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Joined: Jan 20, 2022
Last seen: Sep 24, 2025
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Topics: 16 / Replies: 2475
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RE: Heat loss calculators and spread sheets

Two points before we go further... 1. A house which doesn't have an operational foul water system is uninhabitable, can't be sold on the open market...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

@sicky may I ask about the foul water drainage shown on the plan? What happened to the rectangular access cover when the conservatory was built? ...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

That's good. I was about to ask how you intended adding UFH pipes to an existing (100mm) concrete pad. You need to be asking them about the grout/...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

If you want more insulation in the 'garage' roof, consider putting a complete layer on top of what's already there. It shouldn't add much weight bec...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

Yes they probably are! As this was originally built as a garage, it's possible that they are 'standard' steel roof trusses. Alternatively, they co...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

Well I'm a self-builder and understand plans, so let's give this a go! The big clue is the date of the Drawing at bottom right.It's Nov 2005. So t...

9 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Hot water tank losing temperature quickly: Daikin Altherma 4kW

Great! Keep checking the pressure. If it increases when the system is warm, and reduces when colder, then you have air in the system. If it slowly...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hot water tank losing temperature quickly: Daikin Altherma 4kW

Ah... I didn't get the sense of proportion from the photo! Rough rule of thumb for mass of tank is 1Kg per litre of water...... but that stated capa...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: GivEnergy 2025 forthcoming batteries and inverters

Highlights which might be significant here are: There is to be a new All-in-One inverter/battery combo, which is yet un-named.The battery capacity i...

9 months ago
Forum
Energy Storage
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RE: Hot water tank losing temperature quickly: Daikin Altherma 4kW

This is what I can see in the attic: All of these brass fittings need insulation. Even for a tank within the thermal envelope of the house, you ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Placing objects next to an outdoor air source heat pump unit – what are the rules?

There are no 'regulations' as such @sandy ... expect the rules of physics, which basically come down to common sense. Personally I wouldn't be happ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Legionnaires' Disease & Home Hot Water: Understanding Risks and Prevention

Sadly @johnr the chlorination of our water supplies isn't adequate to eradicate legionella. Read also what I wrote in another topic about the Crypto...

9 months ago
Forum
Domestic Hot Water & Cylinders
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