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Last seen: Nov 12, 2026
My reading is this: Its headed 'pre sale' and says its for use 'in conjunction with MIS 3005D.' MIS 3005D specifies that a heat load calculation m...
That all sounds plausible. Neither heat pump nor boiler manufacturers seem to be particularly precise about what these sort of functions do. The obj...
Forum Handle: @jamespa Manufacturer: Vaillant Model: Arotherm Plus 7kW Type: ASHP Arrangement: Mono Area of Country: Southern England Home...
So So far as I can tell absolutely no control available on my Vaillant, it kicks in at 4C It switches on the heating (typically periodically or a...
Occams razor comes to mind here. In any good system design every component has a purpose. If the purpose has little or no value then the same is tru...
These are all very good questions. Unfortunately most people are reliant on installers to do the 'design' and decide what valves are (or are not) put...
PSPICE I think, it seems highly likely that a heat pump system, including the house, can be described in electronic terms. Cant see the average plumb...
That looks like a tiny buffer plumbed with 4 ports and no temperature sensor to allow the heat pump to equalise flow rates, as well as quite a lot of ...
Thats not at all silly (actually its very sensible), so long as you disconnect the feed to ensure you dont risk burning out the motor. What do you ...
Sorry but there is no way I can tell from the photo what they are doing/controlling and there are several possibilities. Nor can I tell whether conne...
Can you confirm the implication that you have two zone valves and a diverter valve (three in total) and are you sure both hive and neomits stats are c...
Sorry Im getting mixed up whose house is getting too hot and which heat pump they have! Same principles apply however, the idea is to get the water ...
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Degrees of Separation
Latest Posts
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
By David , 2 hours ago
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
By David , 2 hours ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 3 hours ago
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 6 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 8 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
By EtchedPixels , 9 hours ago
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RE: Why don't people choose heat pumps?
Fair enough. I guess I was thinking of pipes that run ...
By JamesPa , 9 hours ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 13 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 14 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 17 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
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