I am almost finished with our new home. I'll be calling the plumber in the next couple of weeks. Its a 2900 sqft all electric home. We are also on well water.
My plumber is planning on putting in an 80 gallon water heater, which I'm fine with. My concern is heating 80 gallons worth of well water at 60 degrees.
My thought was to install a 50 gallon heater first to pre-heat the water to 90 or so, then the 80 gallon unit would lift it from there to usable temp. My thinking is that this would be a bit more efficient as well as having faster regeneration time.
I had considered on demand water heaters, but the electric models really don’t seem all that worth while. I was also planning on using Energy Star rated heaters for both units.
Is my thinking off? should I not do it this way? Are the electric on demand units ok?
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