3 ms·
I'm surprised it's only 30%. Even a COP of 3, which is pretty modest for a modern heat pump, would be 60% savings (abouts, not sure if my math is right).
by pkulak 3y ago
I'm surprised it's only 30%. Even a COP of 3, which is pretty modest for a modern heat pump, would be 60% savings (abouts, not sure if my math is right).
- pandaman 3y agoMost houses consume electricity for the purposes other than heating too.
- sokoloff 3y agoPeople commonly (by default) compare electric bills on $$ rather than on kW*hr, so an increase in rate would reduce the savings-as-compared. Different baseline electricity use and thermostat preferences could play a significant role as well. (Previous owners may have gone for a lower daytime setting and a deeper setback because of the inefficiency. A new owner with a more efficient system may quite reasonably choose to bias towards greater comfort than the prior owner did.)
- Projectiboga 3y agoNew guy might be getting more comfort by heating more while still using less total electricity.