Large Attic Combinations Note: These combinations require 60 in. of vertical clearance where fan is to be installed.
Products HERS CFM Watts watt/CFM * HERS Venting 2 CFM/sqft. 3 CFM/sqft
STL Pro 7.0X 4962 773 0.16 6.93 2481 1654
STL Pro 7.0X + 2.5X 6096 969 0.16 6.93 + 2.56 3048 2032
STL Pro 7.0X + 3.3X 6663 1083 0.16 6.93 + 3.13 3332 2221
STL Pro 7.0X + 4.8X 7699 1263 0.16 6.93 + 4.17 3850 2566
STL Pro 7.0X + 5.5X 8168 1302 0.16 6.93 + 5.00 4084 2723
STL Pro 7.0X + 6.0X 8878 1370 0.15 6.93 + 5.37 4439 2959
STL Pro 7.0X + 7.0X 9924 1546 0.16 6.93 + 6.93 4962 3308