Lennox EVB125 Installation Instructions Manual page 11

Before installing liner,
ensure that the damper
plate is open and
secure to prevent the
damper plate from fall-
ing down and crushing
the liner.
Secure fl ex liner to
collar using a Hose
Clamp
Draft Hood
Figure 14
9) After liner is secured to draft hood collar, use the tool provided to slide
it forward (aligning with guide brackets) until the screw hole in the spill
tube aligns with the screw hole in the top of the fi rebox (see Figure 12).
Secure two parts in place with removed screw. While pulling draft hood
forward, push the insert.
While pushing the unit
back into place, use the
tool provided to pull the
draft hood forward until
screw hole in spill tube
aligns with screw hole
in top of the fi rebox.
Draft hood sliding tool
(provided)
Figure 15
Draft Hood
Guide Bracket
Draft hood
sliding tool
(provided)
Figure 16
Vent
Flex
Liner
Spill Tube
Draft Hood
Guide
Bracket
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Masonry Fireplace Installation Diagram
Vent Kits, HO906 (25')
& H0907 (35') includes:
1 ea. fl ex liner
1 ea. fl ashing
1 ea. collar
2 ea. hose clamps
(see table 9)
The fl exible vent pipe must NOT
be allowed to sag behind insert
or in fi replace fl ue.
Masonry chimneys may take
various contours which the
fl exible liners will accomodate.
However, keep the fl exible liner as
STRAIGHT as possible and avoid
unnecessary bending.
4" diameter Vent, type
B-Vent or listed gas fuel
type vent liner listed to
UL 1777
Remove or lock
damper open
Read Fireplace
Requirements on
page 4
Liner Requirements:
Exhaust Vent = 4" Dia.
B-Vent or Liner listed to
UL 1777
Vertical Height Min.
= 12 ft. (3.66 M)
Vertical Height Max.
= 40 ft. (10.7 M)
Under no circumstances, may separate sections of
concentric fl exible vent pipe be joined together.
Figure 17
Liner
Vertical
Term. Cap
Collar
2 Hose
Clamps
Termination
Flashing
Cap
IMPORTANT
11