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Grant Aerona3 R32 HPIDI17 performance in low temperatures

 
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Air Source Heat Pumps (ASHPs)
Last Post by Uk_pete_2000 1 month ago
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 davidm06
(@davidm06)
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180 kWhs
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Posts: 19
Topic starter 25/01/2025 11:41 pm  

That was in the inside room temperature


   
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 Uk_pete_2000
(@uk_pete_2000)
Estimable Member Member
387 kWhs
Joined: 4 months ago
Posts: 69
26/01/2025 12:11 am  
@davidm06 forgive me but you must be freezing at 10c inside. Most people have it set to around 20•c

   
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 davidm06
(@davidm06)
Trusted Member Member
180 kWhs
Joined: 2 months ago
Posts: 19
Topic starter 26/01/2025 9:12 am  

We were away for three weeks so put the temperature down and hot water off. Despite this, our daily costs were high due solely to the defrosting cycle 


   
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 Uk_pete_2000
(@uk_pete_2000)
Estimable Member Member
387 kWhs
Joined: 4 months ago
Posts: 69
26/01/2025 9:39 am  

Okay understand now. Even though we get defrosting cycles we could reduce them by running the HP at a much lower flow temp. At present we try to run between 25 to 27°c which keeps the house around 19.

We also try to only run during the day.


   
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