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: Sep 18, 2026
My heat pump is maybe 3 times oversized on paper being a 12kW unit and my heat loss to date has been around 4kW, although we do not heat the house to ...
Following on from @jamespa excellent answer(s), it really all starts with the heat loss figure. If you know the heat loss for the property (and even b...
@papahuhu Yes, a net metering tariff where import and export are the same price seems a bit of a paradox where import prices are rising at the same ti...
@Toodles Agreed. Perhaps I'm too much of a perfectionist, always trying to squeeze that last couple percent performance out of the system. However, th...
Yes, I'm guessing it was kind of easy (less costly) for them to delay until 1st March as I imagine most people are not exporting any significant amoun...
Me too. Another reason to consider IOF in summer, now effectively paying double SEG rates for export? I've not seen anything (yet) about IOF rates cha...
@upnorthandpersonal thank you for sharing details of your home - I thoroughly enjoyed reading your blog posts about your off grid home. Very impressiv...
Indeed, but HMRC subsequently rejected their claim and ruled that all income from Ripple was taxable as they failed the first test listed above: 1. ...
Yes, of course the total income from export could be greater than £1,000, so we need to understand if import costs for arbitrage are allowable expense...
Agreed, and the current direction of travel appears to be to move some of the levies on electricity into general taxation, which whilst it will help r...
We are in the same boat - I expect that our export payments will exceed £1,000 on the IOF tariff, but I am confident we are covered by the S782A tax e...
The relevant guidance in HMRC's tax manual is here: I assume that most home owners will be exempt under the following exemption. I quote below in...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Heat Pump deployment statistics: June 2026
To my eyes, sat behind all of this is a basic policy ma...
By Temperature_Gradient , 9 hours ago
-
Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 13 hours ago
-
We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 13 hours ago
-
RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 15 hours ago
-
RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
Have you looked at the Nibe website? They list their ap...
By Lizzie , 17 hours ago
-
RE: Why are ASHP installs so expensive?
A not unreasonable position and it wouldn’t be mandator...
By AndrewJ , 17 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 2 days ago
-
We kept ours and Heat Geek would have been in touch if ...
By Batpred , 2 days ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I would encourage you to have a conversation ...
By Rob of York , 3 days ago
-
RE: Is it the house or the equipment?
Thanks @jamespa The last hard to fix draughts in the...
By springswood , 3 days ago
-
RE: Vaillant Arotherm – Using Heating
@l8again Mine is typically using 11w including the i...
By Batpred , 3 days ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
If you have a flowmeter and two temperature probes, the...
By bobflux , 3 days ago
-
RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 3 days ago
-
SPONSORS
