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JamesPa

@jamespa

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Illustrious Member

Joined: Apr 3, 2023
Last seen: Nov 12, 2025

Topics: 18 / Replies: 3340

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RE: 4 port buffer tank connections

If they did in the past but dont now then there are at least three contractual questions that arise 1. If they insisted on a buffer as a condition o...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: 4 port buffer tank connections

I would support that sentiment. One conventional way as I mentioned earlier is sensors at one third and two thirds up the vessel. However buffer...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: 4 port buffer tank connections

Do they? That's not what I observe from the several manuals I have read (albeit in some cases fairly quickly, I admit) over the past 2 years. I wond...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Ecodan 6kW - is it "cycling", or normal operation?

It does sound like the house has a large thermal lag. Bear in mind that the thermal lag of the house can be long even if the radiators can cool quick...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Not a good January? My heat pump used 840 KWh of electricity

Apologies, I thought you were complaining about the comparison between the two months. My figures on the temperature differences were for Birmingham ...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

If only others took the same approach we would see far, far fewer posts on this forum (and others) complaining about poor performance, and indeed far ...

9 months ago

Forum

Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls

RE: 4 port buffer tank connections

100% agreed, I am a firm believer in the liberal use of occams razor!. I was just saying it (balancing a buffer) can be done, although it seems, judg...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: 4 port buffer tank connections

... particularly if you have TRVs and zone valves randomly switching on and off, which may well have been part of the 'justification' for the buffer t...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Not a good January? My heat pump used 840 KWh of electricity

1022kWh here, 200sq m detached 1930s property with piecemeal fabric improvements, loss ~7kW @-2. Figure is from the (Vaillant) heat pump itself not i...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Not a good January? My heat pump used 840 KWh of electricity

You don't say where you are, but I checked the climate for January in central England Jan 2024 vs Jan 2025. Jan 2025 was significantly (16%) colder...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Just one room not reaching desired temperature

designer is talking rubbish. See page 14 of this document It sounds like its moving in the right direction. TRVs may not have the same effect ...

9 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Antifreeze corrosive to copper pipe rubber rings?

Just use antifreeze valves instead of glycol, then there cant be an issue.

9 months ago

Forum