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: Jan 5, 2026
@jamespa I take it you mean my house will be yoyoing in a sense with regard IAT so by having setback. My counter point is it doesn't affect our curren...
Fair enough, but i really dont get how running 24hours could not be more expensive, generally up at 2kwh/hr usage when running at fixed@32 full flow. ...
Last night was first below freezing temps. Heating went off at 9pm, kitchen was21.5 and bedroom21, both lost 1 degree overnight. I think thats reasona...
Just a clarification, are you running a fixed flow temp instead of wc?
@toodles cheers man. So i shouldn't mind too much the older altherma 2 model cant do this. Have external kwh meter and can see produced energy on unit...
Does it link to phone app to show usage etc. For my altherma2 i presume cant link to app as no sd card?
Out of interest, does anybody know if daikin altherma 2 have sd cards like the altherma3? Just talking to guy at work who has the newer model and was ...
If the house fabric is at certain temp at say 9pm that is satisfactory, you switch off heating and slowly lose that heat, its heat that is essentially...
@jamespa Was just general observation really. I wouldn't have the knowledge to question your calculations. All things being considered i know if i kep...
In my limited knowledge opinion, set backs will work for some houses better then others. Last night my heating went off at 9pm. Got to as low as 4deg ...
@kev-m Running constantly would also have used some of the peak usage so i think your savings are even greater.
No way running constantly is most cost efficient. Even in cold weather if you can bear mornings time being a bit below desired the savings are very no...
- 27 Forums
- 2,758 Topics
- 64.9 K Posts
- 1,335 Online
- 7,162 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Where heat loss surveys seem to go against practical reality
@cathoderay Good bit of analysis. Daily wou...
By JamesPa , 49 minutes ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 18 hours ago
-
RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 23 hours ago
-
-
RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 2 days ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 2 days ago
-
RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 2 days ago
-
RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 2 days ago
-
It’s been out a few days and Amazon has already attache...
By Mars , 2 days ago
-
RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 2 days ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 4 days ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 5 days ago
-
RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 7 days ago



