Water Heater Tank Size Needed

The label on the water heater will list the capacity in gallons.

Water heater tank size needed.

Expansion tank size calculator. 1 or 2 people 23 to 36 gallons 2 to 4 people 36 to 46 gallons 3 to 5 people 46 to 56 gallons 5 or more people over 56 gallons add 10 gallons per additional person. Monday thursday 8am 7 45pm et friday 9am 7 45pm et. How to determine the size of a water heater tank.

Sizing storage and heat pump with tank water heaters. For tankless water heaters the key criterion is hot water flow rate. The good news is that just by following a few guidelines you can find the perfect size water heater. For 1 to 2 people.

But if you only need a loose estimate of what size you need versus an exact calculation follow these guidelines. 30 40 gallons for 2 to 3 people. 3 4 people you ll need at least a 50 gallon capacity tank. 40 50 gallons for 3 to 4 people.

You can look for this information on the factory label of the water heater itself. 50 60 gallons for 5 people. The first of these will be the size of water heater that you have. 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.

What size of water heater do you need. This is because water heater size directly impacts its cost. 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. Before buying a tank water heater most homeowners want to get a rough idea of the water heater size their family needs.

The bigger the water heater tank the more expensive it will be. And if you get a tank that s too big you re wasting money on heating water they won t use. There will be two factors that impact the size of expansion tank that your house requires. If you install a tank that s too small you ll run out of hot water before finishing the shower.

Write down the capacity. 2 3 people you ll need at least a 40 gallon capacity tank. Determine your water heater size and hot water temperature. If you re going with a storage tank water heater here s a rough guide for storage tank capacity.

1 2 people you ll need a water tank with at least a 30 gallon capacity. Determine the home s fhr or first hour rating. Sizing is the technique that matches the capacity of the hot water source to the needs of the homeowners. We re dedicated to our customers.

The second factor is the water pressure in your system. You can estimate the necessary tank capacity in gallons based on the number of people in the house.