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Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump

 
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Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 3 hours ago
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Noble Member Moderator
7259 kWhs
Joined: 3 years ago
Posts: 745
10/03/2025 3:04 pm  

Posted by: @jamespa
↑

...

Indeed; I would recommend you focus on what's wrong/what they actually need to change 

...

Absolutely. My mention of the legal side in retrospect implies I was suggesting getting into litigation which is at this point unhelpful. Not how I intended it to come across, though; apologies.

 

105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs

"Semper in excretia; suus solum profundum variat"


   
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 JamesPa
(@jamespa)
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10772 kWhs
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Joined: 2 years ago
Posts: 2031
10/03/2025 3:12 pm  

Posted by: @majordennisbloodnok
↑

Posted by: @jamespa
↑

...

Indeed; I would recommend you focus on what's wrong/what they actually need to change 

...

Absolutely. My mention of the legal side in retrospect implies I was suggesting getting into litigation which is at this point unhelpful. Not how I intended it to come across, though; apologies.

 

No need for apologies, just cautioning about getting too hung up on all of the mistakes (of which there appear to be plenty enough to make a case) and instead focus on the outcome.

 

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
5014 kWhs
Joined: 3 years ago
Posts: 741
10/03/2025 4:07 pm  

@bami I think if the heat loss documentation matches a 8kW heat pump then you have a very good case as "not fit for purpose"

Alternatively if that is too convoluted, sell the 12kW model and purchase a 8kw or maybe even 5kw depending on what you discover. Its an easy job just to swap it out.

This post was modified 3 hours ago by bontwoody

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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