Allied Air A80UH1E Installation Instructions Manual page 20

Gas Pipe Capacity - ft³/hr (m³/hr)
Note: Capacity given in cubic feet (m³) of gas per hour and based on 06.0 specific gravity gas.
Table 6
NOTE: BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET
Figure 26
Horizontal Applications Possible Gas Piping Configurations
NOTE: BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET
Figure 27
Page 20 of 34 Issue 1624 507330-01