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What a Bad Heat Pump Installation Looks Like

 
Air Source Heat Pumps (ASHPs)
Last Post by Mars 18 minutes ago
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3781
Topic starter 01/12/2025 10:53 pm  

Our forums are full of brilliant technical discussions, design breakdowns, troubleshooting threads and plenty of stories from homeowners… both good and bad. We’ve got loads of words, plenty of anecdotes, and the occasional photo… but I think it’s time we went a step further.

I’m starting this thread so we can visually document what a bad heat pump installation actually looks like.

Not to shame anyone, not to point fingers, but to help homeowners see (clearly and unambiguously) what should set alarm bells ringing. We’ll also start a companion thread showing good installs, so people can compare the difference.


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Bad install bodge
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3781
Topic starter 01/12/2025 10:58 pm  

To get the ball rolling, here’s one from @aventus (Sean).

He was called out to a local hospice in Falkirk. The offices had no heating and no hot water, despite the building being only a year old. Roughly 200 square metres, all underfloor heating. On paper, a dream scenario: low heat loss, consistent emitters, should’ve been a really straightforward system.

Then the electrician visited and sent Sean this photo.

The heat pump wasn’t outside. It was in the plant room.

They’d installed a 14 kW unit indoors.

And the system had apparently been running off the emergency immersion for a full year.

No heat pump should ever be installed like this.

Never install an air source heat pump indoors.

IMG 0746

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