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Jøtul F 35 130074_1 6/22
1.6 Chimney Connector
Use 6” single wall or listed 6” double-wall stovepipe to connect
the stove to the chimney. Single wall stovepipe must be black
steel or stainless steel and have a minimum thickness of 24
gauge. Do not use aluminum or galvanized steel pipe for
chimney connection - these materials are not suitable for use
with solid fuel. Attach the flue collar to the chimney connection
using 2 self-drilling screws found in the miscellaneous kit.
Follow these guidelines:
• Do not use chimney connector as a chimney. It is intended
only as a connection device to a code approved chimney.
• Each connector section must be oriented with the male
(crimped) end pointing toward the stove. See fig. 3.
• Secure all connector joints with three sheet metal screws.
• For the best performance, the chimney connector should be
as short and direct as possible, including no more than two
90° elbows.
• The maximum vertical run of single wall stovepipe should
not exceed 10 ft.
• The maximum horizontal run should not exceed 3 ft. with a
1/4” rise per foot. Under no circumstance should horizontal
pipe be installed slanting down toward the chimney.
• No part of the chimney connector may pass through an attic
or roof space, closet or other concealed space, or through a
floor or ceiling. All sections of the chimney connectors must
be accessible for cleaning.
• Where passage through a wall or partition of combustible
construction is desired, the installation must conform with
NFPA 211 or CAN/CSA-B365, and is also addressed in this
manual.
• Do not connect this stove to a chimney flue serving another
appliance.
Figure 3. Chimney connector orientation.
2.0 Chimney Requirements
There are two types of approved chimneys:
1. A code-approved masonry chimney with a ceramic tile or
listed steel flue liner.
2. A prefabricated chimney complying with the requirements
for Type HT (2100°F) chimneys per UL 103 or ULC S629.
An NFPA 211 Level 1 chimney inspection should be performed
prior to installation. Depending on specific circumstances and the
outcome of the Level 1 inspection it may be determined that a
Level 2 or 3 inspection is also necessary.
The chimney size should not be less than the cross-sectional
area of the flue collar, and not more than three times greater
than the cross-sectional area of the flue collar. If the chimney
flue is outdoors, its cross-sectional area may not exceed two
times greater than the stove flue collar. See also Sect. 3.2.
When selecting a chimney type and the location for the
chimney in the house, keep this in mind: It is the chimney that
makes the stove work - not the stove that makes the chimney
work. This is because a chimney actually creates a suction, called
“draft” which pulls air through the stove.
Several factors aect draft: chimney height, cross-sectional
area (size), and temperature of the chimney, as well as the prox-
imity of surrounding trees or buildings.
A short exterior masonry chimney will give the poorest per-
formance because it will be dicult to warm the flue and sustain
the temperatures necessary to maintain draft strength. In ex-
tremely cold climates, it may be necessary to reline the chimney
or extend the height to help establish draft.
A tall, interior masonry chimney is easier to keep warm and
will perform well under a variety of weather and environmental
conditions.
The following guidelines give the necessary chimney require-
ments based on the national code (ANSI-NFPA 211 for the
US. And CSA CAN-B365 for Canada). However, many local
codes dier from the national code to take into account climate,
altitude, or other factors. Your local building inspector is the final
approving authority. Consult them prior to installation.
Do not connect the stove to any air distribution duct or system.
2.1 Masonry Chimneys
Follow these guidelines when installing the Jøtul F 35 into a
masonry chimney:
• The masonry chimney must have a fireclay liner or equivalent,
with a minimum thickness of 5/8”
(14 mm) and must be installed with refractory mortar. There
must be at least 1/2”air space between the flue liner and
chimney wall.
• The fireclay flue liner must have a nominal size of
8” X 8”, and should not be larger than 8”X 12”. A round
fireclay liner must have a minimum inside diameter of 6” and
maximum inside diameter of 8”.