Getting these climate superheroes into more US homes would massively cut emissions, and it would be cost-effective. Here’s how the revolution would play out.
  • jmiller@lemm.ee
    5·
    9 months ago

    In addition to Thejevans points, your cost estimate is very high. That cost would be in line for a geothermal heat pump, which is far more efficient. Air to air heat pumps can be installed for more like $3-10k in most residential homes. And on the higher end that is a big house that is probably saving more than $550 a year.

    • KoboldCoterie@pawb.socialEnglish
      4·
      9 months ago

      Can you show me where you’re getting those figures? I was basing my estimate on a quick google search of prices, and the estimate provided for air-source heat pumps here. (MassSave is an organization that promotes energy efficient and climate friendly appliance solutions in Massachusetts), which seems to suggest $22,000 is an average cost, which is in line with the other estimates I was finding. ($10-$20k to buy the unit and $15-$30k including installation.)

      Edit: To be clear, I’m not trying to be contrary or argumentative; I’ve been looking into heat pumps as a possible option for us for years and if they’ve become justifiable from a cost perspective, I’d love to get those details.

      • jmiller@lemm.ee
        4·
        9 months ago

        I looked up prices in Massachusetts, they are higher than the national average. Looks like 2 main factors:

        1 A higher than usual percentage of mini splits vs central air. These will be more efficient and have a lot of comfort benefits, but are considerably pricier then retrofitting a central air system. So if you are retro fitting CA, you could come in under average.

        2 MAs impressive $10k+ incentive system for whole home heat pump systems has resulted in HVAC companies raising prices, because of course it has. This is why we can’t have nice things.

      • Sonori@beehaw.org
        4·
        9 months ago

        I just looked up the energy star list of high efficiency heat pumps, chose the largest model, and googled a few of the prices to get about 7 to 10k. Which is still absurdly high for what they are, but I was looking at the highest efficiency ones so I guess they have fancier compressors or something else that lets them raise the price. I also got an average cost to replace an AC unit of 500 to 2500 dollars.

        At the end of the day a air source heat pump is just an air conditioner with a 10 dollar reverseing valve, though they typically use very efficient air conditioners and add an emergency space heater aswell. Well if your being predantic an air conditioner is a heat pump, but generally in climate threads heat pump is shorthand for one that works in reverse for heating as well as cooling.

        I really can’t imagine the level of grift you would need to have to get from that to 22k, unless you were using ground source or retrofitting central heating into a building that previously lacked it, though in that case you would probably use several minisplits to replace individual radiators or baseboard heaters.