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Last seen: Sep 5, 2026
@old_scientist i dont but i want to be able to reasonbly replicate what an installer will produce so i can unserstand any proposals.
@andrewj we already have a 6kw inverter, 8.55kw of south facing panels, and 16.12 kw of signergy batteries. i am pretty sure its not cost effective to...
Just discovered a major flaw... been using the 99% temperature, not the 99.6!!!!! So instead of a -3 design temp, it should be -6.1. i have attached m...
Thank you all, i have made several adjustments based upon the advice given including bridging and going with the new MCs figure of 0.5 ACH. Also had a...
@rob-of-york Thanks, my gas useage does include the gas hob, and the hot water combi boiler, but i think leaving them in should be fine.
@rob-of-york Thank you for that, whilst familiar with the concept of bridging in terms of damp, never thought of it in terms of heating. i have been o...
@editor Thanks Mars, I have been enjoying playing with the formulae, gives me something to do on long night shifts. i actually really enjoying doing t...
@old_scientist i had a look at this, all my gas consumption for New Years Eve was 85kw. Thats the highest day for two years. Winters have been mild th...
@jamespa Also this coming winter I am going to run my combi system at as low as it will modulate and see how we get on.
@jamespa Hi James, the living/kitchen/dining room is around 40% of the property. My annual gas usage is 9300kw, of which i am estimating 170kw a month...
I used this heat loss calculator based on my worse day which was 85kw of gas, on a -3 day at 22 degrees. Temerature on the day in question was -3 unti...
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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 , 3 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 4 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 , 5 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 , 6 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 , 14 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 , 22 hours 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 , 2 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 , 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 , 3 days ago
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