4 ms·
A heat pump can approach 500% efficiency and is powered by outdoor ambient air (using direct heating as a fallback). https://www.youtube.com/watch?v=-vU9x3dFMr
by dharmab 6y ago
A heat pump can approach 500% efficiency and is powered by outdoor ambient air (using direct heating as a fallback).
https://www.youtube.com/watch?v=-vU9x3dFMrU https://www.youtube.com/watch?v=-vU9x3dFMrU
- WalterBright 6y agoIt still uses electricity, and can be shut off during electric rate spikes, acting just like a "grid battery" without the expense.