Angela Crow
Jan RosenowNEW RESEARCH: Heat pumps are more than twice as efficient as fossil fuel heating systems in cold temperatures, our new research shows.
Even at temperatures approaching -30C, heat pumps outperform oil and gas heating systems.
Nicole ParsonsPlease invent a cold-temperature tolerant EV.
Battery performance suck at sub-zero temperatures.
Lstn2urmama 🇨🇦@janrosenow ...would not know much about that...grew up in home built from logs and the heat pipes were in the walls of the home from a wood and coal furnace un regulated and everyone who ever visited would have told you this was one of the warmest huge homes with 7 bedrooms...great grandfather had something on his mind other than just building a home for a big family back in early 1900's...
laurie b@janrosenow Heat pumps have come a very long way in efficiency and reliability. We are seeing more and more home installations here in Idaho.
John Stonier@janrosenow only twice per the report? Actual results are closer to 3x as efficient!
@FullOnElectric at very low temps.
@janrosenow -30 is much less frequent in a climate changed world.
ex or current IDF unwelcome@janrosenow all heating systems have to be adapted and measured in their installation environments. So in an over 200 year old solid stone walled house would you confirm that I can just replace my oil boiler with an air source heat pump and save money?
Kat Valentine Allwell@janrosenow Clarification: *can be* twice as efficient.
The specific model of heat pump matters in this context.
To be efficient at low temperatures, it needs to be designed for low temperatures.
costrike@janrosenow Thank you.
Jeffrey@janrosenow in Belgium, it's worse. We all know heat pumps are better, more efficient,.. but the tax structure causes gas to be cheaper than electricity, by a big margin.
Jeff Phillips@janrosenow I can provide anecdotal evidence that a heat pump kept my house at 20 C (68 F) this past winter when the outside temperature dropped to -22 C (-8 F). And my electricity bill is much cheaper than using propane, which is my other heating option here in rural USA.
Götz Salzmann@janrosenow unfortunately
- we make electricity from fossile fuels (but less so every day)
- still fossile energy is WAY cheaper per MWh of heating than electricity (8ct vs 40ct for me for natural gas vs “green” electricity)
So a heat pump hast to be more than five times as efficient as the gas heater (to convince the other occupants that it’s better for them to use it more (as they ignore all the indirect costs))
- we make electricity from fossile fuels (but less so every day)
- still fossile energy is WAY cheaper per MWh of heating than electricity (8ct vs 40ct for me for natural gas vs “green” electricity)
So a heat pump hast to be more than five times as efficient as the gas heater (to convince the other occupants that it’s better for them to use it more (as they ignore all the indirect costs))