14
SECTION 5 – CHIMNEY
Chimney Height
The minimum recommended chimney length is eight
feet (2.4 m). Two 4-foot (1.2 m) sections are standard.
Additional sections may be needed (see Chimney Draft
section).
In higher populated areas, extend the chimney to a
height above the roofs of surrounding buildings. Use
Central Boiler Chimney Extensions when extending
the chimney. When only the standard eight feet (2.4 m)
of chimney are used, the sections must be secured at
the connection joint with four screws to stabilize the
extension.
Be considerate of neighbors when operating your
outdoor furnace. If you use your outdoor furnace in the
summer months, be certain your chimney exhaust is not
adversely affecting neighbors with open windows.
If located within 300 feet (91 m) of any residence not
served by the outdoor furnace, it is recommended that
the chimney be at least 2 feet (0.6 m) higher than the
peak of the residence served.
Fig. 14
Chimney height should
be 2 feet (0.6 m) above roof
line of residence served.
If located within 300 feet (91 m) of any residence not served by the
furnace, it is recommended that the chimney be at least 2 feet
(0.6 m) higher than the peak of the residence served.
2 feet
(0.6 m)
Within 300 ft.
(91 m)
Residence
served by furnace
Residence not
served by furnace
©2008 Central Boiler
NOTE: If more than three 4-foot (1.2 m) sections
of chimney are used, a support (e.g., a pole, pipe
or other structural support) may be installed
from the ground that can withstand wind. Other
reinforcement recommendations are shown in
Fig. 15.
If extensions are added to the standard eight feet (2.4 m) of
chimney, the chimney should be reinforced appropriately.
Fig. 15 shows chimney support recommendations when
three or more sections are used. When adding sections of
chimney, make sure that there is nothing within the fall
zone of the chimney that could be damaged. If something
is located within the fall zone and cannot be removed,
guy wires or braces may need to be installed to prevent a
falling chimney from causing damage (see Fig. 15).
NOTE: For chimney extensions or chimney
replacement, use only genuine Central Boiler
chimney components. Parts are available from
an authorized Central Boiler dealer.
The installation of a spark arrester is recommended,
particularly where there are dry conditions or where
there is combustible material near the unit, unless the
installation of a spark arrester is prohibited by local
requirements. Use common sense to avoid potential
fires, including exercising caution when disposing of
ash, cleaning and refueling. Keep all highly combustible
materials (e.g., gasoline, propane, leaves, pine needles,
etc.) away from an operating unit at all times. Take
special precautions in windy conditions.
Chimney Reinforcement Recommendations
for Maxim M255 Models
STAR
by Central Boiler
FIRE
Water Temp
Clean Out
Mode
Hold
to Light
Press
Twice
for Auto
Relight
Hold to
Prime
Press
Twice
to Clean
Power
TM
Ignition
Auto Relight
Enabled
p/n 9507
Auger
Air Adjust
5%
100%
60%
Heat Output
20%
65%
1%
HIGH
MEDIUM
LOW
Chimney
Guy-Wire
Band Kit
(p/n 776)
Fall Zone
If objects are placed in the fall zone of the chimney, a
Chimney Guy-Wire Band Kit (p/n 776) or additional bracing
is recommended.
Additional bracing may be necessary in
certain areas such as those subject to severe
weather, winds, freezing rain, etc.
Inspect all bracing bi-annually for integrity.
•
•
NOTE
STAR
by Central Boiler
FIRE
Water Temp
Clean Out
Mode
Hold
to Light
Press
Twice
for Auto
Relight
Hold to
Prime
Press
Twice
to Clean
Power
TM
Ignition
Auto Relight
Enabled
p/n 9507
Auger
Air Adjust
5%
100%
60%
Heat Output
20%
65%
1%
HIGH
MEDIUM
LOW
STAR
by Central Boiler
FIRE
Water Temp
Clean Out
Mode
Hold
to Light
Press
Twice
for Auto
Relight
Hold to
Prime
Press
Twice
to Clean
Power
TM
Ignition
Auto Relight
Enabled
p/n 9507
Auger
Air Adjust
5%
100%
60%
Heat Output
20%
65%
1%
HIGH
MEDIUM
LOW
Two 1" electrical
conduit sections
(not supplied)
Chimney Attachment
Ring (p/n 774)
Must be located directly
below Chimney Band
Clamp to reduce stress
on the joint.
Five or More Sections
When five or more sections of
chimney are being used, a Chimney
Band Clamp Kit for each joint and a
Chimney Attachment Ring
(p/n 774) are recommended.
Three or Four Sections
When three or four sections of
chimney are being used, a Chimney
Snaplock Clamp (p/n 6500011) for
each joint is recommended.
Two 3/4"electrical
conduit sections
(not supplied)
Chimney
Snaplock Clamp
(p/n 6500011)
Fig. 15
Section 5 - Chimney
