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ASHP in cold well

 
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Air Source Heat Pumps (ASHPs)
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 Adam C
(@adam-c)
Eminent Member Member
Joined: 5 years ago
Posts: 17
28/12/2021 11:25 am  

Great experiments!

I know it is a more extreme option but you could raise the heat pump. Either wall mount or more easily build a 1m ish high foundation for it. Maybe store something under it to make space useful.



   
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 heat-pump-newbie
(@heat-pump-newbie)
Reputable Member Member
Joined: 5 years ago
Posts: 170
Topic starter 28/12/2021 1:42 pm  

@adam-c Hi - yes, I think that could have been considered at the design stage, though I wonder if we'd have heard the fan running if it was attached to the wall ? Now it's there I'm not going to ask the installers to move it.



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4762
28/12/2021 4:59 pm  

The new video has been added to the post from @heat-pump-newbie above.


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
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🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained


   
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 heat-pump-newbie
(@heat-pump-newbie)
Reputable Member Member
Joined: 5 years ago
Posts: 170
Topic starter 08/01/2022 12:16 pm  

@derek-m No smoke today but I've been monitoring the temperatures at the outdoor unit and comparing to well away from it as you suggested, they are generally the same 👍 So that's a great result. However, the shed is really in the way where it is now, so I'm going to dismantle it and replace it with a much smaller storage unit which I hope will do the same job of blocking the cold air.

We haven't had much in the way of calm weather, when the cold well would show up more. When I've got the new store in position and it's a calm day I'll light up another smoke pellet!!



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4762
20/03/2024 11:04 pm  

@heat-pump-newbie we never got a conclusion to your trials and experiments. Whatever happened and what conclusions did you end up coming to?


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2861
21/03/2024 11:23 am  

@editor Should the music not have been ‘Smoke gets in your eyes’? Toodles.


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


   
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 heat-pump-newbie
(@heat-pump-newbie)
Reputable Member Member
Joined: 5 years ago
Posts: 170
Topic starter 21/03/2024 11:57 am  

Hi Mars

I did remove that little shed altogether. There are two gates enclosing the triangular shaped yard and I always leave the inner gate open to let the cold air escape. The other gate is usually kept bolted so to improve the air flow entering the yard I might move the slats on it, or get a new double slatted gate. 

I might well get the unit raised up as suggested. I have another problem: the concrete surface of the yard is breaking up, there is a retrofitted drip tray under the unit with a too-small drainage pipe which has no fall to the nearest drain, so blocks with ice in sub zero temps. It won't last more than a couple of winters before it's just a mess out there. I think raising it up would mean a proper drain pipe could be installed, with a decent fall (soakaways don't work on our clay), with the added advantage of letting the cold air dispurse. 

However, watching the HeatGeek video about air recirculation it seems it's not such a problem as I first thought. 



   
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