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RDSAP10 effect on existing heat pump EPC rating?

 
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Government Schemes, Regulations, Planning & Organisations
Last Post by Tim441 4 hours ago
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 Tim441
(@tim441)
Prominent Member Contributor
Joined: 3 years ago
Posts: 345
05/10/2025 7:04 pm  

@mike-patrick my understanding is that ashp should definitely be an improvement. But it maybe more than just a tickbox error. 

I think Assessors should use the exact make & model + MCS cert to get the details right. If they can't find your make/model etc they may use assumptions that are totally incorrect. The controls are also important. Preferably demonstrating using weather compensation. They still award points for thermostats/secondary controls even though most people say its best run 24x7 on open loop and weather compensation 

Have you contacted the assessor and asked for it to be re-checked? Offering evidence?


This post was modified 4 hours ago by Tim441

Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV


   
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 Tim441
(@tim441)
Prominent Member Contributor
Joined: 3 years ago
Posts: 345
05/10/2025 7:13 pm  

@mike-patrick maybe pickup this ChatGPT conversation and add more of your detailed setup etc. 

https://chatgpt.com/s/t_68e2b4c2120881919e6c7bd22e9688b5

I used it for mine by uploading previous EPCs, details of works, evidence etc


This post was modified 3 hours ago by Tim441

Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV


   
ReplyQuote
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