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Last seen: Jan 7, 2026
@jamespa thanks again. It makes sense. Before the new bigger LLH, I had a 35mm piped distribution header. There was no blending there, only when I put...
Hi Gary, Yes, I think I’m getting the hang of it and whats gone on this winter. And yes, during the cold snap previously there was not enough en...
That’s a really thoughtful reply. Thank you. It’s a great help. lots to ponder. My view has been consistently that i don’t need much more than 35 t...
I mean, if I put in 45 on fixed flow as the flow temp, open all Zones and leave it, it will never get there, spends hours ( I’m mainly UFH in screed)...
@jamespa What controls the pumps Wireless stats control the rad and 3rd party stats the UFH, all of them calling for heat all the time Are you ...
@jamespa At the minute I have all stats turned to max and running weather compensation. Its running 24/7. all the rads are fully open, nothing is s...
@gary yeah, I have one wireless stat doing the rads, and then 3rd party ones which i just have turned to max now as they are a total pain in the ass.
@jamespa House is 258m2, recently renovated. done a good as job as possible with insulation: stone build but most external walls old and new have ...
Just to update here on the above. My installers came to hopeful sort my heat pump system out. They swapped a piped header for a bigger low loss heade...
@michaelsimpsonuk hi, I’m still aware that this isn’t your heating system: it’s your landlords. I’d tell them your concerns or move out.
That’s quite expensive, but, to put into context. My heat loss is about 9 to 10kw at 0 degrees. And with my high thermal mass, I can only run my house...
On that point, I’d agree. I’ve a 260m2 retro fit. Parts of it are 18th century cottage. I’ve got 11.2 kw. It’s not got lots of spare capacity, but see...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you are considering phasing the project, then I woul...
By GrahamF , 7 hours ago
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 9 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 10 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 12 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 13 hours ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 2 days ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 3 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 3 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 3 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 4 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
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