4 ms·Electric heat pumps can be over 100% efficient as they are using ambient heat to warm the house.by Tagbert 5y agoElectric heat pumps can be over 100% efficient as they are using ambient heat to warm the house.smnrchrds 5y agoIndeed. A recent Technology Connections video was on this topic: https://www.youtube.com/watch?v=MFEHFsO-XSI https://www.youtube.com/watch?v=MFEHFsO-XSIhulitu 5y agoDamn entropy.