Gas Water Heater Size For Family Of 4

40 gallons family of 3 4.

Gas water heater size for family of 4.

How to determine the size of a water heater tank. 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. 30 gallons family of 2 3. Looks like the rinnai ruc98in from amazon is going to be best to suit my needs.

Smith s proline power vent gas water heater available from supplyhouse should get the job done. 40 gallons family of 5 or more. 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. So i need to know what size tankless water heater is best for a family of 4.

The first factor in choosing a tankless water heater is calculating the size of your hot water heater. What size water heater do i need. Rinnai rl series he tankless hot water heater. It is listed as being 9 8gpm but since my factors are not the best case scenario it drops down to 6 7 gpm.

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. Before buying a tank water heater most homeowners want to get a rough idea of the water heater size their family needs. Family of 1 2. This is because water heater size directly impacts its cost.

If you re going with a storage tank water heater here s a rough guide for storage tank capacity. They provide the same level of performance and will work with electric or gas natural or propane systems. 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. 2 3 people you ll need at least a 40 gallon capacity tank.

A family of 5 people will require at least a 6 gpm tankless water heater. 1 2 people you ll need a water tank with at least a 30 gallon capacity. This is assuming 3 showers running simultaneously with 3 star water saving shower head. For the average family of four a 40 gallon water heater like a.

The bigger the water heater tank the more expensive it will be. How to size a tankless water heater. 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. If your space won t accommodate a standard size water heater there are alternatives.

Now let s get back to the original question about sizing a tankless water heater.