"Jon W" wrote in message ...
I've just found out that I don't need to buy a balanced flue stove as I have
a chimney (conventional flue). However in the brochure it uses the term
suitably lined. The chimney is about 70 years old, brick, and is lined with
cement (probably lime) which is now starting to flake off in places.

I'm investigating the same thing at the moment - looking for a Gas
stove to put into the fireplace in a london Terrace (probably 120
years old). I'm pretty certain we'd need the chimney relined (or more
likely a flue installed inside it).

I'm starting to wonder if we would be better getting a balanced flue
model and just venting it through the back of the chimney to the gap
between us and next door rather than getting a flue put up to roof
level. we could then just 'seal' the chimney. Fitting would
certainly be easier (and probably cheaper) - are there any
disadvantages?