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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Jul 23, 2025
Topics: 5 / Replies: 496
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RE: Low Loss Header is losing 1.5c from flow temperature

@iancalderbank thanks Ian yes there is a drop in flow temp across the LLH but there is a more or less equal rise in return temp across the LLH. Thes...

2 years ago
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RE: Low Loss Header is losing 1.5c from flow temperature

Earlier post… from 4 months ago Can anyone help with some maths on estimating percentage of energy loss of DT….? After a summer break we are no...

2 years ago
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RE: Heat pump delta T too low - 2c

Thanks For your help... There are a few characteristics which appear to differ from one HP make to another HP make. In this case the relevant charac...

2 years ago
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RE: Heat pump delta T too low - 2c

Interesting.... we also have a Secondary pump. However both pumps are external and adjusted manually to reach the desired deltaT however this can vary...

2 years ago
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RE: Heat pump delta T too low - 2c

That’s interesting so it sounds like it allows the HP to modulate to a lower output? It’s a little similar to the Mitsubishi Auto adaptive function.

2 years ago
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RE: Heat pump delta T too low - 2c

Hi Ant87Im trying to understand how various manufacturers address control of DeltaT. Some heat pumps operate with external primary circulating pumps a...

2 years ago
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RE: Low loss header

hi @batalto I’m interested in what you did in the end. Did you manage to remove your low loss header? What was the layout you chose. I’m thinking of l...

2 years ago
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RE: How to turn ASHP heating off!?

Hi @tufty, If you’ve already prohibited the heating and you don’t live in a night freeze risk at this time of the year then why not just switch the ...

2 years ago
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RE: How to turn ASHP heating off!?

Hi @tufty there’s not a lot to be sure about when some info is estimated by ecodan program unfortunately. I think it’s as important to know what infor...

2 years ago
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RE: Jokes and fun posts about heat pumps and renewables

My heat pump installer was so impressed with the energy saving capabilities of the new generation circulating pump he installed 2 of them for me. He s...

2 years ago
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RE: How to turn ASHP heating off!?

Hi @tufty It was handy to skim read some of your earlier posts to learn what equipment your system is using and what kind of thermostat you had. I ...

2 years ago
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RE: How to turn ASHP heating off!?

Hi I’ve just been reading a few of your earlier posts so I can see you’ve been getting familiar with quite a bit of your ecodan settings already. With...

2 years ago
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