Methods for constructing a combustion chamber access door and associated apparatus
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United States of America Patent
Stats
-
Apr 29, 2003
Grant Date -
Nov 21, 2002
app pub date -
Mar 4, 2002
filing date -
May 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An inner combustion chamber access door member for a fuel-fired water heater has main and pilot burner structures respectively supported thereon by gas supply tubes sealingly extending through and anchored to the door member, and is further provided with a wire pass-through tube and a sight glass opening. After the door member has been externally secured to a side wall portion of the water heater over an access opening therein, with the main and pilot burner structures disposed in the combustion chamber of the water heater, a lighting wand is extended through the sight glass opening to light and test the burners. Subsequently, a sight glass structure is snapped into the sight glass opening to complete the installation of the door/burner assembly. Thermocouple and igniter wires extend through the pass-through tube, and are sealed therein by a laterally split resilient cylindrical sealing plug member.
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