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Getting the best out of a heat pump - is Homely a possible answer?

 
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Air Source Heat Pumps (ASHPs)
Last Post by Potatoman 22 hours ago
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
6045 kWhs
Joined: 2 years ago
Posts: 938
29/06/2024 3:35 pm  

@mikeavison A secondary pump (like wot I have) might be fitted if there is a Heat Exchanger or a Low Loss Header in the plumbing interposed between the heat pump and the radiators / hot water tank. The debate over the need for a HE or an LLH has been given much coverage in this august organ so I’ll not say more, just that the secondary pump circulates the water in one side of the circuit whilst the heat pump’s primary pump supplies the water from the heat pump as far as the HE or LLH.

Regards, Toodles.

Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!


   
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 Potatoman
(@potatoman)
Eminent Member Member
179 kWhs
Joined: 3 months ago
Posts: 14
29/06/2024 8:07 pm  

@toodles Hi , thank you for your reply, I definitely will have another word with homely tech support and thanks for your information.I am no heating enengineer but as i understand it if any heating circuit that has a buffer or a low loss header tank it will have a secondary circulating pump, so if the Homely tec guy is correct, they are excluding them selves from at least half of the market, very strange.


   
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 Potatoman
(@potatoman)
Eminent Member Member
179 kWhs
Joined: 3 months ago
Posts: 14
29/06/2024 8:24 pm  

@mikeavison Hi, thank you for your reply, sorry for all the questions but I am trying to find out what your homely controls, could you tell me where circulating pump is located.


   
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 mikeavison
(@mikeavison)
Eminent Member Member
116 kWhs
Joined: 3 weeks ago
Posts: 11
30/06/2024 5:03 pm  

@potatoman Hi,

PXL 20240630 163208444
PXL 20240630 163215956

The pump pushes hot water around the rad circuit. Homely is wired into the Midea controller. The primary circuit is switched between a heat exchanger (rads) and a cylinder coil.

This post was modified 1 day ago by mikeavison

   
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 Potatoman
(@potatoman)
Eminent Member Member
179 kWhs
Joined: 3 months ago
Posts: 14
30/06/2024 8:52 pm  

@mikeavison Thanks for a great picture, it helps me a lot.


   
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