05-25-2019, 08:38 AM
Even at $1500, it'll pay itself off in no time. I installed one in my son's house last year and it made a dramatic difference in his gas bill. We escaped the high cost of the vent pipe because we only needed enough to get through the basement wall. Can't wait for my water heat to die so I can put one in my house. 
I plan on using a variant of one to heat my shop up North. The ones for heating are lower temp and adjust their output according to demand.
Tom
I plan on using a variant of one to heat my shop up North. The ones for heating are lower temp and adjust their output according to demand.
Tom
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