BTU Rating of a 30-gallon Water Heater

[Joe Arcaro]

Hi:

Does anyon know the typical BTU input rating of a basic 30-gallon gas fired water heater?

Thanks,
Joe

[John Kogel]

If you gave us a brand name we could look it up.

Disclaimer: I am not a plumber, not even a scientist. :D

[Joe Arcaro]

If you gave us a brand name we could look it up.

Disclaimer: I am not a plumber, not even a scientist. :D

Hi:

The water heater in question is a Bradford-White gas fired water heater.
23 years old.

[Dan Hagman]

31,000 btu's

:confused: I think ???

[James Duffin]

31,000 sounds close to me.

[Gerald Benson]

The IFGC Table 402.2 says to figure 35,000 for approximate gas input for a 30-40 gallon water heater.

[Bob Harper]

Why would you need to know the BTU input on a 23 y/o DHW heater? It should be replaced and that would mean probably moving up to a 40/40. Are you checking on liner sizing, gas piping, or makeup air calculations?

[Joe Dach]

Here is a label from a 30gal Natural Gas I found last week.