180m borehole cost per metre for ground source heat pump

[saveasteading]

2 hours ago, ReedRichards said:

sound of somebody else's heat pump

If the neighbours are close and you are caring, then a gap-boarded fence could be built to baffle the sideways noise. Air can wiggle through while noise bounces back or just disappears

[Nickfromwales]

8 hours ago, saveasteading said:

If the neighbours are close and you are caring, then a gap-boarded fence could be built to baffle the sideways noise. Air can wiggle through while noise bounces back or just disappears

What I proposed to do for one client, where there was a pair of heat pumps; one for house and one for the swimming pool. Didn’t need them in the end, as the pool temp was pretty much kept at a constant (indoor pool within its own airtight envelope, and a near passive residence).

If this is all designed properly before laying a single ‘brick’ then the heat pumps can be almost inaudible. Client could hear a neighbour’s combi boiler flue 30m away over the house heat pump when it was -6°C outside, with us standing next to the HP.

 

Pool one was timed strategically, and would only boost at very early morning on cheap rate or midday off peak PV excess.

 

Design, design, design. 
 

As this thread mentions a retrofit into a refurbished dwelling, then the question needs to be, what target is the AT score going to be, how well insulated, and how good (efficient) an MVHR system is going in.

 

Refurbs are a pita to get up to a high standard, and this needs serious consideration. 

[Nickfromwales]

14 hours ago, Strak said:

It's a refurb with an extension and loft conversion, pretty significant changes to the layout of most of the house.

PHPP is probably OTT for you, and typically reserved for identifying overheating risks in a passive (or thereabouts) new build.

 

You may simply wish to explore A/C for the attic and maybe some bedrooms (up to 4 units can run off one external unit) as these offer both heat and cool with great CoP (cheap running costs for a lot of comfort). This strategy will allow you to blanket the heat from UFH, whilst maintaining individual temps in the rooms that matter the most (cool bedrooms at night in a stinking hot summer are simply ‘bliss’).

[Strak]

13 hours ago, Nickfromwales said:

PHPP is probably OTT for you, and typically reserved for identifying overheating risks in a passive (or thereabouts) new build.

 

You may simply wish to explore A/C for the attic and maybe some bedrooms (up to 4 units can run off one external unit) as these offer both heat and cool with great CoP (cheap running costs for a lot of comfort). This strategy will allow you to blanket the heat from UFH, whilst maintaining individual temps in the rooms that matter the most (cool bedrooms at night in a stinking hot summer are simply ‘bliss’).

Thanks for the suggestion, I'm not sure I have room for another unit outside though - assuming you mean this sort of thing when you mention the external unit? https://www.appliancesdirect.co.uk/p/iqool24b/tcl-iqool24b-air-conditioner

[Nickfromwales]

On 29/04/2024 at 14:00, Strak said:

Thanks for the suggestion, I'm not sure I have room for another unit outside though - assuming you mean this sort of thing when you mention the external unit? https://www.appliancesdirect.co.uk/p/iqool24b/tcl-iqool24b-air-conditioner

Yup. One of those.