Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Weather compensatio...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Weather compensation - your questions

 
Air Source Heat Pumps (ASHPs)
Last Post by Alec Morrow 4 years ago
5 Posts
5 Users
4 Reactions
1,527 Views
RSS
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4763
Topic starter 18/08/2022 7:51 am   [#470]

We are scheduling interviews on renewables and related topics for our Renewing the Conversation series and we’ll be kicking off our new series with an interview with one of the foremost experts on weather compensation.

If you have any questions about weather compensation that you’d like answered please drop them below or DM me.


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained


   
Quote
 Kev M
(@kev-m)
Noble Member Member
Joined: 5 years ago
Posts: 1276
18/08/2022 10:53 am  

@editor,

 

Mars, a question that comes up quite a lot is whether weather compensation should be used for ufh.  



   
👍
2
ReplyQuote
 Benseb
(@benseb)
Estimable Member Member
Joined: 4 years ago
Posts: 109
20/08/2022 1:36 pm  

Just posted a W on this. If using Weather comp, what to do overnight?

 

serms a clash between it being colder outdoors, so flow temp goes up. But then rooms need lower temp overnight.. 


250sqm house. 30kWh Sunsynk/Pylontech battery system. 14kWp solar. Ecodan 14kW. BMW iX.


   
👍
2
ReplyQuote
 batalto
(@batalto)
Noble Member Member
Joined: 5 years ago
Posts: 1092
20/08/2022 8:03 pm  

@benseb once you are at temp the power needed drops. That said you can adjust by a degree if you want to. There isn't much in it, but it seems to be marginally more efficient to drop the thermostat over night. In the end the pump will have to work harder later on to get the temp back. I think keV looked into 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


   
ReplyQuote
 Alec Morrow
(@alec-morrow)
Reputable Member Contributor
Joined: 5 years ago
Posts: 216
25/08/2022 9:23 pm  

are there any experts in the U.K..

 

i’d happily volunteer on the back of my 3-400 installs over 15 yrs on boilers (the approach is the same for both boilers and heat pumps)


Professional installer


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO