Twin coil HW cylinder - worth it?

[joth]

10 hours ago, d438a1 said:

I think that captures it? Question is...does option 2 and 3 still allow for grant?

The grant covers supply and install under a single contract for heatpump(s) sufficient to space heat and provide all dhw for "the entire property".

I think the clearest out if you want a modular system is to discount the garage or workshop as being part of the property. (If they aren't built / converted yet then clearly at this point you'd be fine)

 

 

 

[joth]

Just to expand on this, I had a trawl through the legislation and think you're fine (unusual disclaimer, IANAL etc): your options 1-3 are all allowable under the BUS.

 

https://www.legislation.gov.uk/uksi/2022/565/regulation/9 my emphasis:

 

(2) A heat pump meets the suitability criteria in relation to the eligible property F2... for which it is installed where—

(a)it provides heating—

(i)solely to that property, or to both that property and any related property, and

(ii)for the purpose of both space heating and hot water heating, using liquid as a medium for delivering that heat,

(b)it is capable of meeting the full space heating and hot water heating demands of that property, and

 

 

The key thing here is whether the outbuildings (workshop, annex) can be defined as  Related properties". So "The/That property" is just the main house, and the other buildings are related properties.

 

AFAICT the main criteria for related properties is they are not covered by the main property's EPC

https://www.legislation.gov.uk/uksi/2022/565/regulation/2

 

“related property”, in relation to an eligible property, F6... means any building or swimming pool which is used by, or available for the use of, an owner or occupier of that property and where the building, building unit or swimming pool is not covered by the valid energy performance certificate for that property;

 

 

 

 

 

[d438a1]

Ok thanks, plenty food for thought