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: Oct 16, 2025
We’ve been relying on people doing heat loss evaluations to size the heat pump and two different ones came back with similar suggestions so we were ho...
@jamespa Thanks very much. I appreciate you’re probably sick of newbies coming along and asking questions but I’m genuinely trying to educate myself...
@bontwoody Thanks. I really do appreciate the advice from everyone. It’s all helping get my head around the new normal of a heat pump.
The Polypipe UFH system is set up with two manifolds (one on each level of the house) and a thermostat in every room.I’ve attached a photo of the mani...
@bontwoody That’s great. Thank you.And is it normal that when the weather compensation is activated, I can’t make any manual adjustments to the flow t...
Thank you. I’d literally just found that video as I couldn’t figure out what was meant by “Control Logic”. I tried reducing the flow temperature to 35...
I get the impression that they’re just trying to replicate a conventional boiler for people. Which is utterly nuts but I’m guessing it makes life easi...
We’re in a 130 m2 split level bungalow so that’s really encouraging. We’re not exactly hermetically sealed but we’re pretty airtight and insulated so ...
Thanks for the extensive info here. Can I just make sure I understand this… so the idea is to ramp up the thermostats so that there’s a constant call...
@tim441 Thanks for that. The Weather Compensation settings are definitely something I need to get my head round. The installers told us to ignore that...
@bontwoody thanks very much for that. Weather compensation is something we really need too look at. The installers told us not to bother with it. ...
SPONSORS
Degrees of Separation
Latest Posts
-
Does minimum system volume matter in the context of sim...
By Tony.Stolz , 2 hours ago
-
RE: Electricity price predictions
yes, same with the IOG tariff which is even a bit harde...
By Batpred , 2 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
I had a quick look and they are a little vague. They ...
By BlizzardGreen , 4 hours ago
-
RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 12 hours ago
-
RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 22 hours ago
-
RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 1 day ago
-
RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 1 day ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
One of the other mods has just reminded me that @ashp-b...
By Majordennisbloodnok , 1 day ago
-
RE: PV and battery long payback - sense check query
@old_scientist I have now drafted 2 replies - both have...
By DavidB , 3 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: adrian Manufacturer: Appliandirect.co....
By Adrian , 4 days ago
-
RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 4 days ago
SPONSORS
