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Gas boilers v heat pumps.

 
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Last Post by batalto 4 years ago
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 Baz Cambs
(@baz-cambs)
Active Member Member
Joined: 4 years ago
Posts: 5
Topic starter 06/06/2021 8:15 am  
  1. Has anyone here replaced a gas condensing boiler for a heat pump or pumps and why?

   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
06/06/2021 4:04 pm  

I'm in the process of doing just this. Should save me money due to the fact I have solar PV and batteries. My boiler is new, but not performing as well as it should - so I'm using more gas than I should. With the GHG and the RHI it won't actually cost me anything to put it in. So win win all round!!

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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 Derek M
(@derek-m)
Illustrious Member Member
Joined: 4 years ago
Posts: 4429
06/06/2021 6:45 pm  

Hi Batalto,

I am not certain if you are aware, but you cannot claim both GHG and RHI, it is either one or the other.


   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
06/06/2021 7:43 pm  
Posted by: @derek-m

Hi Batalto,

I am not certain if you are aware, but you cannot claim both GHG and RHI, it is either one or the other.

You can claim both, it's just the value of the GHG is deducted from the RHI. So in my case the full amount minus £5000

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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2
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Morgan
 Morgan
(@morgan)
Noble Member Member
Joined: 4 years ago
Posts: 601
07/06/2021 9:06 am  

I thought GHG no longer existed since March.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.


   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
07/06/2021 10:42 am  

@morgan mine was approved before it ended, so I can still use it

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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