Gas Water Heater Size For Family Of 4

What size water heater do i need.

Gas water heater size for family of 4.

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. 40 gallons family of 3 4. 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. But it shouldn t be your.

40 gallons family of 5 or more. Smith s proline power vent gas water heater available from supplyhouse should get the job done. Before buying a tank water heater most homeowners want to get a rough idea of the water heater size their family needs. The first factor in choosing a tankless water heater is calculating the size of your hot water heater.

Rinnai rl series he tankless hot water heater. Family of 1 2. This is assuming 3 showers running simultaneously with 3 star water saving shower head. Rinnai rl94in a natural gas tankless water heater is the best choice for 3 bathrooms and additional house appliances.

1 2 people you ll need a water tank with at least a 30 gallon capacity. 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. A family of 5 people will require at least a 6 gpm tankless water heater. For example a family of 5 or more could live very comfortably on a 30 gallon tank water heater while a household of 2 might find that a 30 gallon tank can t provide enough hot water for their needs.

30 gallons family of 2 3. For the average family of four a 40 gallon water heater like a. 2 3 people you ll need at least a 40 gallon capacity tank. If your space won t accommodate a standard size water heater there are alternatives.

How to determine the size of a water heater tank. Now let s get back to the original question about sizing a tankless water heater. If you re going with a storage tank water heater here s a rough guide for storage tank capacity. Looks like the rinnai ruc98in from amazon is going to be best to suit my needs.

They provide the same level of performance and will work with electric or gas natural or propane systems. The bigger the water heater tank the more expensive it will be. Sizing storage and heat pump with tank water heaters. As an example an instant hot water heater size for family of 5 would be a 21 litres per minute flow rate vs a hot water tank size for family of 5 would be 230 300l 60 80 gallons.

It is listed as being 9 8gpm but since my factors are not the best case scenario it drops down to 6 7 gpm.