Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering youāll be able to ask questions, join discussions, follow topics youāre 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: Mar 21, 2026
@cathoderay Im just not sure what you are trying to find out beyond what already is showing as realistic savings. Also I do disagree with a statement ...
I thought weāve been hereā¦. Itās fact isnāt it?
I ought to make a correction - I said it shuts down when it passes the set temp. What I meant to say it modulates as it reaches the set temp. And as @...
I think your current room temp chart confirms that you need to be much higher than 30c flow temp. It is reaching your target room temp. And as is ofte...
@westkent itās defrosting when the flow temp line (in blue) drops below the return temp line. (In black) The flow temp rapidly drops because the de...
@westkent hi i can see now that at zero OAT these charts are showing defrosting. There seems to be a consistent deltaT. Does you house get up to the...
Was this chart taken when the house was cold? I think it would help others to interpret this if you can give OAT outside ambient temperature and insi...
From an experience point of view I have been watching our fixed flow rate Ecodan operate for a few years now and have seen how versatile its modulatio...
Here might be a case in point James. Here are 2 hourly charts showing flow and return. These are supposed to be operating at fixed flow 34C and...
@heacol Iāve also herd that a volumiser can help with short cycling. I wondered if short cycling would be reduced if it was caused by mild outdoor a...
Just to confirm⦠our system does not have a volumiser, buffer tank or LLH. Here is a chart showing how our defrosts occur. There is a 2 or 3 minute...
I didnāt see your earlier reply to @old_scientist which goes a lot further in detail. Which is pretty convincing. ive copied it here for a reminder....
- 26 Forums
- 2,692 Topics
- 63.1 K Posts
- 887 Online
- 7,101 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Home Alone with Home Assistant (previously A Beginner's Guide to ASHP Monitoring)
So I have (once again) taken the plunge into Home Assis...
By bontwoody , 9 minutes ago
-
That sounds a dangerous combination. Whichever gas is...
By Transparent , 12 hours ago
-
RE: Say hello and introduce yourself
@etchedpixels Ours is a little more involved as one roo...
By Toodles , 15 hours ago
-
You (or installer or other qualified party who...
By EtchedPixels , 15 hours ago
-
RE: Design Of Cascade System Replacing Undersized ASHP
@temperature_gradient thanks but my focus is just getti...
By pash44pump , 17 hours ago
-
RE: Home energy storage & battery register
3 x Alpha ess smile5 inverters each with 20kwh 20kw p...
By philmore , 20 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
I think I ought to go into greater detail on what is re...
By Transparent , 22 hours ago
-
RE: How do I set up Tesla Powerwall export for saving sessions since AI Takeover?
@papahuhu We might well have found that a much smaller ...
By Toodles , 2 days ago
-
RE: Summer heat is becoming the new winter cold in the UK. What are you doing about it?
Some pics of my heat solutions⦠Bought the shut...
By Watcher , 2 days ago
-
RE: Moving growatt axe batteries
@etchedpixels just been informed that you canāt have ba...
By David999 , 2 days ago
-
RE: Anyone have experience with Daikin Multi+ for air to air & hot water?
Maybe, just maybe, if you are prepared to leave the doo...
By JamesPa , 2 days ago
-
RE: How to heat a bathroom when using an air to air heat pump?
You can air/air a bathroom with a suitable ceiling or o...
By EtchedPixels , 2 days ago
-
RE: Plug and play solar. Thoughts?
They've been extensively tested by folks like the Germa...
By EtchedPixels , 2 days ago
-
RE: Electricity price predictions
@majordennisbloodnok Similar, although no heat pump h...
By IanMK13 , 3 days ago



