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 9, 2026
Hi and welcome to the forums.Does your system use a Mitsubishi cylinder or is it a 3rd party one?The FTC6 settings from 1-5 only work on Mitsubishi cy...
I've been thinking along similar lines to @tim441 from my own experiences with an Ecodan system, where I've got the benefit of reported COP data too. ...
In my case it was a very specific pattern of behaviour at an OAT of 5°C that I could only attribute as being related to freeze stat function that I ob...
They show up as two distinct processes within MelPump, so I can see the two independently of each other. Within the HA settings you'll see the Defros...
Thanks for clarifying. Excessive cycling seemed to be a factor for me when I hit the 5°C and 4°C temperatures where freeze stat protection kicks in. ...
I don't intend to hijack the main thread but are you aware of a way to reset the daily totals from doing this? I set up integrations of this kind a f...
Great to read a good service story.I know that there are priority lists held for households with vulnerable customers in them. Perhaps your household...
Fair point. The highest frequency of defrosts I'd seen so far had been 6 within a 24 hour period, but my sample size of relevant data is very small. ...
In Ecodan world there are two bits of terminology that are easily confused.Anti-freeze protection (which MelCloud shows as a running mode as Freeze St...
Just realised that this image of the cylinder cupboard also includes the location of the Ecodan's flow sensor (as I've just discovered from a part lis...
@danwright90 I've linked two videos below recorded this evening, one for getting flow temp info and another for you to check that your weather compens...
I would definitely suggest a solution to give you system data is useful, if not essential for identifying issues. I'm not sure what the MELCloud rece...
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 , 18 minutes ago
-
RE: Heat pump installation quotations
@batpred The only draughty place is in the living ro...
By sttpd1917 , 37 minutes ago
-
Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 53 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 , 58 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 , 6 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
