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Last seen: Sep 19, 2024
@technogeek If your hot water cylinder has an immersion heater, you could try the same test using direct electric at a known COP of 1. I can't rem...
@iantelescope When trying to ascertain what is actually happening within a system, I often find it is useful to put values into the equations to see...
@jamespa I think that I remember reading that in much colder climes the preference would be for split systems rather than mono, or possibly GSHP's.
How warm are the radiators and do they remain warm? Are the radiators warm before the system changes to DHW heating? What is the temperature setting...
When water is open to the atmosphere the various gases within the atmosphere become dissolved into the water in a ratio of 35:1. Since the normal atmo...
If you don't have a copy of the installation manual, I would suggest that you Google the model number and download a copy.
I believe the major cause of magnetite (black ink) is as described below:- Magnetite, commonly referred to as sludge, is the black substance compris...
Don't worry, I obviously knew what you meant, but I still think it is important that the correct terminology is used so that there is little room for ...
Welcome to the forum. According to the wiring diagram shown on page 49 of the attached document, it would appear that the temperature sensor should ...
Please don't talk about AC Batteries - there is no such thing. The article included concerns a grid size solar PV and Battery Storage system, in a d...
@cookie197 Hi Cookie, welcome to the forum. It would be interesting to know about the grant system in Wales in comparison to the £5000 grant now b...
@sobo As I think has already been pointed out, heat pumps are noisier when they are working harder (producing hotter water or during the defrost cyc...
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Degrees of Separation
Latest Posts
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RE: Electricity price predictions
Iog is definitely a bit beta IMHO. I get no control at...
By JamesPa , 10 minutes ago
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HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
This is something I’ve been building for months, largel...
By Mars , 10 hours ago
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Does minimum system volume matter in the context of sim...
By Tony.Stolz , 13 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
I had a quick look and they are a little vague. They ...
By BlizzardGreen , 15 hours 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 , 23 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 , 1 day 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 , 2 days 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 , 2 days 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 , 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 , 4 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 , 4 days ago
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