Tankless Water Heater Capacity

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.

Tankless water heater capacity.

Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. Size matters when it comes to your tankless water heater. Gallons per minute gpm is the key when it comes to sizing tankless water heaters. If you want to upgrade your water heater size from 40 or 50 gallons storage water heater or replace it you won t necessarily need a big tankless water heater.

Flow rate is the key spec when sizing a tankless water heater o brian says. 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. Not sure how to decide amongst the choices here. Choose the right tankless electric water heater for you.

Just follow the three simple steps below to choose the right model and size you need. Tankless water heater sizing guide for residential applications. Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate.

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. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications. Check out our tankless water heater buying guide for help figuring out what will best suit your needs.

Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired. First calculate peak hot. 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. The following information will help you estimate your family s flow rate needs.

Select the number and type of each fixture that your household typically uses simultaneously. Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand.