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Last seen: Sep 6, 2026
@macfxd LLH = Low Loss Header - it's on the right of your 2nd picture, and has 4 connections. The two on the left are the flow/return from your ASHP...
My HP is set to "not supply any heat" above 19C external temp i.e. that's the top end of the WCC and above that it'll not run the pump. This isn't "of...
Hi, and welcome to the forums. Your installation looks nicely insulated, and according to the Grant standards with a LLH involved (whether this is g...
I was already fairly interested in low-carbon impact alternatives, and has just moved into a house with an ancient LPG boiler. The existing LPG tanks ...
I have just switched my home insurance to Aviva, from LV. To echo what @technogeek said a while back, their policy wording makes no mention of "boiler...
@crimson Hi. About 20 (30?) years ago it was important that the TRV was on the flow side of the rad, and there was an arrow on the TRV body to show wh...
My figures thus far (just for heating and DHW). Installation in April 2023, but only gathered figures from June. Month kWh Average Outdoor T...
"You need a gas boiler, mate" "The nearest gas pipe is 15 miles away" "..." "..." "Yeah, so you need a gas boiler."
House is a converted bungalow, downstairs being around 100sqm; upstairs 40sqm (just 2 bedrooms up there). Downstairs is mainly open plan, with living ...
I've looked through all 4 documents they send me for 'boiler', 'heating', 'air', 'pump', and can't find any specific reference, apart from saying that...
@allyfish Not to de-rail this topic (so I'll probably post results - if any - on a new topic) but I've just started trialling a scheduled 2°C drop of ...
@tobyg Just to buck the trend, I'd go for the Grant. Now, I have a Grant 10kW and it's proved quite tricky to set-up and get what's needed out of it, ...
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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 , 52 minutes 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 , 3 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 3 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 , 5 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 , 6 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 , 1 day 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 , 2 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 , 2 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 , 3 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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