Greenheck IGX - Page 11

11
Furnace Flue
Size Outlet
100 - 150 4 inch
200 - 400 6 inch
Standard Vertical Venting
A1
A=12 inch minimum
A1 = 12 inch minimum, but should
size according to expected
snow depth.
Standard Indoor Venting
EXHAUST
Exhaust Vent
Terminal
Air Inlet
Building Roof
Venting Instructions:
Standard Indoor Units
A
Table 1
All measurements shown are diameters.