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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...
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Latest Posts
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RE: How will removing the standing charge on gas bills benefit heat pumps?
I'm not sure it makes much of a difference to heat-pump...
By Temperature_Gradient , 6 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 6 hours ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 8 hours ago
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RE: New Build 3 Phase or 1Phase
We are on three phase power because it's an enormous li...
By EtchedPixels , 8 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 17 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 1 day ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 2 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 2 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 2 days ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 2 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york I must admit that when we had a Daikin hea...
By Toodles , 2 days ago
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 3 days ago
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RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
By dansus , 3 days ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
By Rob of York , 3 days ago
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