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Scalextrix
@scalextrix
Member
Estimable Member
Joined: Sep 26, 2024
Last seen: Sep 11, 2025
Profile Activity
Topics: 6 / Replies: 74
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RE: Plate heat exchanger considerations

@bontwoody thanks, I see they are supposed to be 90% efficient or more. So maybe if I use that as a rule of thumb, a 45C flow from the ASHP woul...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Plate heat exchanger considerations

No, the pipe sizing is very adequate, 15mm to rads and 22mm primary for each floor in the building. None of it needs changing from a sizing perspecti...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Plate heat exchanger considerations
4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 16
Views: 718
Reply
RE: MHHS and Heat Pump compatibility

@toodles to be clear I don't know if there will be a requirement, I was trying to find that out.

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MHHS and Heat Pump compatibility

@toodles thanks, that's useful information about Homely. What Im really asking is if there will be a requirement for new heat pumps to be compat...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
MHHS and Heat Pump compatibility
5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 4
Views: 359
Reply
RE: Should I make my radiators smaller?

@jamespa thanks for the reply, so really in this case we have to reduce the flow to the radiator to achieve it. In my specific case the oversize rad...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Should I make my radiators smaller?
6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 3
Views: 610
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

The current boiler has a single 22mm pipe, but as you suggest that splits into a 22mm feed for upstairs and a 22mm feed for downstairs. That split oc...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

Exactly, they said 8kW for us, I need to try and see if that's legit. I think it probably is, but it's getting that emitted into the places we need i...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

This is exactly why I'm trying to do a real world test simulation. Our 1960s house has construction of different types in different places and it's i...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

Yeah, this isn't roof or wall insulation, bit hard to explain. Imagine the joists that separate the ground floor ceiling from the upper storey floor, ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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