Typical Water Heater Capacity

Lbs 1800 x 8 34.

Typical water heater capacity.

Sizing storage and heat pump with tank water heaters. Consequently these are the two most frequently installed sizes. Utility water heaters usually range in size from 2 5 to 19 gallons. 2 3 people you ll need at least a 40 gallon capacity tank.

Lbs g x d1. D1 lbs per gallon from the chart below. 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. Well to get an accurate answer you d have to calculate out how much hot water you typically use during your busiest hot water using hour.

30 40 gallons for 2 to 3 people. But if you only need a loose estimate of what size you need versus an exact calculation follow these guidelines. Now when it comes time to buy a hot water heater that has an fhr within a couple gallons of the number you just calculated should meet your family s needs. However every family has different water demand requirements.

3 4 people you ll need at least a 50 gallon capacity tank. In addition to tank capacity consider a water heater s first hour rating. If you re going with a storage tank water heater here s a rough guide for storage tank capacity. Multiply this number by 12 gallons and that is the fhr.

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 select the right state water heater for your home try our xpert product selector for personalized estimates of the performance and estimated energy cost. The largest of these miniature units can also be used to provide hot water to secondary bathrooms that may be situated far from your home s main water heater. Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs.

Typically residential water heater sizes range from 40 to 100 gallon tanks. To begin we need to convert the gallons of water to pounds. 1 2 people you ll need a water tank with at least a 30 gallon capacity. Water heaters running on 120 volt power have a long recovery time which is impractical for most households.

The tank has r 4 insulation and the minimum ambient temperature is 0 f. So in a three bedroom home that has four people the fhr would be 48 gallons 4 12 gallons. Bathing or showering per person 20 gallons washing hair per person 6 gallons washing hands per person 2 gallons washing dishes by hand 6 gallons shaving 3 gallons running dishwasher 14 gallons running clothes washer 30.