Rebuilding a small Fisher (so it says on the right door) , and have no info,
nor can I find any internet reference to this particular model.
"4/29/85 HA" stamped on steel tape inside door tops.
20X23 with double doors, glass inserts.
Air feeds are above and below door flange, consisting of narrow sliding plates.
Any suggestions as to air setting protocol for optimal burn much appreciated, as top and bottom
air feed likely have different dynamics starting and running.
Somewhat surprised there is no firebox baffle, save for a small disc drop-mounted from interior
flue exit. The firebrick retaining clips would afford a proper ledge for a 17.75" X 11" 1/4" steel
plate that would cover the top step-up chamber area and still leave plenty of exit throat in front,
as it would still be dropped enough, and not restrict the net firebox terribly.
Is that a sound or dangerous scheme, one that has been tried, or complete lunacy?
Also, in replacing firebrick splits, I find that the widths from different sources vary from
4" to 4 1/2 ". Not that it really matters, as I have to make brick cuts regardless, but it would
make sense to have those cut inserts as wide as possible.
Have seen reference to "low density" firebrick, but no supplier I spoke with was familiar with the term.
Much obliged for any commentary.
nor can I find any internet reference to this particular model.
"4/29/85 HA" stamped on steel tape inside door tops.
20X23 with double doors, glass inserts.
Air feeds are above and below door flange, consisting of narrow sliding plates.
Any suggestions as to air setting protocol for optimal burn much appreciated, as top and bottom
air feed likely have different dynamics starting and running.
Somewhat surprised there is no firebox baffle, save for a small disc drop-mounted from interior
flue exit. The firebrick retaining clips would afford a proper ledge for a 17.75" X 11" 1/4" steel
plate that would cover the top step-up chamber area and still leave plenty of exit throat in front,
as it would still be dropped enough, and not restrict the net firebox terribly.
Is that a sound or dangerous scheme, one that has been tried, or complete lunacy?
Also, in replacing firebrick splits, I find that the widths from different sources vary from
4" to 4 1/2 ". Not that it really matters, as I have to make brick cuts regardless, but it would
make sense to have those cut inserts as wide as possible.
Have seen reference to "low density" firebrick, but no supplier I spoke with was familiar with the term.
Much obliged for any commentary.
