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Last seen: Jul 1, 2026
Okay, in which case have I converged on a semi sensible design? Excuse the crude pen diagram, but just so we are on the same page. FCU ...
Okay so now another stupid question, can I change the pump mode on the aerotherms? I have not seen anything about that in the manuals? At ...
Okay thank you. Lets say i go for option 2. I like the option of a ball valve to bypass during UFH only times! Great idea. Would a Cal...
Only because I am not sure what the manifold is providing me, if i balance the pipes by length, and open lop weather compensated slab heating, i am no...
Okay, you have me convinced. KISS. No buffer, no LLH, no mixing VRG130, FCUs and cold temp by day, slab post solar gain window at dew point + 2. ...
Now this has got me thinking quite a bit - I know this is not the best advice for perfect COP... but bare with me:I would like slab coolingI would lik...
@transparent You are right, I am not too concerned about choosing expensive kit, if the function justifies it! But likewise I do not want to spend ...
@majordennisbloodnok No that is just me trying to design and understand as much as possible myself. I am actually working in the middle...
Happy that A2W will prove less effective, although @bobflux comments about cooling with just AC and with slab then AC are interesting. Not looking ...
Okay, thank you for the replies. I think at the moment (having spoken to the good lady) we are leaning towards preferring A2W over A2A in ...
@bobflux Perfect - thank you. Okay the PICVs I were looking at were 16kPa, but even with that 7 of those robs me of too much, and I achieve the same g...
@transparent Contractors for elements, I like being hands on for as much as possible - I have got enough sparkie qualifications that I am happy to do ...
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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 , 23 minutes 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 , 6 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 , 11 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 , 1 day 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 , 3 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 , 4 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



