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: Jun 15, 2026
@julianc 190m2 and not done a full year yet on ashp. Annual gas usage ~17,000kWh but efficiency unknown. We’ve used the wood burner a similar number o...
Some of these documents on moisture control
@julianc so far in January we’ve achieved 3.8 energy efficiency. Really pleased but we’ve not not a calibrated heat meter only the Vaillant prediction...
I was looking for the link about what heat could go down each microbore pipe. But I’ve been beaten to it. Your heat loss document should give the loss...
In no particular order some thoughts:- Clivet is a badged Midea and personally I wouldn’t have one given me. Since a Heatgeek trained installer sa...
On your first point @rosst your best best is to start with your installer, the manufacturer and dedicated forums possibly on Facebook for your type, s...
@jamespa ours (without a noise issue) was installed in September. I too recall reading the firmware is in a hardware (not-remote programmable) chip an...
@cathoderay digging into further dirty details are your fully open trvs suitable for bidirectional use or are they your secondary constriction?
@samiebon1 When adjusting lockshields its worth bearing in mind that some have a tiny range over which the adjustment makes any difference. S...
@samiebon1 our DHW gets to 48C with a heating temp of ~55C within ~ 45mins but it’s not usually empty (residual ~35 in bottom third of tank). The la...
@cathoderay &@bobtskutter This is getting interesting! I was convinced from much earlier posts that the early hypothesis of the PHE being inad...
@transparent to give context to my results of slow switch on current. Our Vaillant is inverter controlled, the system is open and the overall system i...
SPONSORS
Degrees of Separation
Latest Posts
-
Floor standing brackets for K3 rads
My neighbour is a plumber and said I would need to fit ...
By Singlespeed , 27 minutes ago
-
After an intense recode, I’m pleased to announce that w...
By Mars , 36 minutes ago
-
RE: Heat pump installation quotations
@batpred, @sttpd1917 I agree with what @batpred says...
By JamesPa , 36 minutes ago
-
RE: Harvest Thermal - ASHP with a smart thermal battery
As its using ToU tarrifs then its totally believable so...
By JamesPa , 2 hours ago
-
Why do you want to maintain a specific deltaT? The out...
By JamesPa , 2 hours ago
-
Hopefully this will answer your question. To...
By ASHP-BOBBA , 3 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 3 hours ago
-
Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 5 hours ago
-
RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 5 hours ago
-
RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 9 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 9 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 9 hours ago
-
RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 13 hours ago
-
RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
SPONSORS
