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This article is trash. I can't believe it made it to the front page. It includes so many factual errors that it cannot possibly have been generated by AI. 1)

This article is trash. I can't believe it made it to the front page. It includes so many factual errors that it cannot possibly have been generated by AI. 1) I would like to point out that Oslo does not have harsh winters. If you wish to publish an article regarding heat pumps and harsh winters travel a lot farther north. Get into the -30C to -60 territory. Otherwise, you can say "Heat Pumps work in the southern parts of Norway where it gets cold in the winter". I live in Oslo and my heatpump works well. 2) Actually, good parts of Oslo are heated by district heating, Such as my house. Statnett thinks district heating in the northern most part may be more efficient than electricity for heating And some is already up and running. https://www.statkraftvarme.no/om-statkraftvarme/fjernvarmeanlegg/ https://www.statkraftvarme.no/om-statkraftvarme/fjernvarmean... 3) It is highly common in the North to use good old fashioned wood for heating which is a rich source of pollution. https://eng.mst.dk/industry/air/air-polluton-from-stoves https://eng.mst.dk/industry/air/air-polluton-from-stoves 4) Given the photo of the installation and the brochure the person in the picture is pointing to this is probably geothermal heat pump not an air to air heat pump֫ Those are far more energy efficient than air to air.

throw0101a 3y ago
> 1) I would like to point out that Oslo does not have harsh winters. If you wish to publish an article regarding heat pumps and harsh winters travel a lot farther north. Get into the -30C to -60 territory. What is the proportion of population that lives in IECC Zone 7 and above (or equivalent in each country): * https://basc.pnnl.gov/images/iecc-climate-zone-map https://basc.pnnl.gov/images/iecc-climate-zone-map There are folks in Climate Zone 7 in the northern tip of Maine (Caribou) that use heat pumps: * https://www.youtube.com/watch?v=OcwIz6heDss&t=43m21s https://www.youtube.com/watch?v=OcwIz6heDss&t=43m21s Folks running stuff in Alaska: * https://cchrc.org/air-source-heat-pumps/ https://cchrc.org/air-source-heat-pumps/ The design standards are that your system should be able to handle things for 99% of the days (on average), so during maybe up to 4 days your system would be running 100% of the time and still keeping up. The rest of time it's not running as hard. Look up ASHRAE's "design days": * https://www.airequipmentcompany.com/2021/what-does-design-day-really-mean/ https://www.airequipmentcompany.com/2021/what-does-design-da... * https://www.ashrae.org/technical-resources/bookstore/weather-data-center https://www.ashrae.org/technical-resources/bookstore/weather... Are there some portions of the population where a ccASHP won't make sense? Sure: but what population percentage, especially if you invest in some good air sealing and insulation first.
- ThinkBeat 3y ago
  I did not question the assumption that heat pumps work in cold weather. I questioned the methodology / logic used to "prove" this point in the article. Works in Oslo = Works in harsh winters is false. Works during harsh winters in Siberia = Works in harsh winters is true.

throw0101a 3y ago

> 1) I would like to point out that Oslo does not have harsh winters. If you wish to publish an article regarding heat pumps and harsh winters travel a lot farther north. Get into the -30C to -60 territory. What is the proportion of population that lives in IECC Zone 7 and above (or equivalent in each country): * https://basc.pnnl.gov/images/iecc-climate-zone-map https://basc.pnnl.gov/images/iecc-climate-zone-map There are folks in Climate Zone 7 in the northern tip of Maine (Caribou) that use heat pumps: * https://www.youtube.com/watch?v=OcwIz6heDss&t=43m21s https://www.youtube.com/watch?v=OcwIz6heDss&t=43m21s Folks running stuff in Alaska: * https://cchrc.org/air-source-heat-pumps/ https://cchrc.org/air-source-heat-pumps/ The design standards are that your system should be able to handle things for 99% of the days (on average), so during maybe up to 4 days your system would be running 100% of the time and still keeping up. The rest of time it's not running as hard. Look up ASHRAE's "design days": * https://www.airequipmentcompany.com/2021/what-does-design-day-really-mean/ https://www.airequipmentcompany.com/2021/what-does-design-da... * https://www.ashrae.org/technical-resources/bookstore/weather-data-center https://www.ashrae.org/technical-resources/bookstore/weather... Are there some portions of the population where a ccASHP won't make sense? Sure: but what population percentage, especially if you invest in some good air sealing and insulation first.

ThinkBeat 3y ago
I did not question the assumption that heat pumps work in cold weather. I questioned the methodology / logic used to "prove" this point in the article. Works in Oslo = Works in harsh winters is false. Works during harsh winters in Siberia = Works in harsh winters is true.