• perviouslyiner@lemmy.world
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    7 months ago

    Obligatory reminder to watch Technology Connections on the correct sizing and backups - the initial quote might be 2x or 3x what you need.

      • rmuk@feddit.uk
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        7 months ago

        Is there an even longer version? Technology Connections is like LOTR - an extra few hours is always welcome.

      • perviouslyiner@lemmy.world
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        7 months ago

        Someone else linked the main video, here is the playlist.

        Basics:

        • It’s just an air conditioner with an extra valve to reverse the flow.
        • They work in much colder weather than you are imagining.
        • They are more efficient than you are imagining.
        • They are even better if you look for the latest models coming out of the far east.
        • Actually do the calculations for how much power you need - don’t just let the installers say “This house currently has x kW of heating, therefore it will need an x kW heat pump” (same for the air conditioning mode)
        • It’s probably better to have a resistive heat backup for occasional extreme-cold days than to have an oversized heat pump.
        • rmuk@feddit.uk
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          7 months ago

          Yeah, the biggest problem is mentality, I find. People expect to walk into a freezing cold house, thonk the BOOST button and have bouncing radiators in fifteen minutes. Heat Pumps ideally need to be left to their thermostats to maintain the temperature.