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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jul 25, 2025
Profile Activity
Topics: 16 / Replies: 2638
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?

I have yet to hear of a system that actually did work efficiently post installer commission. In fact I cant see how it can - no installer is going to...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Many people regard that as a requirement!

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

er, you cant have too much emitter capacity! You can have an imbalance where some parts of the house heat more than others but never too much. I...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

@gary @davidnolan22 I dont wish to go back over material you may already have covered, but its perhaps worth observing that another forum member ...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Smart TRV experiences (ideally integrating with Midea heat pump)

Many lsvs go from full off to full on in a fraction of a turn, they are basically isolation valves. There is a whole section on this (comparing diffe...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Nope. The problem is this: Most heat pumps have a modulation range of ~3:1. So if the heat pump is correctly sized at -2, with a house heat loss pr...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Auto Adapt Questions

It wasnt me that mentioned this, was someone else, I was only repeating what appeared to be a very plausible statement. Yup. Well at least y...

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

I have the same, so equally interested in the answer. I think its possible that both are correct depending on where they are located in the circuit...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Its not abnormal, as long as there isnt excess pipe noise its OK. Spot on! Not sure what 'helps' means in this context! Nothing wrong with ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Vaillant AroTherm Plus 7kW
4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 12
Views: 512
Reply
RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.

Somebody has to pay for their ignorance! In fairness there are some very good ones out there, as well as some poor ones. That's true of much of the...

4 months ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Ecodan Auto Adapt Questions

Thats good news Hopefully your obs today will clarify whats going on so you can tell the Mitsi engineer! The reflected heat from my south faci...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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