Owner`s manual

8
Vent Termination
The RF24 is approved for Vertical Co-Linear Termination Only. Two 3” diameter
liners are required from top to bottom. The vent liners must be connected to the proper
collars (intake and exhaust) or the unit will not operate properly. The method of fl ashing
will depend on whether the liners are installed into a rectangular masonry or round
factory-built solid-fuel burning chimney. It is important to seal the gap at the top
of the chimney in either case to avoid convective air loss up the chimney. The
integrity of the air-cooled function of factory-built chimney systems must be maintained
when installing terminations. Termination of the chimney may need to be completed
after the RF24 fi rebox is installed and the slack vent liner pulled up—see Section
Installing Firebox.
Existing Square Chimneys
559CLT Co-Linear Terminal and 559SFK Square Flashing Kit are
required. Cut fl ashing kit to size. Allow extra around perimeter for drip
edge to be formed on site. Seal fl ashing to top of chimney using sealant
(not supplied). Fasten terminal to fl ashing using sheet metal screws as
shown.
559SFK Flashing
(cut to required
size and form
drip edge on site)
559CLT Terminal
Fasten to Flashing
with Sheet Metal
Screws (3 locations)
2 - 3” Flex Liners
18”
18”
Existing Round Factory-Built Chimneys
The 559CLT terminal is designed to fi t existing 7” or 8” diameter factory-built round chimneys without requiring
additional fl ashing. Ensure the installation of the terminal seals off the top of the chimney space to avoid convective
air loss. The diagrams below show a typical terminal installation for an 8” diameter air-cooled chimney system.
Existing Air-Cooled Chimney
(Factory-Built Fireplaces)
Remove Top
Portion of
Terminal
Maintain Air-Cooled
Function of Existing
Chimney System
Install 2 - 3” dia.
Flex Liners
Identify
which
Liner is
Exhaust
EXH.
Connect Liners to
Corresponding
Collar on Terminal
using Sheet Metal
Screws (longer
collar is exhaust
collar)
EXH
7-5/8” dia.
10” dia.
10”
11
”
559CLT
Fasten Terminal
to Flashing
(3 locations)
Ensure Flashing
Remains over
Air-Cooled
Openings
559CLT Termination
Ensure Exhaust
Portion of Chimney
is Sealed at Top