Before Installing Boiler - Weil-McLain 78 Manual

Before Installing Boiler

Installation must comply with:
Before selecting boiler location:
Provide combustion and ventilation
air openings:
Grating – Min.
12" above avg.
snowline
GRADE
Areaway
Figure 1 Combustion and Ventilation Air
Openings Boiler Room Below Grade
Note:
Size of areaway
and grating to be
equal to or
greater than total
louver area.
Louver
Boiler room
floor
Louver – Min.
12" above avg.
snowline
GRADE
Figure 2 Combustion and Ventilation Air
Openings Boiler Room Partially or Completely
Above Grade
Note:
Duct size
equal to total
louver area
Boiler room
floor