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Lakey
@lakey
Member
Eminent Member
116 kWhs
Joined: Feb 16, 2025
Last seen: Mar 5, 2025
Profile Activity
Topics: 2 / Replies: 15
AllTopicsReplies
Reply
RE: DHW Efficiency

@jamespa @transparent, Thank you both! What do you mean by an extra active component? Surely it's the same, just the location of the heat exchanger...

7 days ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW Efficiency

@transparent thank you! I was planning to turn it down from 55 myself and monitor the daily changeover so I could work out how best to minimise...

7 days ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW Efficiency

@old_scientist Thank you! Right, so I shouldn't consider the manufacturers stated or estimated values when comparing my quotes, they're basically all ...

1 week ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW Efficiency

@judith thanks! I think Eon basically haven't bothered to work out then DHW COP for any pump or design presented, which is slightly concerning... Howe...

1 week ago
Forum
Domestic Hot Water & Cylinders
Topic
DHW Efficiency
1 week ago
Forum
Domestic Hot Water & Cylinders
Replies: 10
Views: 143
Reply
RE: Heat loss calculators and spread sheets

@jamespa yes I think I've downloaded half hourly from Octopus, I think they gave it in gas m3 though... I can't be certain of the exact schedule as ...

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

@jamespa I have approx 20 months of gas energy usage. DHW usage is limited, occasional washing up, baby/toddler baths and occasionally showers. We had...

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

@sicky 72m2 for the whole downstairs, it was very much a rough guestimate on price when I asked about other options instead of rads.

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

@jamespa yes thanks, I've been quoted a min SCOP of 3.60, so as long as I could get cheaper electric than 22p I think it starts to pay it back. Anothe...

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

@jamespa I had one company design at 55 because I was struggling for radiator space... I've had others pull out because I couldn't heat the room prope...

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

@jamespa my room heat loss is approx 2.4-3 kW (house 7-8 kW) depending on who's done/what tool they've used. The room is a complicated extension with ...

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

@jamespa I think I need between 2.4 kW and 3kW over 2 600mm spaces for design conditions, so 21 internal and -3 OAT. I currently run at 18 in winter, ...

3 weeks ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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