What part of a dwelling counts as usable? In terms of heating zones.

[Sofija Dearden]

What part of a dwelling counts as usable? In terms of heating zones.

 

[SimonG]

All of the dwelling if it's a habitable room.

Maybe a bit more background to your question will help with an answer.

 

[snowhead]

Is this in relation to a Rented property, one for sale by you, one you're buying or one you own?

 

[centralheatking]

What part of a dwelling counts as usable? In terms of heating zones.

More info required for full answer. centralheatking