MAINTAIN GASKET MATERIAL
As part of the annual maintenance of your furnace it is
important to inspect the gasket material (1” rope gasket)
around the inside of the firing door and ash pan door to
ensure proper sealing of the firebox.
The gasket material keeps added air from getting into the
firebox, which could lead to over-firing of the furnace and
causing excessive draft.
Fire Door Gasket
Ash Door Gasket
Maintenance
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Summary of Contents for BIG BJ90
Page 11: ...3 1 2 4 5 6 7 8 9 Furnace Features SJ125...
Page 13: ...1 2 3 4 5 6 7 Furnace Features BJ90 13...
Page 46: ...SUPER JACK SJ125 Exploded Views Parts Lists 46...
Page 48: ...BIG JACK BJ90 Exploded Views Parts Lists 48...
Page 53: ...Notes...
Page 54: ...Notes Notes...
Page 55: ...Notes...