Page 27
Dryer Installation With Separate Exhaust (Preferred)
For ductwork less than 14 feet and 2 elbows equivalent and less than 0.6
inches static pressure.
NEVER exhaust the dryer into a chimney.
NEVER install wire mesh screen over the exhaust or
makeup air area.
NEVER exhaust into a wall, ceiling, or concealed space.
1.
Make-up air opening from outside the building may enter the
enclosure from the top or side walls. The area of the opening
should be equal to 4 to 6 times the sum of the dryer duct areas.
Provide 1 square foot for each 6 inches diameter; 2 square feet
for each 8 inches diameter; and 4 square feet for each 12
inches diameter.
2.
Enclosure (plenum) with service door. This separates the
dryer air from the room comfort air. If dryers use room air
instead of outside air, additional heat loss can be another 25
Btu/h for each cubic foot per minute (cfm) used.
3.
Heat loss into laundry room from dryer front panels is about
60 Btu/h per square foot.
DRYER INSTALLATION
WITH SEPARATE
EXHAUST (PREFERRED)
