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 6, 2026
@bami is there a cylinder schematic? Failing that a make and model might be enough to look up.
@bami I feel pretty safe then 😁. As a matter of interest where abouts is the coil and the sensor ?
@bami lol. I could be wrong 😆
@bami it may be to do with the position of the temperature sensor in the tank. If it’s half way down the top of the tank will be hotter than the set t...
@sandman1600 Thinking about it, my head was in radiator mode. Using under floor heating you can probably knock 5C off both of my suggested flow temper...
@sandman1600 That’s correct. The weather compensation takes over control of the flow temperature according to that little graph that is shown. It’s...
@sandman1600 so what that is showing is that at -3C outside your flow temperature is 55C and at 25C outside your flow temperature is 25C. Between t...
@editor It really just is a case of greed and easy money I fear, Mars
@johnr The really annoying thing about the high service costs is that servicing a heat pump is a lot less hassle than a gas boiler. All that is requir...
Ive done some rough calculations on those figures after trying to add in the wood and Ive come up with a demand of about 19.5kW at -3C to achieve 21C ...
@sandman1600 Yes, you have the idea of what you need to achieve. Ive no doubt you will see much reduced energy usage very soon. 🙂
@dowallydrifter if you had oil usage figures and didn’t use the wood burners much you could use that as well to get a sanity check.
SPONSORS
Degrees of Separation
Latest Posts
-
Harvest Thermal - ASHP with a smart thermal battery
I thought people here might find this interesting, even...
By springswood , 2 minutes ago
-
RE: Heat pump installation quotations
@batpred The only draughty place is in the living ro...
By sttpd1917 , 22 minutes ago
-
Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 38 minutes 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 , 43 minutes ago
-
RE: Help me keep the faith with my air source heat pump installation
I didn't know about those, they look like good pieces o...
By JamesPa , 4 hours ago
-
@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 4 hours ago
-
RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 5 hours ago
-
My first question is why bother with the auto balancin...
By JamesPa , 5 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 5 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 5 hours ago
-
I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 6 hours ago
-
RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 9 hours ago
-
RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
-
RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
By Majordennisbloodnok , 1 day ago
SPONSORS
