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...
Latest Posts
-
RE: Renewables & Heat Pumps in the News
@editor, I hear that too. I can confirm that out of ...
By ASHP-BOBBA , 4 hours ago
-
End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
As many of you know, our Global Energy Systems heat pum...
By Mars , 4 hours ago
-
@derbygraham fully agree with James, and it’d be good t...
By Mars , 4 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Finally got around to installing and setting up the Sol...
By Mars , 4 hours ago
-
Unfortunately its a function of the physics. Max heat ...
By JamesPa , 5 hours ago
-
RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 6 hours ago
-
RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 7 hours ago
-
There are just too many unknowns for me to comment on p...
By Transparent , 9 hours ago
-
RE: What is the main ‘dictator’ of Agile’s unit price?
@toodles I keep an eye on wholesale prices and energy m...
By ChandyKris , 9 hours ago
-
RE: Brand and installer questions for ASHP
Strange, perhaps it doesnt use modbus which the third p...
By JamesPa , 11 hours ago
-
RE: Upgrading my system, how far do I go?
For comparison, my PW3 with 11.04kW inverter, will char...
By Old_Scientist , 14 hours ago
-
RE: Changes to Tesla Powerwall Charging Regime?
Elon gate - legendary! I take my hat off to you @toodle...
By Old_Scientist , 17 hours ago
-
RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 1 day ago
-
RE: Minimum and Zero Disrupt Heat Pump Installations
True (first sentence) Thats the reason to consider th...
By JamesPa , 2 days ago
-
RE: High air source heat pump running costs – Vaillant AroTherm Plus
Quite right. I was using a rough guesstimate of doublin...
By Majordennisbloodnok , 2 days ago
-
RE: My Grant R290 9kW Heat Pump Installation
Again, really don't know how accurate this is! &nb...
By petch , 2 days ago
-
RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
@toodles The whole scheme is a shocking waste of money....
By Papahuhu , 2 days ago
-
RE: Anyone concerned about GivEnergy?
Many thanks for your, and the subsequent, answers tk qu...
By KevH , 2 days ago
-
RE: DIY or Don’t Touch? Solarman Smart Meter Install
Yes, and these guys would probably be my preferred inst...
By Batpred , 2 days ago
-
RE: Hot water tank lose heat rapidly on random days
@jamespa Hopefully their reasons are well intended! ...
By Bash , 3 days ago
-
RE: Ecoflow UK Support & Info Thread
As mentioned above, we’ve got our full review of the Ec...
By Mars , 3 days ago
-
RE: Say hello and introduce yourself
@sonosppp welcome to the forums. I see you've posted in...
By Mars , 3 days ago
-
RE: Guidance with installing a new heating system
@bobflux Great, thanks for the advice. The pipe has an ...
By Hamilton , 4 days ago
-
RE: Daikin Altherma 3 LT compressor longevity question
@optimistic-optimiser I have has a Daikin for a few yea...
By madsid , 4 days ago
-
RE: UK DIY Battery: SEPLOS 48V 200Ah x2 + Sunsynk 8K – Safe Installation for Garage Conversion
The rule of thumb is to ensure that you can isolate any...
By Transparent , 4 days ago
