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from EricP contains these words:



Correct. Baxi did an excellent fireplace with up to four pipes going
to each house wall and all terminating in a chamber under the
fireplace. The idea was that any prevailing wind provided forced
draughts to the base of the fire.

That was their recommended installation practice.

Sadly the controls were a bit lacking and you got anything from a
blast furnace of a windy day to a peat fire on a silent day.

Depended on situation

Emptying them was rather difficult as well.

The basic ones were difficult. They also came with rotating asboxes or,
like the one I have, an outside firedoor to empty the ash.

They were normally put into a new build as it went up due to the
pipeing.

Easy enough to put into existing property. This house went up in 1844
and didn't have a Baxi until 1978. And it has 3' thick stone walls,
fwiw.