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Last seen: Nov 7, 2026
@skyefarmer pleased you found it!
It might not be in the manual, mine was a rather innocuous third party 40mmx80mm brass fitting between the heat pump isolation valve and the heat pump...
I had a very similar problem with my valiant and it turned out to be a blocked filter. Unbeknown to me I have a very fine filter in addition to the m...
@anca1808 I have just reviewed the whole thread. In summary it seems you have several issues (undersized rads, inadequate insulation) which have b...
I played with a max heating temp but there is a world of difference between what you want it to do on a cool day in shoulder season and what you want ...
I've always regarded topping up heating systems as my job not a plumbers. My gas system needed topping up about twice per year and no way was I going ...
Hmm Before doing that I would want to be certain that there are no attendant liabilities related eg to planning permission or grants that the develo...
If you are thinking of heating on the immersion consider a solar diverter which precisely matches load to available power. I had one until I got an a...
I absolutely wouldn't remove the buffer altogether, I'd convert it to a volumiser. My suggestion above was intended to convey that sorry for not bein...
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Latest Posts
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RE: DIY powerflushing tutorial
This is what bacterial growth in UFH loops looks like. ...
By Pirate Rich , 27 minutes ago
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RE: Renewables & Heat Pumps in the News
Based on your insights into the differing statistics @c...
By Transparent , 55 minutes ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Hope no one minds a slight digression on this post. i h...
By kilgorexv , 1 hour ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 1 day ago
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RE: Heat Geek installations: share your experiences
@l8again fwiw my experience (Valiant but not with heat ...
By JamesPa , 1 day ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
@etchedpixels thank you for the advice paid cash all...
By Chilli304 , 2 days ago
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RE: Why don't people choose heat pumps?
Savings you need to consider versus the investment valu...
By EtchedPixels , 3 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders An interesting conversation to have ...
By Rob of York , 3 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes, in my case, the ISP hub is permanently there, they...
By Batpred , 3 days ago
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RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 3 days ago
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 3 days ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 3 days ago
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RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 4 days ago
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RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 5 days ago
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 6 days ago

