Residential Water Heater Sizes

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

Residential water heater sizes. Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications. Match the capacity of the hot water source to your exact needs. Typically residential water heater sizes range from 40 to 100 gallon tanks. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.

Now you need to understand what temperature rise means. 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. What size of water heater do you need. 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.

For tank water heaters the key criterion is hot water storage capacity. Simply locate the appropriate water heater sizes on ecomfort using your information. Water heater sizing guide from a o. Tankless water heater sizing guide for residential applications.

Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. Sizing is the technique that matches the capacity of the hot water source to the needs of the homeowners. Flow rate and temperature rise. Since tankless water heaters don t store water you don t have to worry about capacity size.

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. We already covered gpm. Sizing storage and heat pump with tank water heaters. Smith is proud to be a leading manufacturer of residential water heaters.

Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. 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. Consequently these are the two most frequently installed sizes. For tankless water heaters the key criterion is hot water flow rate.

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.