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Firebox Door Frame
Principles of the Firebox Door Frame
To provide a small edge that will seal into the firedoor
gasket to provide an airtight seal.
Maintenance / result
Keep the door frame cleaned down to the steel at all times. Failure to do
so results in a build up of creosote, resulting in a barrier to an airtight seal,
air leaks and premature gasket replacement.
Ceramic
Principles of the Ceramic
Once heated, the ceramic holds heat for a long period of time. This
creates a warm firebox between cycles. Because of this heat, when the
combustion air blower starts, the fire inside the firebox can re-ignite and reach the smoke burning temperature
of 1100 degrees Fahrenheit much faster.
Maintenance/Result
Wood should not be thrown into the firebox in a rough manner. Do not scrape the ceramic as the ceramic can
become dislodged, damaged or break. If ceramic pieces are broken, they should be replaced as soon as
possible.
Removal and Replacement
1) Let the fire go out and allow the ashes to cool completely.
Remove the ashes from the firebox.
2) Crawl into the firebox if you can not reach the damaged
ceramic.
3) Remove the nut holding the broken ceramic.
4) Using a pry-bar if needed, remove the broken ceramic.
5) Replace the broken ceramic and replace the nut.
Ceramic
Firebox Door Frame
ABSOLUTELY NO FIRE IN THE FIREBOX WHEN PERFORMING
THIS REPAIR. DO NOT PERFORM THIS REPAIR WHEN UNIT
WATER TEMPERATURE IS UNSAFE. ALWAYS WEAR PROPER
PERSONAL PROTECTIVE EQUIPMENT.
Summary of Contents for 400-4S
Page 1: ...Outdoor Furnaces TM SAVE THESE INSTRUCTIONS...
Page 10: ...5 HEATMOR Stainless Steel Outdoor Furnace Model 400 4S Chapter 1...
Page 73: ...68...
Page 88: ...83 PROBLEM CAUSE SOLUTION PROCEDURE...
Page 92: ...87 Outdoor Furnaces...
Page 93: ...88 NOTES...
Page 94: ...89 wiring diagram...
Page 95: ...90 Revised Manual on 07 11 12...