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Last seen: Jul 6, 2026
@papahuhu We had an MCS audit on our PV and ASHP. Inspector flagged up some lagging and label deficiencies. Some weeks later, an engineer from the ins...
Hi @expatingermany , This sounds very similar to my system where recently we had the 'secondary' pump electrically disconnected and the 'onboard' pu...
Well I've had an interesting few days and would like to share my cautionary tale. My system was installed in Sept 25 under an eco 4 grant. Sparce in...
Hi @jamespa , Thanks for the reply - cautionary tale re adjustment. AT curve centred around 35C as per last post. Late evening not quite enough comf...
Hi @jamespa Thanks for the reply. I have read through the info and posts again. I am ignoring the Honeywell at the moment. I have activated the AT...
hi @martinrobinson @jamespa @majordennisbloodnok @editor So the Honeywell is just a colourful, temp activated on/ off switch for the ASHP, NOT an A...
Hi @martinrobinson , these are a couple of charts for my system showing DHW, FT, RT and AT. I have also included temps off Honeywell Home - BDR91 wi...
sorry should have used quotes: 15/02/2026 10:55 pm @jamespa Hi, Thanks for the reply. I would appreciate some assistance please. ...
Happy birthday
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Degrees of Separation
Latest Posts
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RE: Adding additional Solar Panels to a DC coupled battery system
Ive now managed to assemble most of the required items ...
By bontwoody , 3 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 14 hours ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 18 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 2 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 days ago
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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 , 5 days 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 , 5 days 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 , 5 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 5 days 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 , 6 days ago
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