Burnham 101008-01R1-2/07 manual Clearances from Vent Piping to Combustible Construction

TABLE 4.2: CLEARANCES FROM VENT PIPING TO COMBUSTIBLE CONSTRUCTION

TYPE OF VENT PIPE	PIPE DIRECTION	ENCLOSURE	MINIMUM CLEARANCE
			TO COMBUSTIBLE
			MATERIAL
60/100mm	VERTICAL OR	ENCLOSED ON ALL FOUR SIDES	0”
CONCENTRIC VENTING	HORIZONTAL
HEAT FAB SAF-T VENT		AT LEAST ONE SIDE OPEN,
PROTECH FASNSEAL	VERTICAL OR		1”
		COMBUSTIBLE MATERIAL ON A
Z-FLEX Z-VENT III	HORIZONTAL
		MAXIMUM OF THREE SIDES
FLEX-L STAR-34
HEAT FAB SAF-T VENT
PROTECH FASNSEAL	HORIZONTAL OR VERTICAL	ENCLOSED ON ALL FOUR SIDES	2-1/2”
Z-FLEX Z-VENT III	WITH OFFSETS
FLEX-L STAR-34
HEAT FAB SAF-T VENT
PROTECH FASNSEAL	VERTICAL WITH NO OFFSETS	ENCLOSED ON ALL FOUR SIDES	2-1/2”
Z-FLEX Z-VENT III
FLEX-L STAR-34

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