Specifications

DAKA 521FB Manual Page 12 of 32 January 2009
Rev. 3, June 2013
VIII. PLANNING YOUR INSTALLATION
C. CHIMNEY – continued
2) Chimney Options
a) Masonry – Before using an existing masonry
chimney, have the chimney inspected, cleaned
and make all necessary repairs before attaching
the furnace. The flue pipe and fittings you will
need to connect your furnace directly to a
masonry chimney are shown in FIG. 5. If the
flue pipe must go through a combustible wall or
ceiling before entering the masonry chimney,
consult a qualified mason or chimney dealer.
The installation must conform to all local building
and fire codes and the latest edition of the
National Association of Fire Protection (NFPA)
Publication 211. If there is a cleanout in the
base of the chimney, close it tightly. The
chimney flue pipe must not pass through an
attic or roof space, closet, or any concealed
space, or floor, ceiling, wall or combustible
construction. See FIG. 5.
b) Factory Built – Factory built chimneys are
generally stainless steel, insulated, multi-wall
pipes. Chimney must be listed to UL103 and
carry a rating of “HT” (High Temperature). The
top of the chimney must be at least three 3 feet
above the roof and be at least two 2 feet higher
than any point of the roof within ten feet – See
FIG. 6. A factory-built chimney must be
installed to the manufacturer’s specs.
If you have any questions regarding venting your
furnace, request a copy of the National Fire
Protection Association’s (NFPA) Publication 211
[Standard for Chimneys, Fireplaces, Vents &
Solid Fuel-based Appliances].
National Fire Protection Association
1 Battery March Park, Quincy MA 02169-7471,
1-617-770-3000 or online at www.nfpa.org.
NOTE:
This furnace must be connected to a minimum 6”
listed Type HT (High Temp) appliance-type chimney
or a code-compliant tile-lined masonry chimney.
Connection to a chimney flue serving another
appliance is prohibited.
FIG. 5
FIG. 6