Hot Water Heater Options
We’re putting in new hot water heater for major reno in NW Massachusetts and my contractor discovered that 80 gallon heat pump hot water heater won’t fit in our basement, which is about 70 inches high to open floor joists. So they want to put in a 40 gal. heat pump hot water heater in tandem with a 40 gal. electric water heater, putting the set temperature lower on the electric unit so it will act primarily as a storage tank, just kicking on when high demand on the heat pump water heater.
Is this reasonable assumption? Will the electric water heater hold the temperature of the hotter water entering it from the heat pump water heater or will it turn on a lot and draw much power, defeating the purpose of putting in heat pump water heater?
For what it’s worth, we put 2 inches of EPS under the slab and are planning to spray foam the walls of stone foundation, so hoping basement will stay relatively warm. Would wrapping the electric water heater in extra insulation help much?
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