Riffing off the earlier post about heat pumps in cold weather (https://lemmy.world/post/10270502), how much noise does your heat pump make?

We’re sandwiched between houses with traditional AC units and in the summer the noise level from each is oppressive. Would I be producing the same amount of noise, year round, if I install a heat pump?

EDIT: the AC units to either side of us are old (at least 10 years) and probably cheaper models. Maybe newer/better ones are quieter?

  • @supesA
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    611 months ago

    I had a heat pump and you could barely hear it outside. I had to be within 10ft to hear it running. It could be an age thing too. Mine was installed within the past 3 years, so that probably helps too.

  • Thousand Level
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    611 months ago

    My downstairs is heated by a cold weather heat pump, my upstairs by a furnace. In extreme cold snaps, I noticed the heat pump sound when I’m directly on the other side of the wall to it. But I can still easily tune it out and sleep with it going full blast.

  • @[email protected]
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    211 months ago

    We have a heat pump. It’s a little louder in the winter, but not by much. It’s very quiet other than the odd hissing sound it makes when defrosting the unit.

  • @[email protected]
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    911 months ago

    I moved into a place with a heat pump for the first time recently and mine is definitely noisy, or more noisy than I would prefer. It’s not terrible when you’re inside near where it is but it is noticeable. It’s also around 10 years old and I believe newer ones are supposed to be quieter.

    • Semi-Hemi-Demigod
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      611 months ago

      Heat pumps only last about 15 years so yours may be noisier due to wear and age. I just had a really old one replaced and my new one is a lot quieter.

      • @[email protected]
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        211 months ago

        That’s what I’m thinking, it also may not be installed very well which could be a factor. It’s not quite level, which is supposedly not good for them. I’m planning on replacing it within the next year or three depending on budget and how well it holds out. It seems to work great otherwise, it definitely is much more efficient than anything I’ve had previously.

  • @[email protected]
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    411 months ago

    We have two buildings on our property with mini split heat pumps. Both are very quiet. They can be a bit noisy indoors if you turn the fan above the medium setting. It’s basically silent on the low fan setting. Low is plenty for both heating and cooling.

  • @[email protected]
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    4411 months ago

    It’s as noisy as an air conditioner. Because it is an air conditioner — just run in reverse. Some AC compressors are noisier than others depending on manufacturer and quality.

    • Seraph
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      11 months ago

      Just replaced a couple of 25 yr old ACs with heat pumps and this is the answer.

    • @[email protected]
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      311 months ago

      That said, the two noisy parts are in my basement and outside, so meh, whatever. It’s never bothered me. Every now and then I’ll be in the basement when it kicks on, and it’s mostly just reassuring, like at least that things still working fine.

  • Ghostalmedia
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    611 months ago

    Like with AC units, there are quiet heat pumps and loud heat pumps.

    I would look online for reviews that talk about sound. Look for information about decibels and or sones. A lot of manufacturers publish that info.

    You might also want to see if anyone has published anything about the sound your models put out. That way you have a baseline number to compare new unit specs to.

  • partial_accumen
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    311 months ago

    If those AC units are old then they can be noisy because of their original design, bearings wearing out, or rubber dampers deterioration.

    New units aren’t what I’d consider really noisy. More of a rushing of air (from the fan) instead of mechanical noise (from the compressor).

  • Semi-Hemi-Demigod
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    211 months ago

    You might be able to reduce the noise with some fencing or plants. Some bushes, placed where they won’t disrupt airflow, will definitely reduce the noise.

  • Drusas
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    211 months ago

    Mine isn’t especially loud but my nextdoor neighbor’s is.

  • @[email protected]
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    11 months ago

    At my mom’s place — air-source heat pump, double-paned windows — I can’t hear the thing at all from inside the house, and can only hear it if I go on the side of the house where it’s operating, which doesn’t get a lot of foot traffic. You can hear the fan there.

    Generally, I haven’t heard people complaining about it in the US. I have seen some people talk about it recently in the UK, which is in the middle of a push to transition to them, and I’m wondering if that’s because townhouses are more-common there, with houses packed closely together.

    I understand that you can get noise-reducing enclosures:

    https://www.silent-mode.net/domestic-equipment.html#/

    There are also water-source heat pumps. I don’t know how the noise differs, but I’d bet that it’s quieter, because you’re moving water through a pipe rather than a lot of air. However, their installation cost is considerably higher (though their energy efficiency is also higher).

  • @[email protected]
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    211 months ago

    Heatpumps are in par with AC. I’m noise sensitive dye to poor hearing and sometimes turn it off to help me hear better.

  • @[email protected]
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    211 months ago

    Visited family for new years and slept next to one. It made about as much noise as their fridge. It’s most likely a newer model.

  • @[email protected]
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    11 months ago

    Mine is not hearable from the inside and only hearable on the same side of the house, but I guess it depends heavily on the model. I. The summer it only runs for hot water - maybe 4 times a day.

  • @[email protected]
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    1211 months ago

    13 year old heat pump owner here. It sounds like a normal AC running outside. It gets a bit loud in certain moments when it runs some exhaust cycle - not sure of the term for it - but that just happen sporadically here and there and lasts no longer than a few seconds.

    • @[email protected]
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      11 months ago

      The “exhaust cycle” is defrost. When running in winter heat pump mode the outside coils will freeze over and must be periodically defrosted by warming them back up, else the system will stop moving heat effectively.

      Varies by heat pump but some simply have a valve that self recirculates the refrigerant without entering the house, as all the compressor power turns into heat work to melt the ice, and is also why they get noisier.