Forums

Forums
Renewable Heating
Air Source Heat Pum...
Daikin Altherma ASH...
 
Notifications
Clear all

Daikin Altherma ASHP help needed – Radiators are not heating up

 
Air Source Heat Pumps (ASHPs)
Last Post by uffda 12 months ago
9 Posts
4 Users
1 Reactions
1,253 Views
RSS
 uffda
(@uffda)
Active Member Member
39 kWhs
Joined: 1 year ago
Posts: 4
Topic starter 09/03/2024 4:52 pm  

Forgive me if this is in the wrong section but this is my first post.

My Daikin Alterma seems to be working but I don't have much heat coming through the radiators.

Please can someone tell me if the figures in the attached photo are correct and if not tell me how I can fix this?

Many thanks in advance 🙂

IMG 20240309 165015 3
IMG 20240309 112227

  s

This topic was modified 1 year ago by Mars

   
Quote
Mars
 Mars
(@editor)
Illustrious Member Admin
26280 kWhs
Veteran
Joined: 4 years ago
Posts: 2986
09/03/2024 9:29 pm  

@uffda welcome to the forums. Is this something that has started recently and the rads were fine up until now?

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
 HughF
(@hughf)
Noble Member Member
3009 kWhs
Joined: 3 years ago
Posts: 487
09/03/2024 9:32 pm  

That’s a daikin hybrid system which uses an intergas boiler as the gas fired bit.

looks like it’s firing at 31 degrees flow temp, which is probably about right depending on your radiator sizing and the outside temp when you took that photo.

I prefer to spend a bit more on running costs and have my weather comp bottom out at 38.5 degree flow, as you can at least feel that temp flowing through the rads.

This post was modified 1 year ago by HughF

Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.

My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.


   
👍
1
ReplyQuote



Mars
 Mars
(@editor)
Illustrious Member Admin
26280 kWhs
Veteran
Joined: 4 years ago
Posts: 2986
09/03/2024 10:11 pm  

@uffda I’ve just received a message from Daikin who have kindly offered to send out an engineer to you to see if they can resolve the issue. Please let me know if this is of interest.

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
Mars
 Mars
(@editor)
Illustrious Member Admin
26280 kWhs
Veteran
Joined: 4 years ago
Posts: 2986
11/03/2024 8:47 am  

Hi @uffda. Would you like me to put you in touch with Daikin and their engineer to help sort this out?

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
 Derek M
(@derek-m)
Illustrious Member Member
15283 kWhs
Veteran Expert
Joined: 4 years ago
Posts: 4429
11/03/2024 10:33 am  

Posted by: @uffda
↑

Forgive me if this is in the wrong section but this is my first post.

My Daikin Alterma seems to be working but I don't have much heat coming through the radiators.

Please can someone tell me if the figures in the attached photo are correct and if not tell me how I can fix this?

Many thanks in advance 🙂

IMG 20240309 165015 3
IMG 20240309 112227

  s

Are you maintaining the desired indoor temperature?

During milder weather the heat loss from your home will be much lower, so your radiators do not need to be very warm. 

 


   
ReplyQuote
 uffda
(@uffda)
Active Member Member
39 kWhs
Joined: 1 year ago
Posts: 4
Topic starter 11/03/2024 12:40 pm  

@hughf Many thanks 🙂


   
ReplyQuote
 uffda
(@uffda)
Active Member Member
39 kWhs
Joined: 1 year ago
Posts: 4
Topic starter 11/03/2024 12:41 pm  

@derek-m Okay thanks 🙂


   
ReplyQuote
 uffda
(@uffda)
Active Member Member
39 kWhs
Joined: 1 year ago
Posts: 4
Topic starter 11/03/2024 12:41 pm  

@editor No thanks 🙂


   
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 →