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Last seen: Oct 26, 2026
Posted by: @jamespa The regulations are here Regulation 9(2) b is the key one Thanks for the pointer to the regulations, in particular: 9(2)...
@bash @jamespa Thanks both for the practical advice. Just to check I'm understanding this right. The game plan would be as follows: Turn the fl...
@bash Thanks, its good to hear about your experience. My concern with the pipework is along very similar lines. There is no way of knowing the actua...
Posted by @jamespa It would be interesting at some point to develop a list and estimates for all of them. Below I've considered the impact of t...
Posted by: @jamespa At this point its probably worth pointing out, for future reference, that degree days are not exactly the same as an offset ave...
@jamespa I just worked on the last post as you were also doing so. Good to see that we are on the same page. Your explanation captures exactly what ...
@cathoderay Well I managed to make a mistake with this myself! However, a simple thought experiment convinced me of the correct formulation. Cons...
We have a 6.56kW solar PV system (16x 410W panels) installed in March 2023. It uses a LuxPower 5kW hybrid inverter, which can provide up to 8kW output...
A refinement of the degree-day method The degree day method of heat loss calculation is very useful because it only requires smart meter data on dai...
@cathoderay Most of the time our hot water heating runs every 48 hours rather than every 24, since with relatively low use it takes that long for t...
Posted by: @cathoderay I'm not too worried about the DHW tank losses, the tank is like yours in an airing cupboard, but the airing cupboard is in th...
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Latest Posts
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RE: Electrical works for air to air heat pump
Best, honest advice here will come from @ashp-bobba!
By Mars , 7 minutes ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels I agree, the modelling can never be tha...
By Rob of York , 33 minutes ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews I have read you latest response re buffer ...
By JamesPa , 13 hours ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 24 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 3 days 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 , 3 days 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 , 3 days 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 , 3 days ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 4 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 4 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 , 5 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 , 5 days ago
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 5 days ago
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