Crown Boiler BWC151 manual Clearances From Vent Piping To Combustible Construction

Table 4.2: Clearances From Vent Piping To Combustible Construction

			MINIMUM CLEARANCE
			TO COMBUSTIBLE
TYPE OF VENT PIPE	PIPE DIRECTION	ENCLOSURE	MATERIAL
80/125 and 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
METAL-FAB CORR/GUARD
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
METAL-FAB CORR/GUARD
HEAT FAB SAF-T VENT
PROTECH FASNSEAL	VERTICAL WITH NO OFFSETS	ENCLOSED ON ALL FOUR SIDES	2-1/2”
Z-FLEX Z-VENT III
METAL-FAB CORR/GUARD

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