Whereas the electric model can only raise 700F if the device is delivering water at a rate of 2 GPM, the gas counterpart can raise the same amount of temperatures for a device delivering hot water at a rate of 5GPM.
  • The inlet flow rate can also affect the water heater’s performance – A fast inlet flow rate often affects the temperatures of water being delivered by the device.
  • The Device’s control features – A great device is one you can easily control, especially the water temperatures.
  • Presence of a warranty- Most trusted devices come with a two-five year warranty.

If you would like to choose among the best tankless water heater on the market, Tankless Water Heater Hub has got reviews, comparisons, buying guide and a lot more information that you might find useful. Once you have agreed on the features you want from your ideal tankless water heater, you can now start the search for a great device. But if you still have doubts about buying a tankless device, just have a look at the following benefits you would enjoy with the device.

  • Limitless how water supply – Imagine being able to use hot water whenever you need it for as long as you have the water heater with you.
  • Saving on energy bills – These devices don’t waste any heat on standby mode
  • More durability – While you would have to buy a new tank water heater after less than ten years, these devices can last for twenty or more years.
  • Requires less maintenance – Yes the upfront costs might be a little bit higher, but after that you will incur very few expenses in maintenance for the twenty or so years a great tankless water heater will last in your home.

As you plan on buying a tankless water heater, pay special attention to a device’s efficiency ratings and reputation with customers, because well, customers never lie.


  • Such a very useful concept. Thanks for sharing with us

  • Thanks for the information on how tankless water heaters can be powered by natural, gas, propane, or electricity and it’s important to ensure you choose one that fits your home. When deciding which type of fuel you want, you’d probably want to consider how well each option would work and the price. Talking to the installation company could help you learn more about the different options and help you figure out which tankless water heater will work best for your property.

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