C&S said:it didnt say.. just told me how many btu's and other specs..
Warren Wallace said:I have 3ht and run 240 all day
Greenie said:...and there is your answer, keep in mind "duty cycle" that is trigger time on and off affects Net flow through the heater, some dry stroke more than they wet, and vise versa.
120 degree rise for 45 gal per hour (0.75 gpm)
So....120 degree rise could be sufficient for someone pushing over .75 gpm if they were making just as many dry passes as wet.
Keep in mind, there is a "rhythum" that these heaters work best at, if you just hammer the trigger all the way across an empty room, and dry your way back across the room, you'll discover that is NOT the most efficient way to use a heater.