Hey! This video is older and, while some of it is good stuff, you should know that Air Source heat pumps have come a LONG WAY! I've made a new video talking about them and why we need More Pumping More Now.
   • Why Heat Pumps are Immensely Importan...  

Also the arc of heat pumps is now in a playlist!
   • Heat Pumps  

Heat Pumps Part 1
   • Heat Pumps: the Future of Home Heating  
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