Re: What do you know about tankless water heaters?
(Login Dr.Zhivago) Devils Posted Oct 26, 2011 4:55 PM
Wait, I was sorta off...
Also has to do with the temperature of the water entering your house, which can vary depending on the season.
Summer temp rise from 70 F to 115 F = 4 GPM
Winter temp rise from 50 F to 115 F = 2.8 GPM
A typical shower usually uses about 1.5 to 2.5 GPM, the tub, washing machine or dishwasher about 2.0 to 2.5 GPM. Always factor in a faucet, which is about .75 to 1.25 GPM, because it never fails that someone always turns one on while someone else is in the shower. Using these numbers, you should get an idea of what your flow rate is.