So my water heater - which heats the water, and also heats the home is only one credit even though it is my "Furnace" and my Water Heater ?
Seems illogical because the Tax Credit is an incentive , I could have purchased a Heat-pump for the Furnace - to use more electricity, and a Heat-pump Water heater to use more electricity .. and got the credit for both even though I would use more electricity. Hmmm.
