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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jul 29, 2025
Profile Activity
Topics: 16 / Replies: 2644
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RE: Getting the best out of a heat pump - is Homely a possible answer?

I wish I had the large slab that you have. Unfortunately my floors are either suspended wooden or uninsulated concrete. My house heat capacity i...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung heat pump sizing

It's interesting that you make this point, suggesting you think (I'm not disagreeing btw) that the gaps between heat pump capacities in the range of a...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung heat pump sizing

@johnmo well done for looking that up! I don't think I ever managed to find the detailed Samsung specs, but it's been a while since I looked! If th...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

Funny how simpler is often better. I have settled on running my heating 24*7 at same temp no setback, bedrooms slightly cooler than living rooms (by ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung heat pump sizing

@johnnyb very much in tune with the thoughts above and would advise against oversizing. The problem may be if you want the BUS grant as that require...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Commencing on an ASHP Installation Process

I think those are pretty much the standard figures that used to be quoted in mis3005-d (which now instead references a BS EN standard that I have yet ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

I think that maybe what the adia thermal system does, but as you say it's quite expensive and only works with some ashps Alternatively perhaps someo...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

Still not quite. As I read this the body adjusts for fixed flow when on (based on an adjustment made by the installer according to a table that doesn...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

Er - that description you posted says that the trv shuts off the flow when the room is at the set temperature, which is also what seems to happen in p...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

That's good to know - and in which case, adding anything fancy to the system to "automate" it sounds like (a) an unnecessary complication; and (b) lik...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

Is that really the case? Won’t the rate of heat loss in the room change as it cools/warms outside and thus what it is balanced for today at 1c isn’t ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

Almost but not quite a trv with remote sensor. A trv with or without a remote sensor operates principally, so far as I know, as an on off device (alb...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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