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Last seen: Jan 28, 2026
I believe this is in reference to what they originally designed which was as an example: A Stelrad Concord Lo-line 296x1600 v A Eskimo 200x1694 ...
Thanks Toodles, this is the ongoing back and forth unfortunately with the builder, plumber and now heat specialist. According to the builder the heat...
Hi both, the rads heat when the ASHP runs, I don't believe there's any issue there, this was something the heat specialist checked (bled, check TRVs o...
Well I'm now currently stuck in a who's liable for installing the buffer tank for this install / myself querying is this 100% going to rectify the iss...
Not posted for a little while as been busy with other things. I've kept the system on Grant's default WC settings. It's been mostly quite mild so h...
I believe it’s all been balanced. Chap said they’re all filling up well once got air out system. Other half has moaned it’s now too warm so dropping...
Heat specialist came yesterday. Initial impression was downstairs rads seemed physically small. And by comparison felt upstairs was oversized. Ov...
Starting to see that even though downstairs calls for heat, when other zones don’t the ASHP turns off due to equal temp in and out. Soon as I upped un...
I'm going with: 2102 - 40C 2103 - 35C That's around 38C at 7C outside. This morning, combined with a bit too much of a drop for upstairs aft...
Oh definately. The house proportionally the said downstairs zone is also the largest, with 2 rooms equal to underfloor zone. I think the hall and land...
Changing the secondary pump to speed 1/3 seems to have had quite an impact. Downstairs can hit 21c consistently. However effectively almost running 24...
Yeah, I've set it back to 45C to see how it goes today/overnight. It's 3C outside. Downstairs zone is showing 20.2C. Probe in living room 19.4C. I...
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Latest Posts
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RE: Electricity price predictions
Interesting read from NESO on their Demand Flexibility ...
By Old_Scientist , 4 minutes ago
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RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 2 hours ago
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 12 hours ago
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RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 15 hours ago
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RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 20 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
One of the other mods has just reminded me that @ashp-b...
By Majordennisbloodnok , 21 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
My ideal install would have my battery installed before...
By BlizzardGreen , 2 days ago
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RE: PV and battery long payback - sense check query
@old_scientist I have now drafted 2 replies - both have...
By DavidB , 3 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: adrian Manufacturer: Appliandirect.co....
By Adrian , 3 days ago
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 4 days ago
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RE: Digest of UK Energy Statistics
@jeff Yes my brother in Oz told me of that charge year...
By Jancold , 4 days ago



