On Sun, 18 Mar 2018 20:18:06 +0000, Andy Burns
wrote:

Scott wrote:

I live in a top floor flat. If I turn off my heating, will this
increase my downstairs neighbour's gas bill? :-)

It'd increase yours more if they turned theirs off ...

Interesting, because my former neighbour had no central heating and I
have noticed a definite warming effect on my flat since heating was
installed downstairs.