Beenthere, question for you. The new HP I am putting in will be 3.5 ton with a VS 4 ton air handler. This heats/cools upper and lower level of a contemporary ranch with about 2700 sq feet. I want to add a humidifier to this unit.
I also have a separate HP (not VS) that heats and cools about 1800 sq feet. This is an addition that ties to the existing house on both upper and lower levels.
Would you recommned a humidifier on both units or just on the new HP I'm installing? I was thinking doing the 600a on the new unit but thought that 2 500a's would be better. But then it will be a lot more hot water consumption which will add up. Thanks. Both HP are electric backup.