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: Nov 3, 2025
@julianc over what period?
@sand what kind of taps do you have? Mixer taps, even on hot actually mix cold water in. That's why the water is never as hot as with single taps.
@suzer I am confused. It wont circulate around the pipes unless its the end tap is being used. So I don't really see the issue. It would be the same w...
@suzer high return flow temperatures would mean you aren't putting that much heat into the house. On the DHW, honestly those numbers are fine. We le...
News update from me. The scaffold next door is finally coming down and my solar panels are now back in the sun... after 3 months. At least it was the ...
1) No you don't need a new EPC - you just need a recent one (less than 2 years) for the RHI. So you will be fine, he doesn't know what he's talking ab...
@esteii I have no idea. Each house will differ as it's determined by the heat loss you experience based on the building fabric. I'd suggest just findi...
@esteii I would suggest you whack the thermostat up to something like 22 or 23° and see if the house can get to that temperature. If it does then your...
@esteii the first question would be, is the system using weather compensation? It should be running off your thermostat in the house given that you've...
How big is your house? 50kw with the current temperatures might not be crazy. I'm using around 50 per day at the moment as well - but our ASHP is 12kw...
I've finally received my bill for the 21st of November to the 20th of January. Why they billed two months together I have no idea. Long and the shor...
I had to get a new EPC for the RHI anyway
- 27 Forums
- 2,750 Topics
- 64.7 K Posts
- 732 Online
- 7,158 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 12 hours ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 13 hours ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 18 hours ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 20 hours ago
-
RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 20 hours ago
-
RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 21 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 4 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago



