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Marzipan71
Marzipan71
@marzipan71
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Joined: Nov 12, 2022
Last seen: Jan 26, 2026
Profile Activity
Topics: 4 / Replies: 114
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Reply
RE: DHW heat loss through pumps.

Ah - you just hit on a problem - the boy has a switch in his bathroom for the recirc pump - on is no problem, but turning it off is another matter ent...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

Ah but you do pee with the light on (I assume) and I don't need the recirc pump when I'm peeing. Extractor fan might work yes unless its one of those ...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

Yes, this is how it works. As I mentioned above, our water is now heated to mid-40's and arrives at that temp at the shower head, where without the re...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

Ha ha yes - fair point. I was referring not to the gap between the hot water arriving (and without my pump it's 4 minutes for hot water to arrive - or...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

Exactly, yes. Now if my shower valve was internet-connected, and I had a WiFi recirc pump switch on the DIN rail, I could have the recirc pump start a...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

@jamespa Yes I'm sure you're right. As I say, I'd like to replace the mechanical DIN rail timer with a wifi & Alexa controlled version - that way,...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

@jamespa Yes, that's what we both said above I believe. When the pump is running in my case (for four hours in the morning, not constantly or 24x7) it...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

I'd agree with the more rapid 'loss' of hot water with the recirc pump running compared with not, but don't have any data to back this up - just a fee...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: DHW heat loss through pumps.

@johnnyb Hi - not done any testing but we still have the recirc pump on timer for those few hours in the morning, and I run it manually when the boy n...

3 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Electricity price predictions

Thanks - that's interesting. I've been looking at these 12 month fixed rate deals over the past few years and they always seem to offer a lower than c...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Electricity price predictions

Hi there - thanks for reply. Yes, of course the focus here is mostly UK electricity prices and as an ex-pat I recall how my bills were constructed whe...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Electricity price predictions

I'm out in Italy and the current wholesale price of electricity here is ca. 11 or 12c per kWh. This is what I pay our supplier each month (monthly ave...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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