I've had two contradictory opinions provided - one says that despite having TRVs in every room I should have a centrally located, wall based 'stat, the other says the latter isn't needed. My layman-logic says I do, since it will actually switch the boiler off, which TRVs won't (can't), but what do I know!
Advice, DIYnot-sters, please.
Advice, DIYnot-sters, please.