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cliffhanger
@cliffhanger
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Joined: Mar 2, 2025
Last seen: Sep 24, 2025
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Topics: 2 / Replies: 19
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

@jamespa All one can say is many thanks for the help from all and more importantly patience! Will now push on with pictures. I do have the manu...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Thanks. Yes I understand how the curve works. What's not clear is how can a low curve eg 0.3 that's right for the house temperature selected, but d...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

So just to be clear here. Even when the OAT drops below freezing a low heating curve should still translate to a high LWT? Perhaps I'm not seeing ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

@cathoderay Many thanks for the reply Yep. We're 250m up in the Cheviots in the Borders! I have none prior to central heating. We were...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Hi cathodeRay Can't pm you I haven't enough posts. I'm attaching the docs I have on heat loss. The controller is 3 weeks old so malfunction unlik...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

@editor Will get back. Lots to try. Thanks to everyone Cliff

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it KISS or constant?

Yep that's good to hear. The heat curve issue that is. I thought the pump might be undersized but the company did a good amount of cals which I've r...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is it KISS or constant?

Thanks Mars Some good stuff in there The overshoot on KISS is probably nearer 2 degrees but I was trying to modulate at 19 degrees at the time in ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Is it KISS or constant – weather compensation vs. set flow temperature?
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 30
Views: 5794
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