Residential Water Heater Sizes

Flow rate and temperature rise.

Residential water heater sizes.

Sizing storage and heat pump with tank water heaters. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. The first hour rating is the number of gallons of hot water the heater can supply per hour starting with a tank full of hot water. To properly size a storage water heater for your home including a heat pump water heater with a tank use the water heater s first hour rating.

To select the right state water heater for your home try our xpert product selector for personalized estimates of the performance and estimated energy cost. However you still need to be mindful of two factors. To determine the water heater flow rate needed you ll want to add up the flow rates of all the appliances you plan to use at the same time showers washing machines etc. Simply locate the appropriate water heater sizes on ecomfort using your information.

Typically residential water heater sizes range from 40 to 100 gallon tanks. Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Sizing is the technique that matches the capacity of the hot water source to the needs of the homeowners.

Water heater sizing guide from a o. We already covered gpm. Since tankless water heaters don t store water you don t have to worry about capacity size. What size of water heater do you need.

Tankless water heater sizing guide for residential applications. 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. Match the capacity of the hot water source to your exact needs. Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need.

For tank water heaters the key criterion is hot water storage capacity. Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications. Smith is proud to be a leading manufacturer of residential water heaters. Consequently these are the two most frequently installed sizes.

Learn what size water heater you need based on your specific needs and priorities. Tankless water heater sizing calculator.