Winnipesaukee Forum - View Single Post - Tankless Water Heater

jbolty · 06-09-2020, 08:19 AM

I'm a big fan of tankless but one other consideration for tankless is the incoming water temp. They are mostly rated by how many degrees they can heat the water from the incoming temperature at a given flow rate.

these are not real numbers, just the concept.

tankless can raise it 75 degrees at 5 gpm so if the incoming water is 45 the max temp would be 120.

I have a tankless in my rv and love it but when the temp gets close to winter and the water is just above freezing it does not get very hot unless the flow is really low.

06-09-2020, 08:19 AM	#6
jbolty Senior Member Join Date: Jun 2015 Posts: 653 Thanks: 312 Thanked 244 Times in 143 Posts	I'm a big fan of tankless but one other consideration for tankless is the incoming water temp. They are mostly rated by how many degrees they can heat the water from the incoming temperature at a given flow rate. these are not real numbers, just the concept. tankless can raise it 75 degrees at 5 gpm so if the incoming water is 45 the max temp would be 120. I have a tankless in my rv and love it but when the temp gets close to winter and the water is just above freezing it does not get very hot unless the flow is really low.