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!
Last seen: Jan 10, 2026
es, the house is a lot warmer and consistant ,with changing to balancing with lockshields, but using up a lot mor kw I fear . Over the last 7 days wi...
@heacol and thanks James, I will look at all the labelling to see if any of the pumps differ in Spec. I already have two spare ones chucked aside in t...
Yes all the same model , with a selectable speed as mentioned before , selectable manually by a button , but not sure if controlled otherwise. I will ...
Yes , I have three circulating pumps , one from HP and one circulating and one return, They do go on and off but I cant tell in what sequence , At the...
@jamespa Hi James , I thought I would draw out what is the best I can do , my system arrangement to help understand what I have in place , if you want...
@jamespa Thanks , once again! Is that not the flow rate shown on that page I posted, 16L/pm or is that a completely different thing you’re talking abo...
Ok James , thank you for your thoughts there . The option to bypass being the the drawing that you sketched ? perfectly willing to change 22 to 28 mm ...
Been 2hrs since DHW has been used , only a small amount used and sitting at 47.06 c , should be 50c set for programme , I have been in 20mns and DHW ...
Ill check all again, definetely LSV's open and balanced TRV.s fully open and one LSV fully open, 22mm does become 28mm. I will check return flow t...
OAT -2C Output to RADS 37.9C Return 24.4c Flow from HP 42.8Cc Return to HP 34.9c
@jamespa I have been up to change the CH pump and return pump back to No.3 and taken a note of flow temps circulating the CH . I will take another rea...
Perhaps the information is on here, it mentions on the comissioning sheet the circ speed should be three on the pumps , it has been on that upto a wee...
Latest Posts
-
I'm not a huge fan of AI, but comparing one scenario to...
By Singlespeed , 17 minutes ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 38 minutes ago
-
Heat Pump Overpromising – What Were You Actually Told Before You Bought?
We're looking into overpromising in the heat pump indus...
By Mars , 45 minutes ago
-
RE: Heat Pump Operation in Summer - Valliant 7kW
Yes I use the LG to cool the slabs with underfloor he...
By bobflux , 2 hours ago
-
Mentally you have to separate the ac side and the DC si...
By JamesPa , 15 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 17 hours ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 23 hours ago
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
Hopefully the ambient temperature sensor drives a weath...
By JamesPa , 2 days ago
-
RE: How many people are happy with their ASHP and do you believe them?
Im looking into these and my figures. The think that I...
By JamesPa , 2 days ago
-
Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 2 days ago
-
I will soon be struggling. Admittedly it is the summer,...
By Batpred , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 3 days ago
-
Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 3 days ago
-
RE: Who do I complain to about a poor ECO4 installation, can anyone advise?
Great. My guess is that you will need to re-adjust yo...
By JamesPa , 3 days ago
