Forums

Forums
Renewable Heating
Thermostats, Volumi...
What is the best ap...
 
Notifications
Clear all

What is the best approach for primaries in heat pump installations?

 
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Last Post by JamesPa 42 minutes ago
2 Posts
2 Users
0 Reactions
57 Views
RSS
 AdamK
(@adamk)
Estimable Member Member
211 kWhs
Joined: 3 weeks ago
Posts: 32
Topic starter 17/03/2025 10:02 am  

Was speaking to my builder this morning and he was saying about putting the primaries in the cavity when he rebuilds a rear wall, think hes trying to eliminate the need for trunking/insulation on the rear of the house. Im not sure about this as although there will be fibre glass insulation in the wall and themalite type block work internally im not sure it would be as good as using the zero loss insulation and trunking?

This topic was modified 37 minutes ago by Mars

   
Quote
 JamesPa
(@jamespa)
Famed Member Moderator
11029 kWhs
Veteran
Joined: 2 years ago
Posts: 2093
17/03/2025 4:54 pm  

Personally I would want them inside the heated envelope if possible.  Then the heat loss is useful during the heating season.  Obviously its a bit situation dependent.  Inside the cavity (preferably near the inner leaf) is, I guess, better than outside!

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  

Recently viewed by users: Toodles 16 minutes ago, Mars 36 minutes ago, Mars 36 minutes ago, JamesPa 42 minutes ago.



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 →