Flue Pipe And Barometric Draft Control - Beckett CG15 Manual

Flue Pipe and Barometric Draft Control

The flue pipe should be same size as the breech
connection on the appliance (see Figure 5 and
Figure 6 ). For modern units this should cause no
problem in sizing the flue pipe.
The flue pipe must have an upward pitch toward the
chimney of at least 1/4" per foot of length. It should fit
tightly and should not project into the chimney.
Figure 5 — Venting Single Appliance with Power Gas Burner
BEST
Barometric Draft Control
Flue Pipe (90° or 45°)
Heating Unit
Barometric
Draft Control
Not
Recommended
Poor location for Draft Regulator,
due to combustion noise
10 — Section: Inspect & Prepare Installation Site
A barometric draft control is required. It shall be a
double-acting type, agency recognized for use with gas
vent systems.
Please reference appliance instruction for chimney size.
Chimney liners may be required by local code.
Chimney
Chimney Liner
Barometric
Draft Control
Not
Recommended
Must maintain boiler flue pipe size
to chimney for single appliances.
Recommended
No square breeching.
Barometric
Draft Control
Recommended
Draft Regulator should not be
installed in a bullheaded tee.
CG15, CG25, CG50 Burner Manual, Form No. 6104BCG50
Not
Not