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Last seen: Jan 7, 2026
@bontwoody @heacol I'm not sure my system supports modulation either way. My pumps are UMP3 AUTO, with flow rate setting buttons on them, both curr...
@editor Yes so the pipe work from the HP that runs externally to the loft is copper, then the pipe work runs length of loft to the other end where the...
@editor Thanks for that. I managed to get the reference document at this link provided by @iancalderbank quite a few useful docs there.
@iancalderbank Thansk Ian, that document is useful. I figured out my system, after a good 40 mins in the loaf working out what everything does. I h...
Things have got worse 🤔 I have removed the Hive thermostat, unwired it from the control unit, and changed FSV 2091 and 2091 to 0, as it say...
@ianmk13 Yeah I wondering about that, I think its just calling on or off for the heat, then the weather compensation on the unit is adjusting the outp...
@iancalderbank Thanks thats really helpful. I've shifted control to the Hive stat in my living/dining room by setting 2091 to 1, I will keep an eye ...
The required volume of water in the system is more to do with the defrost cycle, and has little effect on mild weather cycling. Please read the post I...
@editor Yeah if you can get the refference guide that would be great. One of the main issues I have with a samsung system, is the absolutly awful docu...
So an update to this issue, I reinstalled the Hive and went back to my old method, had the hive room temp set for 28, but I added water Law compensati...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
I am amazed that there is not something out there to me...
By JamesPa , 2 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 7 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 13 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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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
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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
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 4 days ago
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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
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago
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