Operating instructions

Heatmax Furnace Installation and Operation Manual
66
Note that secondary air tubes (A) can be replaced without removing the baffle board (B).
Important Notes:
The air tubes are identified for placement as follows:
Model Type of tube
HEATMAX
Front 106 holes of 0.109"
Middle front 53 holes of 0.109’’
Middle rear 53 holes of 0.109’’
Rear 53 holes of 0.109’’