Whole House Electric Tankless Water Heater Sizing

Gallons per minute gpm is the key when it comes to sizing tankless water heaters.

Whole house electric tankless water heater sizing.

Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand. The tankless water heaters shown here may or may not be suitable for your application depending on other factors such as wiring electrical needs home plumbing configuration water quality and more. Since tankless water heaters supply endless hot water you don t have to worry about capacity but instead think in terms of water flow rate. The right size is a tankless water heater that can heat enough gallons of water to a specific temperature per minute to keep up with the demand.

Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate. Press release market report expert whole house tankless electric water heater market size analysis top growing companies 2020 2026 rinnai bosch gmbh a o. Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home. Size matters when it comes to your tankless water heater.

In fact it is the most important part of choosing a new unit for your home. For example you might not be able to run more than one shower at a time without someone getting an arctic blast of cold water.