One option would be the rheem rtgh 95dvln 9 5 gpm indoor direct vent tankless natural gas water heater.
What size gas water heater do i need for a family of 4.
To put it briefly for a family of 4 you will need.
Smith s proline power vent gas water heater available from supplyhouse should get the job done.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home.
This is because water heater size directly impacts its cost.
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 assuming 3 showers running simultaneously with 3 star water saving shower head.
Hot water for a family of four.
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.
A gas storage hot water system is also a great choice as they are very economical.
First list the number of hot water devices you expect to use at any one time.
Family of 1 2.
Storage tank hot water heaters are sized based on btu input and capacity in gallons.
50 gallons family of 5 or more.
Then add up their flow rates gallons per minute.
40 gallons family of 3 4.
But it shouldn t be your.
A 125 160l tank for a continuous system or 250 315l for off peak.
Minimum gallon capacity recommendations.
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.
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.
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.
3 4 people you ll need at least a 50 gallon capacity tank electric or a 40 gallon capacity tank natural gas or liquid propane.
Simply locate the appropriate water heater sizes on ecomfort using your information.
If you intend to use a tank water heater use these recommendations as a guide to finding the size you need.
30 gallons family of 2 3.
A tank of about 135 170l however there are also instantaneous system.
Now that this family can answer the question what size electric tankless water heater do i need they just need to pick a good tankless water heater.