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Old_Scientist
@old_scientist
Member
Prominent Member
Joined: Jun 16, 2024
Last seen: Oct 14, 2026
Topics: 9 / Replies: 566
Reply
RE: Next steps on my ASHP journey: Radiators and Pipework

Brilliant - you have done exactly what I did (with significant help pointing me in the right direction) when planning our ASHP installation. We repl...

1 month ago
Reply
RE: 7kW EV Charger Options Advice

@rusty I'm following with interest as we too are considering an EV, although you are further ahead in this journey having actually ordered one. We h...

1 month ago
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RE: Adding additional Solar Panels to a DC coupled battery system

@transparent thank you for your reply above. As always, very clear and concise, I have learnt new stuff (that RCDs are bi-directional) and I now hav...

1 month ago
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RE: Adding additional Solar Panels to a DC coupled battery system

@transparent I have a question about the electrical connection for my micro-inverter. It's designed to be a plug-in device, but I'd rather make a prop...

2 months ago
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RE: Adding additional Solar Panels to a DC coupled battery system

@bontwoody I'm following your endeavours with interest, as I have an outbuilding with east/west roof, and room for two panels on each aspect in landsc...

2 months ago
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RE: How Accurate Is My DIY Heat Loss Calculation?

Do you really see days where the average temperature is -6.1C over the whole day? You may see a minimum temperature of -6.1C, but I doubt the average ...

2 months ago
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RE: Who's your electricity provider and what's your tariff?

@papahuhu I prefer to look at it simplistically. We drive around 8k miles per year, so at 4 miles/kWh that's around 2000kWh of electricity added to ...

2 months ago
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RE: Who's your electricity provider and what's your tariff?

I've not given it much/any thought. I did look at the prices, and if I were switching back to Cosy now I'd stay on the variable. Not worth signing on ...

2 months ago
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RE: Who's your electricity provider and what's your tariff?

Yes, looks like very slight increases in the unit rate (presumably the headline 4% increases are offset by the removal of VAT), and a reduction to the...

2 months ago
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RE: How Accurate Is My DIY Heat Loss Calculation?

D'oh - of course. I shouldn't post before my brain is fully awake!  

2 months ago
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RE: How Accurate Is My DIY Heat Loss Calculation?

85kWh of gas usage, divided by 24 gives 3.54kW and adjusted for 85% boiler efficiency gives a heat loss of 4.16kWh. Allowing for DHW and cooking bring...

2 months ago
Reply
RE: How Accurate Is My DIY Heat Loss Calculation?

Any idea how efficient your gas boiler is? Is it a 50 year old Baxi Burmuda back boiler from the 1960's that's probably around 50% efficient, or a mod...

2 months ago
Page 4 / 48
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