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Help me keep the faith with my air source heat pump installation

AdamK · 2025-03-29T13:05:20Z

i knew when setting out on this road it would be a challenge i just didnt know how much of one it would be. after having many quotes some i couldnt fathom why they were so high i thought id sorted an installer. problem is they are 72miles away so first issue was doing a remote heat loss which has been back and forth several times to get it more or less correct, but still have one room thats 2m2 smaller than what i measured. anyway the next issue was getting the 28mm primaries in before the new kitchen ceiling goes in. they sent a plumber that proceeded to bugger the job up as the wall sleeve kit hadnt been supplied to him. so sent him on his way. was promised the sleeve kit the next day and i said my plumber could fit it to save them sending an engineer. next day no kit. add to this all the mods im having to do to pipe work to maximise efficiency and im seeing why the take up is tiny in the UK. im not naming the company as they are a recommended one and have apparently done good work else where but maybe thats in there local area. i know living in Boston creates its own issues being miles from any proper trades so if someone asked me would i recommend getting a heat pump in my area id have to say no. theres just not enough skilled trades where i live.

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Air Source Heat Pumps (ASHPs)

Last Post by AdamK 16 hours ago

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AgentGeorge

(@agentgeorge)

Reputable Member Member

Joined: 2 years ago

Posts: 194

24/06/2026 7:07 am

@adamk it can work. I had a chair i bought was damaged, the company selling it declined to repair it. I got a quote for repair, and asked again. Declined again. I paid to get it repaired. I sent that invoice and the emails to barclaycard, asking for a chargeback for only the repair cost. After a long wait i was refunded my costs. Its not a quick process and you have to get proof the company your dealing with declines to fix the issue, but a chargeback is easier than using section 75

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Toodles

(@toodles)

Famed Member Contributor

Joined: 4 years ago

Posts: 2996

24/06/2026 9:08 am

@agentgeorge Circumstances may change things though. I had made an investment in Ripple Energy Project 4 for some thousands of pounds; the whole scheme went belly up. I made a section 75 claim against my bank as I had paid with my credit card. I think it involved a short visit to my bank with copies of the documentation and one phone call; I received a call back the next day informing me I was being refunded (they had had a fair number of claims on this particular project!) Recharges, Toodles.

This post was modified 4 months ago by Toodles

Toodles, heats his home with cold draughts and cooks food with magnets.

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AdamK

(@adamk)

Reputable Member Member

Joined: 2 years ago

Posts: 226

Topic starter 11/10/2026 7:45 pm

just had Vaillant over to service the HP and asked about the humming noise lots of 7Kw owners are experinceing and didnt get much of a response. seems they are still denying a vibration issue with the compressors which transfers through the house via the primaries as a 91hz hum when on HW or when ramping to meet heat demand, which if very cold outside can mean constant hum.

this is a sort of fix but i dont think it should be down to people to have fudges like this added to sort the issue. the compressor needs isolating from the heat exchanger.