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iancalderbank
@iancalderbank
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Prominent Member
Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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Reply
RE: Heat pump delta T too low - 2c

@william1066 a hopefully not entirely bonkers thought if 1mh2o is too much . Buy 2 and parallel them up. At half the flow each, about 0.15mh2o. They...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@heacol thanks, my bad , I missed giving you the most significant point . I have a gas boiler system at present with honeywell valves. I'm preparing m...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@heacol I'm not trying to cut corners or cost. The opposite. I'm trying to spec it right. I'm absolutely going to use a 3 port full bore for CH/DHW di...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@heacol thanks. those belimo's are pricey but I guess you pays your money and you takes your choice. I'm a few months away. so I can certainly wait. W...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@william1066 I too am looking at the zone valves question for a 14kw direct DIY build I'm planning. rapidly concluding honeywells are a really bad ide...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

@curlykatie you may well find that the wire out of the bottom of the switch goes into the immersion heater in the cylinder - just follow the wire. in ...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: My ASHP is running out of hot water

the immersion stat is underneath the white plastic cover for the immersion. Its usually a simple plastic rotary dial. something like this red one: ...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: My ASHP is running out of hot water

what I meant was where does outlet 2 on the control/pressure valve go. is it a) blocked off or b) going into a pipe. from one of the photos it looks l...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: My ASHP is running out of hot water

@curlykatie so that is a control group valve which is exactly as expected on a pressurised hot water cylinder orient this picture against it. numb...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: My ASHP is running out of hot water

@curlykatie you're looking in the mains water (not central heating) pipework around the cylinder for something like this (if there is one). its job...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Samsung ASHP scheduling help

@tomc - seconded. keen HA user here.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

@curlykatie its an exact trade off between the two options: having a secondary DHW recirculation loop (means you get HW out the taps instantly) vs not...

4 years ago
Forum
Domestic Hot Water & Cylinders
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