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AdamK
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AdamK
@adamk
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Joined: Feb 23, 2025
Last seen: Oct 19, 2025
Profile Activity
Topics: 25 / Replies: 126
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RE: Help me keep the faith with my air source heat pump installation

just trying to roughly get an idea what price an install should be if the following has already been done. 1) upgraded some 15mm copper runs to 22mm...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: help sizing rads based on room by room heat loss

@jamespa so if i have a 1988w rad at 40c @-3.1 it will only be 509w?

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: help sizing rads based on room by room heat loss

@jamespa heat loss list on first post. it’s the one that says nearly 2kw, I’ve just split it into 2 rooms as we’re going to put a sliding wall betwe...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: help sizing rads based on room by room heat loss

@jamespa thanks for the info but I think I must have something wrong. The heat loss for the whole house is about 7.5kw. The room is only 3.756m x 3.68...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: help sizing rads based on room by room heat loss

can i ask then if i have a heat loss for a room of 1079w and a flow of 40c@-3.1c what wattage rad do i need to hit? cause at the moment im struggling ...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Help me keep the faith with my air source heat pump installation

@jamespa what I didn’t want to do was oversize too much then end up having the HP cycling. What I have noticed is most companies I’ve contacted want t...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

@jamespa I’ve had a few done most come out around 7kw so that’s probably about right, but the loss per room I’ve only got one and it’s been corrected ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Help me keep the faith with my air source heat pump installation

@jamespa I’m planning to try for 40c as that’s what my old installer was going to do. I will measure the rads and see where I need to upgrade. One of ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

tf heating and plumbing Visited today. They are suggesting a 2 port buffer/volumiser. Also said the rads would needs to be upgraded if needed otherwis...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

the training is not happening at any pace. they have a whole room with HP's of different brands in at my local college but no one to teach it, the gas...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant water pressure gauge vs Analogue gauge

just wondering if the UFH is creating some back pressure and the rad locksheilds are closed down too much so when the pump kicks in its pumping agains...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Help me keep the faith with my air source heat pump installation

now have 3 companies in line to quote that were on the Vaillant site as covering my area. think the nearest is 20 miles away.

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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