HiWe have just pulled out an old clay fireback used for coal
(regular type fireplace opening).
We are going to increase the size of the opening
(not a great deal - flue/throat will be checked for spillage),
and insert a very heavy old log burning basket, similar to
a Cromwell basket. The basket has a 'fireback' fitted.
This basket will sit inside a brick housing, like you'd find
in an old pub.
MY QUESTION;
Considering the heat factor, what is the best ratio of
mortar mix for the bricks.
The old bricks for the fire surround and attached to the clay
fireback are a sandy colour.
Does that have a bearing on it - should it be a overly sandy mix?
Many thanks in advance, Stephen
