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

@william1066 I think you've misread the diagram. you read across at 1 l/sec and select any kvs line within the shaded area. My purple line. higher k...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay esphome can run with encryption. default is non encrypted but its just a config option. wifi, I get it, it does depend on the quality o...

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

@william1066 I'm exactly same as you. keen DIYer' . I'd prefer it if the filters came with 28mm connections, but those are all too small bore inside. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay there are different ways to physically do this: it depends on what is where. you need something that is basically a PC (a large one, a s...

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

@william1066 3.6m3/h with a DP of 0.22mh20 means its not relying on a monster pump. the chart is here I was comparing to some of the usual suspect ...

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

@william1066 doing some component research over the weekend. spirotech 1 1/4 " pressure loss spec took some hunting down but its 2.2kpa (0.22 m...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

@katcesca you've missed something. you do not need to have an EV to access TOU tariffs like octopus Go (12p/unit 4hr offpeak) - despite what some of t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

TLDR: I nearly fell off my chair when I saw your cost for radiators and fittings. That said, it matches with the ballpark that a number of "ASHP com...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Convector options for a small kitchen

thats exactly what I've done already. This pushes air through the center of a slightly undersized radiator and makes a noticeable difference to its ou...

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Heat pump delta T too low - 2c

@heacol so if I'm going to replumb in a couple of weeks will you be selling by that point, or just get a bellimo from JTM?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 15mm piping and the need for flow separation

@william1066 are saying you able to adjust the HP's target DT directly on the samsung? If as per the OP, you knew your system wasn't able to cope wi...

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

@william1066 I think the bellimo valves that @heacol recommends are back in stock at JTM, I'm tempted to grab one for my build before he gets them all...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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