Lenoxx Electronics Optima 3 FS - Manual (Page 21)

INSTALLATION
INSTALLING OPTIMA 3 INS (CONTINUED)
IMPORTANT- Make sure the chimney and firebox are clean and free of soot and ashes before installation begins. Fail-
ure to do so may result in the transfer of soot into the room by way of the room air blower. Do not block opening at front
of insert (below door).
♦ USA & Canada – Requires an approved noncombustible hearth or floor protector, 3/8” / (10 mm) millboard
or equivalent (k = .84, r = 1.19) to extend 6” / 150 mm to the front of the glass door.
PAGE 21
Full Chimney Reline
(Recommended for ALL chimney installations)
VENT TERMINATION WHEN LINER IS USED.
A section of pellet vent pipe is required at the top where
exposed to the elements (see illustration below).
Horizontal Vent (Direct Vent)
U.S.A. – The insert may
be installed as a Direct
Vent (horizontal vent
through the chimney
structure) in masonry
fireplaces if local codes
will permit.
Canada – Installing an
insert a s a Direct-Vent
is not allowed. The fire-
place chimney must be
fully relined from the
insert outlet to termina-
tion.
Listed Pellet Vent Cap
1' Section of
PL Vent
3" or 4" liner
(listed to UL 1777
or ULC S635)
Chase Cover
IN CANADA – Installing as a Horizontal Vent
is not allowed. The fireplace chimney must
be fully lined.
Approved Liner for Fac-
tory Built (ZC) Fireplaces
and Masonry Fireplaces
is 2100HT (degree F.)
liner listed to UL 1777 or
ULC S635.
Clean Out
Tee
Positive Flue
Connection
Recommended