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Last seen: Oct 18, 2026
@johnbroome if it is not the pressure in the expansion vessel then just look for a slow leak somewhere, top up as needed.
@jamespa oh this is very good results on your system, yes, its just for fun and in house training but I am experimenting a few things. 1) I...
@johnbroome `yes, worth checking bladder in expansion vessel for sure.
@johnbroome perhaps, does it rise in pressure when heated and then drop when off?
can you see here it not like a set of steps every 20 mins, it runs flat for 2 or 3 hrs. I also currently have a Vaillant that is running 808hrs for ...
Please see attached graph from 8.5kW Ecodan serving a 244m2 hose new build 2025. see how the return flow is steady. This is dissipating it heat so i...
Great this is open loop so surely the heating should remain on constantly? Or until it hits the target temp from the tcc? Looking at your graph yo...
So hear I am trying to explain there are several reasons the ASHP can pause, UFH says stop so it pauses, ASHP flow DT overshoot so the ASHP can no lon...
@patch321 ok, so if the ASHP heating "Play symbol" switches to "II" pause and the pumps stop that is fine it is just cycling and thinks the demand is ...
Greenline IVT Now Worcester Bosch have an inbuilt 3kw booster that you want to check is not kicking in all the time, we have been removing these syste...
If this is true and you zone off a floor this system will not work at 11.2kW
@patch321 how new is your home, is it 2024/2025?
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Degrees of Separation
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 37 seconds 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 , 1 hour 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 , 2 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 , 10 hours ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
The shoulder months are very difficult to judge COP on ...
By scrchngwsl , 11 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 , 18 hours ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 1 day 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...
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
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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 , 2 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 , 2 days ago
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