Forums

Forums
Sustainable Sidetra...
Government Schemes,...
Govt petition for r...
 
Notifications
Clear all

Govt petition for review of EPC calculations to assist ASHP/GSHP

 
Government Schemes, Regulations, Planning & Organisations
Last Post by Alec Morrow 3 years ago
4 Posts
3 Users
2 Reactions
2,313 Views
RSS
 Sapper117
(@sapper117)
Estimable Member Member
339 kWhs
Joined: 3 years ago
Posts: 43
Topic starter 30/01/2022 3:18 pm  

Does anyone know if a petition has been raised on the govt sire for this? If sh where is it? If not is anyone interested in assisting I need 5 people and email addresses to start one. It is important that if the Govt want to increase the number of heat pumps installed then they need to ensure that the british regs are adjusted to allow for the unique way that heat pumps work, at present i am loosing points and just sitting below a c rating because I don't want TRVs on my system and simply to run it on weather compensation big black mark on my EPC!!


   
Quote
 Alec Morrow
(@alec-morrow)
Honorable Member Contributor
1591 kWhs
Expert
Joined: 3 years ago
Posts: 216
30/01/2022 8:10 pm  

i’ll  join you.

Heat pumps aren’t special, they are just another heat source for a heating system

boiler manufacturers use the same compensation controller on boilers as heat pumps or both

 

 

 

 

 

Professional installer


   
ReplyQuote
 Derek M
(@derek-m)
Illustrious Member Member
15283 kWhs
Veteran Expert
Joined: 4 years ago
Posts: 4429
30/01/2022 8:49 pm  
Posted by: @alec-morrow

i’ll  join you.

Heat pumps aren’t special, they are just another heat source for a heating system

boiler manufacturers use the same compensation controller on boilers as heat pumps or both

 

 

 

 

 

Hi Alec,

I'm afraid that I have to disagree. Because ASHP's in particular obtain 2/3 or more of their energy source from the outside air, their efficiency is severely affected when the outside air temperature is low. Basically the calorific value of the energy source is reduced at precisely the time when they need to work harder. It is therefore much more important for a heat pump to be correctly configured than any other boiler type.


   
👍
2
ReplyQuote
 Alec Morrow
(@alec-morrow)
Honorable Member Contributor
1591 kWhs
Expert
Joined: 3 years ago
Posts: 216
30/01/2022 9:15 pm  

@derek-m that doesn’t change the control strategy to put a heating system in a stable state (room temp)

The heat pump performance will be set and unalterable to accommodate the change in climatic conditions. All you can change is effectively a demanded temperature from the controller.

 

The system controls need to be adjusted to accommodate the building and other variables such as embitter type. These variables don’t change according to heat source.

 

Condensing boilers increase efficiency with lower flow temperatures, but the heating system demands the same temperature what ever the heat generator  there are even electric resistant heating boilers which vary flow temperature with no efficiency gain, but because the building is held at a fixed temperature there is a saving in electricity usage, albeit probably not much

 

 

 

 

Professional installer


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  



Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →