Prepare boiler location — air openings, Gold cga gas-fired water boiler — boiler manual, Air opening options – Weil-McLain Gold CGa User Manual
Page 10: Air openings must be provided

GOLD CGa Gas-Fired Water Boiler — Boiler Manual
10
Part Number 550-101-009/0107
Figure 5
Air from outdoors — horizontal ducts
Figure 4
Air from outdoors — vertical ducts
Figure 2
Air openings to interior spaces
Figure 3
Air directly through outside wall
Air opening options
Two openings — Air supply from inside the building
✷
1. If the building is of
unusually tight construction
(see definition, next
page), the
building must also be provided with air openings directly
to the outside
, sized and located per Figure 3, Figure 4 or Figure 5.
. Buildings of typical construction should provide adequate combustion
air from natural infiltration, so additional air openings to the building
are not required.
3. See Figure . Provide
two openings
through the interior wall, within
1 inches of the ceiling and the floor, sized per Figure .
Two openings — Air supply directly from outside
✷
1. Air openings must be directly through an outside wall, or into a space
that connects directly to the outside (such as a ventilated attic or crawl
space, for example).
. See Figure 3 —
Openings directly through an outside wall
— provide
two openings
within 1 inches of the ceiling and the floor, sized per
Figure 3.
3. See Figure 4 —
Air supplied through vertical ducts
— provide
two
openings
terminated within 1 inches of the ceiling and the floor, sized
per Figure 4.
4. See Figure 5 —
Air supplied through horizontal ducts
— provide
two openings
within 1 inches of the floor and the ceiling, sized per
Figure 5.
Prepare boiler location — air openings
1e
Air openings must be provided
Combustion air and ventilation opela4 BDC 10 0 ActualText