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or a minimum of 3’ above a chase top or flat roof. If the chimney is exposed more than 6’ above the roof, a roof brace must be
used to secure it in place. Read the chimney manufacturer’s instructions for complete details and specifications.
The maximum offset that can be used with this appliance is 30 degree. Use no more than two sets of 30 degree elbows
for the installation. To ease cleaning, elbows should have at least one pipe section between them. Support the elbows as
required by the chimney manufacturer.
The chimney must be enclosed when it is installed in or passing through a living area where combustible material or people
may come in contact with it. This is important to prevent personal injury or a fire hazard. Consult the chimney manufacturers
instructions for details and clearances.
All framing material, supports and insulation must maintain a 2” minimum clearance to any portion of the chimney. This
area must not be filled with
any
material. Failure to maintain the 2” minimum clearance will result in a fire hazard. Follow
the chimney manufacturer’s installation instructions and clearance recommendations. Typical minimum framing for 8” 2100
degree HT chimney is 14 1/2” x 14 1/2”.
Consult the manual for the chimney brand selected to verify all dimensions.
When a chimney chase is to have multiple flues in it, it is recommended that their terminations be at least 16” horizontally
apart and 12” vertically apart. This is done to reduce the chance of smoke migrating from one chimney to the other.
The Chase Enclosure
The chase is a framed structure created to encase the fireplace and chimney system. A chase should be constructed just like
any other wall. Exterior chase construction must be insulated on the sides, back, ceiling and below the base that the fireplace
sits on. The R value of the chase should be the same as the rest of the walls of the structure. Any insulated chase walls must
be covered with sheetrock or sheeting to contain the insulation.
Combustion Air Requirements
The GranView fireplace is designed to use outside air to supply each and every combustion air port inside of the fireplace.
This creates a sealed system for air supply, eliminating fireplace odor due to negative pressure in the home. The supply
air hook up is located on the lower left of the fireplace as you face it. A minimum 4” diameter supply pipe is required for
combustion air ducting. If ducting more than ten feet for combustion air, use a 6” pipe and reduce it to 4” at the unit
connection. Do not duct over 25’ for combustion air, or have more than three 90 degree bends in the supply pipe.
Do not
terminate the air supply duct in an attic or garage.
An insulated class 1 duct must be used to reduce the effect of cold
transfer. To duct 5’ or less use the standard air kit provided with the fireplace. The standard kit includes a screened exterior
vent termination. Use this termination on the exterior of your structure. Install this duct with an “S” trap to minimize air flow
when the unit is not operating.
Exterior
Unit connection
Insulated duct
