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Last seen: Apr 16, 2026
@kev1964-irl At the outset just to say I am not a plumber or engineer so I'm on this site to learn! The discussions from the community of experts and ...
@cathoderay Thanks
@editor @kev1964-irl This discussion might be best had offline. Can you advise how we do this through the forum rather than swapping emails publicly? ...
@kev1964-irl Just seeing your post now. I'm also based in Ireland and have been through the process of solar (2021) and heat pump (2023). I too was in...
@editor @mikef For Comparison I have a Viessmann Vitocal 151-A which will have been installed 2 years next month. So far... Compressor Hours 5804 and ...
Just to add to the data collection.... East coast of Ireland. 185 m2 house - 100mm external insulation, 325mm loft insulation, 100mm underfloor insu...
For reference, I have a 10 kWh Viessmann 151-A installed almost exactly 1 year and am getting a SCOP of 4.7. Would be really interested to see how you...
@transparent Hope this is useful. (Note to self: clear weeds and paint gate!)
@transparent Having done some research on different HPs and manufacturers, I decided I wanted a Viessmann unit. However, the number of accredited inst...
Forum Handle: GC61 Manufacturer: Viessmann Model: Vitocal 151-A Type: ASHP Arrangement: Mono Area of Country: Ireland Home Type: 2-Storey...
Hi all, Gerry here. Located on the east coast of Ireland. I have a: . 4.2 kWh PV system (SE facing) . 40 kWh Nissan Leaf . newly-installed 10 k...
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Latest Posts
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RE: Siting of the external sensor on a heatpump
Our boiler came with the house.. We found all sorts of ...
By Batpred , 17 minutes ago
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I think the mystery is in the first question; the senso...
By GutoFfowc , 59 minutes 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 , 2 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 , 3 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day 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 , 1 day 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 , 2 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 , 3 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago



