2
4.1
If the burner is to be mounted in an existing boiler or furnace, ensure that all fireside surfaces are clean
and in good condition. All doors, clean outs, cracks or other openings allowing excess air into the
combustion chamber should be tightly sealed, whether the burner is to be fired under positive or negative
Combustion Chamber conditions.
4.2
The burner can be mounted through a heat exchanger end wall or in the base of the boiler – see Figures
1 and 2. The opening for the burner blast tube should not be less than 6 ¼, 8 ¼, or 10 ¼ inches in
diameter (depending on the burner model) to allow easy removal of the burner. The gap between the
boiler opening and the blast tube should be sealed with non-asbestos, high temperature rope or Ka-O-
Wool. Where a new or replacement combustion chamber lining is to be used the chamber is to be built
using 2,300 degree F insulating firebrick or ceramic fiber blanket.
Figure 1. Mounting in Heat Exchanger
Figure 2. Mounting in Boiler Base
