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HarryRea
@harryrea
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Joined: Apr 30, 2025
Last seen: May 14, 2025
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Topics: 0 / Replies: 18
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RE: Yes, the "zoning with ASHP" topic again...

James, On your question: Please explain why a higher flow rate is inefficient and undermines control. When a single pump serves multiple zones, ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Yes, the "zoning with ASHP" topic again...

James, Your questions cut right to the core of why these discussions matter. One thing I’ve noticed over the years — and this thread really highli...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

@jamespa Whether zoning is needed depends on how the occupants use the space, the layout of the house, and how heat losses vary between areas. It’s n...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Yes, the "zoning with ASHP" topic again...

The biggest mistake in zoning is basing the zones on superficial factors, such as dividing areas by North, South, East, West, or even upstairs and dow...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

You’re absolutely right that many past attempts at zoning and hydraulic separation have failed to deliver the desired results. Poor results, short-cyc...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

Hi Colin — you’ve clearly thought deeply about the system design, and your questions reflect exactly the kinds of practical challenges that are often ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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