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Last seen: Aug 8, 2026
Fair enough, particularly the last comment. However for me it depends on how op is approaching this. If he wants to diagnose and fix it himself th...
@antonical Im not sure I entirely follow you but in summary are you saying that the house is now heating satisfactorily? Your 'overnight heating'...
I would be willing to bet that, with a sensible value for ACH it will work out at 4-8kW, ie not a value that helps us a lot given the uncertainties, a...
Thank you for your response. Assuming that the house has been built to current building regs, and once the insulation defects are fixed, it'm a lit...
Horizontal cylinders are fundamentally less effective than vertical cylinders because, in a vertical cylinder, the water 'stratifies' so that the hot ...
@newby Sorry to hear about your problems Can I just check my understanding. Firstly a question about the situation: Is this 'built for...
Well thats clearly nonsense. If a £280 pump failed in a boiler you would replace the pump, as you would in an ASHP. Sadly that's true of many th...
The fact that when the demand (ie house loss) is less than the minimum that the heat pump can turn down to' the heat pump will cycle on and off so tha...
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Degrees of Separation
Latest Posts
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RE: Electricity price predictions
Demand Flexibility Services appears to conflict with pr...
By Transparent , 21 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 , 6 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 , 16 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 , 19 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 , 24 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 , 1 day 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
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