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How would you rate the design, installation and efficiency of your heat pump system? Poll is created on Nov 06, 2022

Flawless – perfect in every sense.

Very pleased and it required 1-2 visits back from the installer to tweak small things.

Generally good, but there were teething issues that we had to address with the installer that should have been done in the first place

Average. On the surface the system was OK, but upon closer inspection it wasn't great and needed a lot more work to get it to perform better.

Poor. The system is expensive to run and doesn't the heat the house adequately.

Absolutely shocking. The installers fitted a system that is not fit for purpose.

[Sticky] Rate the quality of your heat pump design and installation

Mars · 2022-11-06T09:46:29Z

I'm currently engaged in several 'private conversations' with heat pump installers and association members that have taken exception to me stating that less than 20% of heat pump installations in the UK have been flawlessly designed and installed, bringing the competency of installers into question. I believe that most systems are slapped in without much thought for design, especially when retrofitting a heat pump to replace a boiler. This results in systems that don't adequately heat the house and are expensive to run. So I'd like to see how far off the mark I am. Please vote on the poll, and you're welcome to elaborate on your poll selection but leaving a reply below.

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Air Source Heat Pumps (ASHPs)

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Mars

(@editor)

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Topic starter 11/01/2026 3:57 pm

Posted by: @razz

↑

I've had an emergency engineer come by yesterday and dismiss it all.

🤣 what exactly did he dismiss and why?

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razz

(@razz)

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11/01/2026 5:11 pm

@radwhispererdwhisperereorourkeditor Well, the guy came out, turned the heat pump to max, we stood outside near it for a bit, and acted shocked that I thought the sound was loud, tbf, it didn't sound so bad (still quite loud).

We went inside and you could hear a low rumble, he was dismissive of it, saying the fridge in the room sounded louder, the fridge is loud, but it's not an annoying deep drone. You definitely can't hear the fridge in other rooms.

Then we looked in the cabinet with the tank and the (circulation pump?) and volumizer. He guessed that the noise in my room might be from circulation pump, so he turned the speed down on the motor (it hasn't helped).

We went into my room upstairs, and he could hear the low drone, but apparently it wasn't that bad. Then he left.

The sound is even worse in the actual bed, cos the mattress seems to act like a stethoscope for the droning sound of water/circulation pump and the heat pump. You can definitely hear when the heat pump comes on. Last night I had to flee to my front living room to get some sleep.

My mum watches TV sitting where the photo was taken from, and she can't any more cos of the rumbling of the HP. It's a low 180Hz (approx) sound, as per octopus recommended app Decibel X.
Some more pics, to give a context of what the system is like: