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Last seen: Sep 24, 2025
@jamespa All one can say is many thanks for the help from all and more importantly patience! Will now push on with pictures. I do have the manu...
Thanks. Yes I understand how the curve works. What's not clear is how can a low curve eg 0.3 that's right for the house temperature selected, but d...
So just to be clear here. Even when the OAT drops below freezing a low heating curve should still translate to a high LWT? Perhaps I'm not seeing ...
@cathoderay Many thanks for the reply Yep. We're 250m up in the Cheviots in the Borders! I have none prior to central heating. We were...
Hi cathodeRay Can't pm you I haven't enough posts. I'm attaching the docs I have on heat loss. The controller is 3 weeks old so malfunction unlik...
@editor Will get back. Lots to try. Thanks to everyone Cliff
Yep that's good to hear. The heat curve issue that is. I thought the pump might be undersized but the company did a good amount of cals which I've r...
Thanks Mars Some good stuff in there The overshoot on KISS is probably nearer 2 degrees but I was trying to modulate at 19 degrees at the time in ...
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Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@jamespa Maybe so, but which would be the first to ‘bre...
By Toodles , 45 minutes ago
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RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 1 hour ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Posted by: @grahamf If you are considering phasi...
By Rob of York , 1 hour ago
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RE: Is it the house or the equipment?
Posted by: @springswood I'm working on passive ways ...
By Rob of York , 2 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
My first reaction is that these are prima facie much of...
By JamesPa , 7 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 21 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 , 23 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 , 3 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


