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: Aug 13, 2025
@carpenterstation Yep that looks all normal, if you want to turn the heating off and leave the hot water on then you have to do it from the controller...
@robs Is this only in the newer controllers I don't have that option on my FTC5
[quote data-userid="6617" data-postid="44648" The DHW COP is the worst we've had yet strangely. And there were no big drains on the water yesterday. ...
Yes it’s really there to allow the heat pump to vary the flow temp above the set point if the room temp is significantly below the set point and then ...
On an Ecodan the std compensation curve mode only allows the flow temp to drift by 1 or 2C before it shuts off on auto adapt the allowable drift is pr...
32C is the lowest my system will go without cycling but at that flow temp the heat input is higher than the heat loss so the thermostat has to cut in ...
@robs What controller do you have I think mine is too old to have that, I don't recall ever seeing summer mode in the service menu.
Mitsubishi Ecodan just runs the same flow temp when it reaches the limit of the set curve. I am not aware of any way of telling the heat pump not t...
I suppose it depends on what battery you get I can only comment on the powerwall I had my first for 5 years before the inverter went and it was at 95%...
Yep exactly that
With a flow of 40C the dT for a 20C room temp is 20 it’s the difference in temp between flow and room. The output of a rad at dT 20 is 0.3 of its out...
- 27 Forums
- 2,734 Topics
- 64.2 K Posts
- 2,196 Online
- 7,140 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
@blizzardgreen Hi, Apology for missing this comment her...
By Indevolt UK , 7 hours ago
-
RE: Can I start an argument about buffer tanks please? 🙂
You don't have to run the heat pump with a deltaT of 5°...
By bobflux , 9 hours ago
-
RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 12 hours ago
-
RE: Digest of UK Energy Statistics
@jeff Yes my brother in Oz told me of that charge year...
By Jancold , 12 hours ago
-
RE: Love veg, hate watering cans
My dear daughter came for a bath and was given clear (I...
By Jancold , 12 hours ago
-
RE: Questions about A2A for heating as well as cooling
@ashp-bobba ah that's good to know, I'll get in contact...
By donciccio , 14 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Samsung 16kw has been working well at home in Perthshir...
By DowallyDrifter , 15 hours ago
-
RE: Aircon - in listed buildings
@etchedpixels thanks for giving such a full and helpful...
By GrahamF , 2 days ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist The service engineer powered down the ex...
By Papahuhu , 2 days ago
-
RE: Issue with Samsung Cascade System
@jamespa It's a funny system, but was out only option l...
By Renewables345 , 2 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Thanks, I like the chart, very helpful and this will de...
By baroquebank , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Production resumed to normal once the issue ...
By MK4 , 3 days ago
-
Hole diameter is small but hole length is also very sma...
By bobflux , 3 days ago
-
RE: Are Wind Turbines Really “Losers”?
We were sailing near a wind farm in the North Sea last ...
By Jeff , 3 days ago


