17
Specifying Chimney Heights
If the horizontal distance from the mid-point of the chimney
to the peak of the roof ridge is less than 10 feet, the top of the
chimney must be at least 2 feet above the roof ridge. This is
called the “2 foot in 10 foot” rule.
If the horizontal distance from the chimney’s center
measured across to the ridge of the roof is more than 10 feet,
the top of the chimney still needs to be at least 2 feet above a
point measured from a distance of 10 feet horizontally along
the roof.
Figure 3
Though there are many configurations in meeting these
requirements, chimney height cannot be less than 3 feet above
the roof at the edge of the chimney.
If the roof is flat, the chimney must extend no less than 3
feet from where it intersects the roof. If the chimney is entering
the roof at an angle, measure the shorter angle where the
chimney intersects the roof which should be at least 3 feet.
Note:
The previous guidelines do not take into consideration
outside conditions which may require a higher chimney due
to foliage, other buildings, power lines and weather conditions
in your area. Follow the chimney manufacturer’s installation
guide for further information.
Chimney Termination Units
You will be installing at or possibly near the top of the
chimney chase flashing. A top termination unit is the essential
piece of equipment in keeping sparks out of the atmosphere.
Before installing this important piece of equipment, you will have
to make a judgment call as to whether or not the termination
unit – like all the other exterior exposed chimney components,
for that matter – should be painted in order to protect it/them
from rusting and weathering. Particularly if you are installing
the fireplace and chimney near water or in a high humidity area,
the manufacturer recommends a top quality, rust-proof paint
especially formulated for metal. Follow the paint manufacturer’s
directions, applying the paint well before you are scheduled to
install the round top termination unit or any of the flashings or
flues that will be exposed to outside weather conditions.
Venting terminals shall not be recessed into walls or siding.
This appliance, when installed, must be electrically grounded
in accordance with local codes and in the absence of local
codes, with the National Electrical Code, ANSI NFPA 70, or the
Canadian Electrical Code, CSA C22.1.
Important Pre-installation Information
Before you begin, review the information and safeguards
below regarding the installation and operation of the gas
Fireplace.
This fireplace may only be connected to the gas supply
listed on the label.
Never use propane gas in a gas fireplace
designed for natural gas or natural gas in a gas fireplace
designed for use with propane gas.
The gas fireplace must be installed by an BURNTECH
Certified or other qualified professional installer. The installation,
including provisions for combustion and ventilation air, must
conform with local codes, or, in the absence of local codes,
with the latest edition of the National Fuel Gas Code, ANSI
Z223.1, and NFPA54.
The fireplace must have a gas supply line that has
been installed by a qualified technician in accordance with
all local codes.
The gas supply line must be 1/2” minimum interior diameter. If
the gas line to the fireplace is longer than 5’, a larger diameter
line may be necessary.
BURNTECH
Supplied
B
urner P/N
BTU*
x 1000
Orifice Drill
Size
(top/front)
Fireplace
Model #
Nat
LP
GML-24-01(N)(P)
60
28/48 47/56 GBVS-39 or
-44
GML-30-01N
90
19/41
GBVS-49
GML-30-01P
84
40/55
*Nominal BTU based on gas inlet pressure. Nominal gas inlet
pressure for natural gas is 5” W.C.
WARNING: THIS FIREPLACE IS DESIGNED FOR USE ONLY
WITH THE ANSI Z21.50 DECORATIVE GAS LOGS AND
BURNER TESTED AND APPROVED FOR THIS FIREPLACE.
Any change or alteration in burners or log sets must be
approved by Burntech in writing or warranty will be void.
BTU's can never exceed more than 65,000 on Models GBVS
39 and 44 and 80,000 btu's on Model GBVS 49. Unapproved
changes or alterations could result in a fire or explosion
resulting in property damage, personal injury or death.
