What size water heater do i need.
Water heater size for family of 3.
40 gallons family of 5 or more.
How to determine the size of a water heater tank.
Before buying a tank water heater most homeowners want to get a rough idea of the water heater size their family needs.
This is because water heater size directly impacts its cost.
The flow rate through the demand water heater would need to be at least 3 25 gallons 12 3 liters per minute.
The good news is that just by following a few guidelines you can find the perfect size water heater.
Simply locate the appropriate water heater sizes on ecomfort using your information.
How to size a tankless water heater.
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.
For a tank style heater household size is a simple indicator of hot water needs.
If your space won t accommodate a standard size water heater there are alternatives.
2 3 people need a 40 gallon water heater 3 4 people need a 40 50 gallon water heater 5 or more people need a 50 80 gallon water heater now before you make your final decision there is one other consideration to make and it s a big one.
That s the measure of how much hot water the heater will deliver during a busy hour such as first thing in the morning.
To reduce flow rates install low flow water fixtures.
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 bigger the water heater tank the more expensive it will be.
2 3 people you ll need at least a 40 gallon capacity tank.
Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
For 2 to 3 people.
The first factor in choosing a tankless water heater is calculating the size of your hot water heater.
They provide the same level of performance and will work with electric or gas natural or propane systems.
30 gallons family of 2 3.
Family of 1 2.
To determine temperature rise subtract the incoming water temperature from the desired output temperature.
For 1 to 2 people.
You can estimate the necessary tank capacity in gallons based on the number of people in the house.
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.
