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JamesPa

@jamespa

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Joined: Apr 3, 2023
Last seen: Nov 10, 2025

Topics: 18 / Replies: 3327

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RE: Help me keep the faith with my air source heat pump installation

Well at least its well insulated, but Im not sure that insulation is fit for external use. Others may recognise it as either internal or external gra...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Much of that is true in principle, but its not likely to be revolutionary. You are also correct about the fact that heat pumps don't reach theoreti...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Seeking Help for In-Principle Quote to fix a botched heat pump installation by Heat Geek Installer

I didn't want to say that, bus since you have said it now, I agree. This was well overpriced unless there is something about this installation that h...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

I think so but I don't know for certain. A cascade as grant describes it should cover 4-20kW without having to cycle, which again hopefully should be...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Fair enough. As I suggested above there are all sorts of games that could be played, but which are easily doable depends on the capability of the co...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Incidentally this is the sort of thig you can do if you can measure your consumption, in this case from half hourly gas meter readings. Its how I siz...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Yes assuming the pipework permits this. Not sure this is the most efficient way to run even in the shoulder season though, probably better off just o...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Honestly I doubt, based on your oil consumption** you are on the tipping point between 17kW and 2*10kW, much more likely you are on the tipping point ...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Help me keep the faith with my air source heat pump installation

Cant hear a thing with my 7kW Vaillant* so something is wrong. Can you tell whether its the water pump, the compressor or (unlikely) the fan. Its p...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Midea ASHP – how to set weather compensation

It's totally dependent on the lock shield, some are terrible and don't have any control until you get to the last quarter turn before they are closed,...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is a Valliant Inline 6kW heater a BUS buster?

Vat free applies to supply and install only no DIY. Get a list of recommended installers from Grant, email them all with the same requir...

2 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Buffers, hot water and cooling

@dgclimatecontrol thanks, that's helpful.

2 months ago

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