Exhaust system requirements, continued, Fire Hazard

Exhaust system requirements, continued

- FIRE HAZARD - A clothes dryer must be exhausted outdoors. Do not exhaust dryer into a chimney, a wall, a ceiling, an attic, a crawl space or any concealed space of a building. A clothes dryer produces combustible lint. If the dryer is not exhausted outdoors, some ﬁne lint will be expelled into the laundry area. An accumulation of lint in any area of the home can create a health and ﬁre hazard.

The dryer must be connected to an exhaust outdoors. Regularly inspect the outdoor exhaust opening and remove any accumulation of lint around the outdoor exhaust opening and in the surrounding area.

- FIRE HAZARD -

•Do not allow combustible materials (for example: clothing, draperies/curtains, paper) to come in contact with exhaust system. The dryer MUST NOT be exhausted into a chim- ney, a wall, a ceiling, or any concealed space of a building which can accumulate lint, resulting in a ﬁre hazard.

•Do not screen the exhaust ends of the vent system, or use any screws, rivets or other fasteners that extend into the duct to assemble the exhaust system. Lint can become caught in the screen, on the screws or rivets, clogging the duct work and creating a ﬁre hazard as well as increasing drying times. Use an approved vent hood to terminate the duct outdoors, and seal all joints with duct tape. All male duct pipe ﬁttings MUST be installed downstream with the ﬂow of air.

- FIRE HAZARD - Exceeding the length of duct pipe or number of elbows allowed in the “MAXIMUM LENGTH” charts can cause an accumulation of lint in the ex- haust system. Plugging the system could create a ﬁre hazard, as well as increase drying times.

		MAXIMUM LENGTH
Number	of 4” (10.2cm) Rigid Metal Duct
		VENT HOOD TYPE
		(Preferred)
of 90°
turns
4”			2.5”
(10.2cm)		louvered	(6.35cm)
0	60 ft. (18.3 m)		48 ft. (14.6 m)
1	52 ft. (15.9 m)		40 ft. (12.2 m)
2	44 ft. (13.5 m)		32 ft. (9.8 m)
3	32 ft. (9.8 m)		24 ft. (7.3 m)
4	28 ft. (9.5 m)		16 ft. (4.9 m)