Heat pump working at 28 degrees ambient
I did an experiment with my heat pump tonight. Wanted to see at what temp it would switch to the furnace. It is down to 28 right now and the heat pump is still running blowing 104 degrees out the vent...
Forum Discussion
Seems to me the question is at what temperature does it become more efficient to heat by gas? I have my home heat pump switch to GFA at approximately 36-37 degrees. Keeps us comfortable and the combined electric/gas bills reasonable. All obviously depends upon the price of electricity versus gas, efficiencies of each unit, installation parameters, etc. etc.
