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 12, 2026
Suggest, as a test, you turn up the WC curve a lot so any change or not is unambiguous. I'd also set max ft to say 55 to get this parameter out of th...
Emptying the NR schedule will turn off NR mode yes. Im not sure you have a reason to do so yet though. With such a small reduction in O...
Not surprised by that. FWIW my Vaillant has done more or less exactly the same. Its COLD out there! With those figures I get an overall SCOP of 4, ...
Fair enough (the raging). Try not to let it upset you (easier said than done I know). Unlike some less fortunate people you remain in control it seem...
I think that's what they do, so they are varying ft. It would be good to see some plots at various oat values
No cycling there except possibly at midnight on the first day. You would expect so but don't forget cop varies with oat also. Also depends on how l...
Possibly. I haven't yet worked out what Vaillant do with water pump speed as I can't monitor it and don't have a reason to care. Why is it a 'proble...
So is the flow temp changing as well or is that fixed?
Yes but (a) you are talking Facebook and (b) it was the coldest day of the year so far so hardly surprising (+ all the things you say above)
My strong suspicion is that if a heat pump would otherwise cycle, particularly if it would otherwise cycle with short on time, then setting it to idle...
Can you clarify why the heat pump seems to go off altogether for several hours each day. [/quote] That is because I run in expanded mode and durin...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
This is very helpful, thank you.
By dansus , 1 hour ago
-
RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 2 hours ago
-
I am surprised by Vaillant and I would press them on th...
By JamesPa , 2 hours ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 3 hours ago
-
Flushing system, cleaning and inhibitor
Hi all, I have some questions about flushing my syste...
By Old_Scientist , 8 hours ago
-
I don't notice mine defrosting, and most of the time Im...
By JamesPa , 20 hours ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 1 day ago
-
RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 2 days ago
-
I meant to say I cannot register my kit at Energyplus… ...
By Batpred , 2 days ago
-
RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
By bobflux , 3 days ago
-
RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 4 days ago
SPONSORS
