Auto-Balancing TRVs for ASHP system
I had my ASHP installer and a Joule engineer out to fettle a few things on my system this week. One recommendation that came up was to use auto-balancing TRV's around my rads.
I admit I'd never heard of them but, having looked on t'internet, there are claimed efficiency savings of c8% through their use. So, quick question, has anyone any experience of them on an ASHP system and are they as good as the claim?
2 x 12kW Samsung Gen6 ASHP, 5.6kW solar PV ground mounted c/w 10kWh Puredrive battery & Solis inverter.
Posted by: @dunlornI had my ASHP installer and a Joule engineer out to fettle a few things on my system this week. One recommendation that came up was to use auto-balancing TRV's around my rads.
I admit I'd never heard of them but, having looked on t'internet, there are claimed efficiency savings of c8% through their use. So, quick question, has anyone any experience of them on an ASHP system and are they as good as the claim?
I not certain how such a valve would perform with an ASHP.
Reading the details for the Drayton version, it would appear that they were developed for gas and oil boilers, since the claimed improvement in efficiency would appear to be by reducing the RWT.
With a heat pump improved efficiency requires a reduction in the LWT, which I'm not certain such a valve would produce, particularly if the heat pump is operating in WC mode, since the LWT is set by the outside air temperature.
From the installers point of view they would appear to be a much easier 'fit and forget' alternative to correctly balancing the system using the lockshield valves.
The objective of balancing the system, is to try to match the heat energy output from the heat emitters in each room, to the heat loss of that room, whilst maintaining the desired temperature. As the LWT from a heat pump increases and decreases with variations in the outside temperature, the individual room temperatures should remain reasonably constant at the desired level.
- 22 Forums
- 2,084 Topics
- 46 K Posts
- 38 Online
- 3,378 Members
Join Us!
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
-
RE: Commencing on an ASHP Installation Process
Today's the start of the installation and, having spent...
By Sheriff Fatman , 36 minutes ago
-
There are heat recovery heat pumps that are designed to...
By Scalextrix , 3 hours ago
-
RE: Mitsubishi Ecodan Fails to Heat Water despite temperature drop
Hi @m1kegibson Maybe a long shot but is the controll...
By RobS , 13 hours ago
-
RE: Renewables & Heat Pumps in the News
Yes I realise I'm picking this up a week late...... but...
By Transparent , 23 hours ago
-
@editor Mars if you have any recommendations for down s...
By abam48 , 1 day ago
-
RE: Surface mount or bury primaries for heat pump installation?
@tomasmcguinness HI, The rules is a best practise, the ...
By ASHP-BOBBA , 2 days ago
-
RE: Vaillant AroTherm Plus 7kW
@scalextrix if your under unit heater is like our Myson...
By Judith , 2 days 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 , 2 days ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
@ashp-bobba thank you, and equally so, thank you for ta...
By Mars , 3 days ago
-
@judith good to know… I’ll continue to feed Wattson, an...
By Mars , 4 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 , 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 , 5 days ago
-
RE: MCS and NAPIT complaints process
@chrislay, is your heat pump complaint still unresolved...
By Mars , 5 days ago
-
RE: ASHP Install from hell - help please
@saf1973 I’ve been going through old cases on the forum...
By Mars , 5 days ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
By AF1 , 6 days ago
-
RE: How not to install a heat pump
You are right. Thinking on this has evolved over the p...
By JamesPa , 1 week ago