Water Heater Size For 5 Person Family

How to size a tankless water heater.

Water heater size for 5 person family.

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. However keep in mind that this is a very loose estimate and it may not be accurate for your household s water usage. We ll also show you how to calculate the exact water heater size that meets your needs and saves you money. Sizing storage and heat pump with tank water heaters.

Its evident from this chart that a family of 5 which is very common in the us requires a 56 80 gallon size water heater. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Storage tank hot water heaters are sized based on btu input and capacity in gallons. You can estimate the necessary tank capacity in gallons based on the number of people in the house.

Simply locate the appropriate water heater sizes on ecomfort using your information. If your family size is 5 or more you ll need an 80 gallon tank electric or a 50 gallon tank natural gas or liquid propane. Again the more you rely on hot water on a regular basis the more btus and capacity you ll need. Allot 12 gallons of hot water per person in the household.

For a tank style heater household size is a simple indicator of hot water needs. While traditional tank water heaters are calculated by your family size a tankless water heater is calculated by the quantity and types of fixtures or appliances it will serve. The fhr is always on the heater s yellow energyguide label but if you want to double check it yourself use the following formula and a four bedroom house as an example. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.