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Last seen: Aug 1, 2026
I bought a new build property some 2 years ago. I was able to get most of the documents you cited above. However, it was a battle, and I had to get ...
I didn't appreciate that there was so much to a piece of plastic pipe. Done some additional research to find out more, concluding that: PEX-AL-PEX ...
@bontwoody @upnorthandpersonal Thank you for your replies.
I have added to this post the inside of the CU that Batpred has referenced above (it might be of help): From my side I am still working with my ...
Sorry if I have confused things. Here's a summary which I hope will help: Vaillant require this breaker: The installer is saying that the new b...
Batpred I have limited knowledge of electrics, but I believe you are saying its not a good idea to fit RCBO's of a different manufacturer in the same ...
It would appear that the installer has sent me an out of date spec document on the Vaillant heat pump. It now appears that I require a type B. T...
This looks OK, am I right?
I am currently at 37% RH and it's been at that level for most of the winter season. I believe it comes from the underfloor heating being on 24/7. M...
Is there any technical improvements/design changes in the Vaillant aroTherm?
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Degrees of Separation
Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 19 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 20 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 1 day ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago


