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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 20, 2025
Profile Activity
Topics: 18 / Replies: 3118
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Reply
RE: Replacing Refrigerant on Mitsubishi Heat Pump

Commercial aircon people would normally do this in the UK, I imagine same in Portugal. Does it actually need doing?

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

Indeed. With a battery its presumably the battery controller that does all the heavy lifting with load optimisation, so I'm not sure Havenwise helps...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

Strictly they should be insulated (building regs I believe) to stop them 'leaching' heat from the tank, unless of course you want the heat for somethi...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

Delighted to hear this went well. It looks very neat The only comment I would make about the installation is that pipework within 1m of the DHW tan...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffers, hot water and cooling

Thats presumably heat pump DT, what about radiator DT and, importantly, temp diff between flow from heat pump and flow to rads (ie temp diff across th...

3 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Is your heat pump insured?

... and incorrect given the wording you quote. I bet they would lose if you challenged it in court or through the ombudsman. As you say It seem...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is your heat pump insured?

If it says heating system it should cover you for damage unless there is an exclusion. I would challenge them if they claim otherwise, then keep a re...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is your heat pump insured?

Are you sure its not covered by 'central heating system' or such wording. I contacted mine (which also does not mention heat pumps) and they confirme...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Difficult positioning of air source heat pump

@rikiarn Delighted to hear that the install went well. It looks neat. That buffer tank looks like its got only 2 connections, which is also w...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffers, hot water and cooling

The principal reason that heat pumps have minimum flow rate specifications is in order to ensure that heat can be transported away from the compressor...

3 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Buffers, hot water and cooling

It is very unlikely to break, but of course it just might if there is something unusual about your plumbing. Its obviously your choice whether to (a)...

3 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Buffers, hot water and cooling

Unfortunately even with hydraulic separation you do need to worry about flow rates unless you are happy to increase operating costs by 15%, because un...

3 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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