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 13, 2026
@jamespa — I agree the OP needs to make his plan of action clear. I've often said there is only one number that really matters, the IAT (indoor air te...
Heresy! Unless the property is huge, which it isn't, it won't take long to do a heat loss (half a day or so for a first timer, particularly with mod...
You only need dimensions, U-values (the spreadsheet has some standard ones built into it) and air change assumptions to use the calculator, some of th...
@newby — thank you for the extra details. It is rather ominous that the developer/builder wont release the heat loss calculations. You could save your...
@newby — can you say what your estimated heat loss is, how it was calculated (eg speardsheet, if so which one) and what you installed heat pump power ...
SPONSORS
Degrees of Separation
Latest Posts
-
The video in the link mentions a direction arrow, which...
By Singlespeed , 1 hour ago
-
RE: Cooling/heating with one unit
@rob-of-york thank you. Hadn't occurred to me that some...
By mrkfm , 4 hours ago
-
RE: Renewables & Heat Pumps in the News
Posted by: @editor I think we should make that approa...
By Rob of York , 10 hours ago
-
RE: Does anyone have experience of a smart water meter?
My neighbour received an email from Anglian Water sayin...
By AndrewJ , 11 hours ago
-
RE: Jokes and fun posts about heat pumps and renewables
Well the military is well known for going green, isn't ...
By Majordennisbloodnok , 12 hours ago
-
RE: Why are ASHP installs so expensive?
I've ripped out over 11kw of storage and panel heaters ...
By Singlespeed , 13 hours ago
-
RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
I think it may depend how much of the world is on fire ...
By EtchedPixels , 20 hours ago
-
RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
I hope it's not the same people who make the awful TV s...
By EtchedPixels , 21 hours ago
-
RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I found some interesting data about the price of heat p...
By Rob of York , 1 day ago
-
RE: PV and battery long payback - sense check query
Thanks for all the comments. I finally got to the bott...
By DavidB , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
People following this thread who are hoping that plug i...
By JamesPa , 2 days ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
By Singlespeed , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
just had Vaillant over to service the HP and asked abou...
By AdamK , 2 days ago
-
RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 3 days ago
SPONSORS
