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: May 31, 2026
@transparent We have a 100A fuse now, and 25mm^2 tails. It was originally a 60A fuse. I think the cable into our property was installed during ho...
@transparent Our area is leafy suburbs, all originally 4 bed 1960s build houses with initially 60A single phase underground cables. I’m afraid I ...
@catherinehh Is weather compensation active? While you require on average a lower heating power when it is say 10C outdoors, without weather compe...
@transparent What I asked for, and what I hope they think is happening too, is that we can consume whatever we like up to 100A, and that the overal...
We have just had permission to fit an 8kW Sunsynk hybrid inverter from UKPN. We have a single phase supply, 100A fuse, existing 4kWp PV with existin...
There’s usually a survey, to check if the boiler/heating works, but it’s written as ‘can’t check’ unless it’s actually running when there’s a flying v...
iBoost (and other diverters) are tricky to make work well with home batteries. If you have a home battery, you are likely to use a smart tariff - ...
@iancalderbank The code is entirely running in a loop; it measures flow rates, temperatures, then electicity meter pulses, then does it again. The...
@squeakysim The monitoring is all my own 😎 Two off +/-0.1C temperature sensors, each in copper "pockets", and a flow meter, and a little embedded...
I agree that it's unlikely that with the present electricity/gas cost ratio that heatpumps are "financial rational", which is the premise of the link....
Mixergy tanks I believe work by forcing statification - hot water is pushed into the top of the tank, and there is a clear hot / cold divide line. In...
The temperatures that you mention are all quite low, which is great for efficiency (but not for a warm house when it's cold out). What really matters...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Electricity price predictions
@old_scientist There is a degree of nuance to the ca...
By Papahuhu , 9 minutes ago
-
Further, there was a long discussion of the benefits of...
By Old_Scientist , 54 minutes ago
-
I appreciate that EnergyPlus is Valliant's first attemp...
By L8Again , 1 hour ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Unfortunately the answer is Yes you will need a new FTC...
By F1p , 16 hours ago
-
RE: PV and battery long payback - sense check query
So if it helps I was recently quoted about 8 grand for ...
By EtchedPixels , 16 hours ago
-
RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
By bobflux , 24 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
I had a quick look and they are a little vague. They ...
By BlizzardGreen , 2 days ago
-
RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 2 days ago
-
RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 3 days 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 , 3 days 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 , 3 days ago
SPONSORS
