
Last seen: Jun 17, 2025
Great answers @old_scientist. One other query I have with position G is - the location is on the return side…. after the DHW cycle the system feeds 50...
So... where would you install the volimiser? See choices in the attached sketch. I think this will help to resolve some nagging inconsistencies in pre...
If your UFH is a high mass construction you may be able to store quite a bit of heat so you can run the heating above the cycling temperature or to a ...
I recall some basic maths kwh= LPS X DT X SHC Where the SHC is specific heat carrying capacity (SHC of water is usually quoted as 4.2 whereas glyc...
Hi @jamespa I’ve been travelling for a few days and felt I needed to address some unanswered messages from you. I think and hope we just had some ...
Sorry James the radiator output is governed by temperature of the water inside them and the lower the flow temperature the slower and sustainable the ...
I think Rob Berridge states on this episode that you can’t have “too much” radiator capacity on a HP installetion (if you want the quote try 12 mi...
As per Robs comment @robs this is a R290 model which will operate down to 2kwh output…. ironically R290s are being hailed by some as the high te...
james you appear to be sighting an example which I have never said. I have never asserted this statement so I don’t see why you are saying it. Abov...
@jamespa apologies James I’m on a train so dashing between platforms
@heatgeek I wouldn't normally comment on such a varied emitter scheme. I think I’m just trying to establish a few principles of HP operation in a simp...
- 22 Forums
- 2,084 Topics
- 46 K Posts
- 24 Online
- 3,378 Members
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
@editor Mars if you have any recommendations for down s...
By abam48 , 11 hours ago
-
RE: Surface mount or bury primaries for heat pump installation?
@tomasmcguinness HI, The rules is a best practise, the ...
By ASHP-BOBBA , 14 hours ago
-
RE: Vaillant AroTherm Plus 7kW
@scalextrix if your under unit heater is like our Myson...
By Judith , 16 hours ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@cathoderay how did you get a script to run for that- d...
By benson , 17 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
@ashp-bobba thank you, and equally so, thank you for ta...
By Mars , 2 days ago
-
@judith good to know… I’ll continue to feed Wattson, an...
By Mars , 2 days ago
-
RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@editor great article re accreditation. I note ISO/IEC ...
By Bart , 3 days ago
-
RE: Renewables & Heat Pumps in the News
Here’s a little more technical detail/p>
By Judith , 4 days ago
-
RE: Who's your electricity provider and what's your tariff?
I don't (yet), but my PW3 is due to be installed shortl...
By Old_Scientist , 4 days ago
-
RE: MCS and NAPIT complaints process
@chrislay, is your heat pump complaint still unresolved...
By Mars , 4 days ago
-
RE: ASHP Install from hell - help please
@saf1973 I’ve been going through old cases on the forum...
By Mars , 4 days ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
By AF1 , 5 days ago
-
RE: Commencing on an ASHP Installation Process
Yes, it's "doable" if everything goes to plan, they arr...
By Old_Scientist , 6 days ago
-
RE: How not to install a heat pump
You are right. Thinking on this has evolved over the p...
By JamesPa , 7 days ago
-
RE: DHW SET UP with Samsung gen 5
Thats good news indeed, you are very likely almost ther...
By JamesPa , 7 days ago
-
RE: Plate heat exchanger considerations
As far as I can tell my vented system would have a peak...
By Scalextrix , 7 days ago