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JamesPa
JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Oct 10, 2026
Profile Activity
Topics: 27 / Replies: 5479
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Reply
RE: Hitachi Yutaki SCombi Heat Pump - Owners

@sim0n0 Sorry to hear that. Putting the past aside would you like to describe the current problems and tell us a bit about your system and house in...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

Maybe. It says 'outdoor evaporating temperature' (not refrigerant temperature) - its not clear what that means and the graph seems to define a region...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old ASHP

The dominant loud noise is the compressor or fan which you expect to be working at max during defrost. The background rattle could just be ice, ice ...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Curious that it reduces the flow rate at higher flow temp. I wonder what the logic is of that? If it were looking to maintain a specific DT then it ...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I'm not so sure this is a great surprise, there is not much it can do about DT unless it can ramp up the water pump speed, which at some point it will...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Battery with existing PV - regulations
11 months ago
Forum
Energy Storage
Replies: 14
Views: 3278
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson   Noted. At least you now have a confirmed route forward and a warm house. That, in itself, is a step forward however frustrating ...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Or just commission a plumber to do the replumbing? As soon as you touch it your installer will argue that it voids the warranty and I doubt any thir...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

So sort of progress, but...are you certain its going to be OK when it gets cold again? Obviously thats the case, it always is! OK well at le...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 10kw heat pump run in 24*7 data?

Mostly house comfort! The overall temperature will for sure continue to fluctuate still a bit, due to things like wind and solar gain. You need to...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 10kw heat pump run in 24*7 data?

Thats very comparable to my experience. Do be patient as you get closer, it takes time to get the heat curve right and zones/radiators perfectly bala...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
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