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Last seen: Dec 10, 2025
The display on your remote wired controller indicates that you are using an external thermostat and so the room temperature displayed will have no eff...
@jamespa Thank you for your very helpful insights. I have been looking afresh at the important effect of oversizing of a heat pump. On the face of ...
@jamespa I do apologise for a really crass error. You are absolutely right that 24kWh of energy produced at a COP of 4 would require 6 kWh of consumpt...
@lickofpaint You will find that there are at least two schools of thought about the way that heat pumps should be run. There is the low and slow scho...
Sorry, but it is true! If 24 kWh are required to supply the energy that the house loses for the whole 24 hrs, then 18 hours at a COP of 4 requires a c...
@johnmo Thanks for an interesting topic. I have been looking at Severn Trent's figures for my postcode's water quality. Average pH is 8.39 (Range 7.93...
I thought it was his external stat that he couldn't turn up above 25C - setting FSV 2091 & 2092 to 0 (not use) means that he will be using the Sam...
@jamespa I have slightly lost the plot regarding what the aim of further testing is, now that the planned reconfiguration is unlikely to happen. How...
The leaving water temperature is constantly displayed on the wired remote controller, irrespective of whether the compressor or the water pump is on o...
I think options 1-4 operate in identical ways for FSV 2091, 2092 and 2093 Option 1 - compressor can be turned off only by the stat. If LWT rises abo...
Please see my previous post - Ian will always be using weather compensation, whichever thermostat he chooses, so don't despair!
There has sometimes been some confusion over what is controlling the Samsung heat pump behind the different displays on the wired remote controller. T...
Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
@cathoderay Very valid points and I agree with your sta...
By ian33a , 42 minutes 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 hour ago
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RE: Setback savings - fact or fiction?
@cathoderay - thats great. Is there any possibility ...
By JamesPa , 2 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 3 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 12 hours 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 , 14 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 19 hours 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 , 22 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
By Broadsman , 23 hours 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 , 1 day ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 1 day ago
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RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
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RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
By Deltona , 1 day ago
