Cost to run new heat pump in 30 degree weather
I have a new 3-ton Goodman heat pump that was installed in June. Maryland electric rates went up 65% thanks to de-regulation and no competition. I countered the 65% rate increase by replacing a 21 year-old 7 SEER heat pump with a new 14 SEER, 12 EER, 9 HSPF system.
Goodman is great at providing technical data to homeowners. In reviewing the heating data for the system, I found that the unit draws 2.64 kilowatts at 30 degrees outside temperature.
(2.64 kw) x (12.74 cents/kw-hr) = 33.63 cents/hour to run the heat pump. That's cheap heat.
I measured the heated air just after the coil and got 90.1 degrees after the system had run for an hour straight. The auxillary heat didn't come on last night when it was 28 outside, so my balance point is below 28 degrees (with a 68 degree setpoint temperature).