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Last seen: May 16, 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...
Latest Posts
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RE: Setback savings - fact or fiction?
Short of watermarking every post and every chart with '...
By cathodeRay , 1 hour ago
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Hi, @david999. I have a Growatt inverter too, so I have...
By Majordennisbloodnok , 1 hour ago
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RE: Sizing an ASHP; Heat loss and kW
You can't measure heat loss with a website. But you ca...
By JamesPa , 14 hours ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 16 hours ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 19 hours ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 19 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
@chainreaction Agree with @broadsman , it seems many ...
By Batpred , 20 hours ago
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
By SUNNYSKIES , 20 hours ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 1 day ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 2 days ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
By GrahamF , 2 days ago
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 2 days ago
