Jan RosenowHeat pumps were invented in the 1850s.
They are constantly getting better - higher efficiency, smarter, improved cold climate performance & low GWP refrigerants.
Here are five challenges cutting edge heat pump manufacturers are working on right now.
robloblaw@janrosenow
The start is a little unclear. They meant to say "air source heat pumps traditionally struggle to heat water to a high enough temp for radiator systems".
This pod explores how the problem can be solved, even for district heating systems.
https://www.volts.wtf/p/volts-podcast-audrey-schulman-and
More on ground source heat pumps:
https://www.volts.wtf/p/whats-going-on-with-geothermal
They commit the cardinal sin of saying gas is cheaper than electricity, without comparing the efficiencies. Heating with heat pumps is CHEAPER than fossil.
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Volts podcast: Audrey Schulman and Zeyneb Magavi on how to replace natural gas with renewable heat
A visionary solution to America's aging, leaking natural gas infrastructure: replace it! In place of pipes carrying gas, lay pipes carrying water warmed by the Earth. Two Massachusetts activists explain how it would work.
Heat pumps have a COP of 300-450%. Gas has an upper ceiling of 100%. Heat pumps get much more heat out per unit of energy in. And electricity will keep getting cheaper as more renewable generation gets built.
CO2 can itself be used as the refrigerant. Having a global warning potential of 1.
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Billy Smith