APPENDIX
Horizontal venting system (sealed combustion); X≥4" (102
mm)
X
Horizontal concentric system (sealed combustion)
2
1
2
1
Vertical venting system (sealed combustion); X > 12" (305
mm); Y 12" (305 mm) above maximum snow level or at least
24" (610 mm) whichever is great
X
65
65
RECYCLING AND DISPOSAL
APPENDIX
1
2