Yak54RC OP t1_j2e2jh9 wrote on December 31, 2022 at 4:02 PM

Reply to comment by Ragnaroknight in Heat pump performace in rhode island by Yak54RC

What heat pump and do you know how much of that bill was the heat pump ?

Ragnaroknight t1_j2e2ugv wrote on December 31, 2022 at 4:05 PM

I'd say 80% of it.

My hot water, washer and dryer, fridge, and oven are also electric so that uses quite a bit. But it's immediately noticeable how much more power you use once it gets cold.

Anything above 40 degrees doesn't seem to use an insane amount of power, but once you get those below freezing days it can easily crank 80-100KwH in a single day.

argybargy2019 t1_j2eidt1 wrote on December 31, 2022 at 5:50 PM

I bet your auxiliary heating system is resistive electric. If so, you might realize significant savings if you investigate how to adjust its duty cycle and how to modify the switch temperature.

UncleJimmee t1_j2f5szv wrote on December 31, 2022 at 8:32 PM

this is likely right on. heat pumps are most effective at moderate temps. once it's cold enough they tend to switch to aux resistive heating.

Yak54RC OP t1_j2e4w1b wrote on December 31, 2022 at 4:19 PM

What water heater you have and what heat pump. On the coldest day this month my heat pump used 32 kwhr. You might have heat strips as auxiliary heating. Newer heat pumps like the one I have don’t need backup heat. I also have heat pump water heater which uses 3-5 kwhr per day in winter