16
Proper Clearances to combustible material must be
maintained at all times. Here are some common combustible
construction materials:
Drywall
Wood flooring
Plywood
Sub-flooring
Wood Framing
Particle board
Mill board
Plywood paneling
Maintain the following clearances:
Unit sides, rear, Dome sides, rear & top:
2” (51 mm)
Combustible Floors (
TFS/OFS
-33,39,44,49): 6” (152 mm)
Combustible Floors (
TFS/OFS
-63 only):
8” (203 mm)
Combustible Sheathing above opening top: 18” (457 mm)
Sheathing or trim to opening sides:
8” (203 mm)
Mantel above opening:
(see Fig.17)
Opening to sidewall:
24” (610 mm)
Hearth extension beyond front:
20” (508 mm)
Hearth extension beyond sides:
12” (305 mm)
Insulation from firebox:
2” (51 mm)
NON-
COMBUSTIBLE
MATERIAL
COMBUSTIBLE MATERIAL
MANTEL SHELF
SAFE ZONE FOR
PROJECTION OF
COMBUSTIBLE
MATERIAL
1 1/2”
DISTANCES TO UNDERSIDE
OF MANTEL
TOP OF
FIREPLACE
OPENING
ALL MINIMUM
DISTANCES ARE
IN INCHES
UNDERSIDE OF
MANTEL SHELF
33°
Figure 17
Understanding Clearance to Combustibles
There is a build-up of a considerable amount of radiant heat
on the outer surfaces of the Burntech® Fireplace. It’s critical
that proper clearances to combustibles be maintained so that
this radiant heat is maintained to safe limits.
Combustible Floor Clearances
*TFS Models only. OFS Models are not approved for
combustible floor installation.
These Burntech® Fireplaces have been designed with
clearance to combustible floors as indicated in Page 19. Cover
any part of the combustible floor system left exposed with 1”
(one inch) thick ceramic fiber insulation rated up to 2,100° F.
Attention:
It is critical to abide by the clearances listed in this
manual for all components specified as it allows for movement
of hot air from the fireplace into interior areas of the chimney
chase. Also, be certain that the chimney system be installed
as stated below.
Prior to starting the installation, check with
local, regional or state codes for any restrictions or required
permits regarding your fireplace installation.
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Burntech® Fireplace & Chimney System
This Burntech® fireplace is designed to be installed with a
listed UL103 - Class A, Metal Chimney System.
This Burntech® fireplace is intended as a supplemental
heat source only. It is not intended as a primary heat
source.
It is the responsibility of the contractor installer (not the
manufacturer) to ensure that adequate combustion air is
provided for proper function of this fireplace. Fireplaces
take up a large volume of replacement air from outside the
house and if the house is of airtight construction, smoke
spillage may occur if proper draft is not achieved.
There are many conditions beyond the manufacturer’s
control regarding improper fireplace operation. The
manufacturer cannot ensure “smoke free” operation,
nor can the manufacturer take on the responsibility for
problems with surrounding construction; chimneys that
have not been built at the correct heights; system drafts
caused by faulty mechanical systems; adverse weather
conditions or any other environmental situations over
which the manufacturer has no control.
Inspect all fireplace & chimney components for evidence
of damage prior to starting installation. Consult your local
distributor for replacement parts if necessary.
Under no circumstances should you make any adjustments
or modifications to the chimney system during the
installation procedure. If you do, you are not only liable
for negating the warranty, but you could very well cause a
serious malfunction of the fireplace. You must follow these
chimney instructions.
Caution is urged if it is decided to add insulation material
near any part of the Burntech® Fireplace or Chimney
system, be certain that the insulation material is kept at
least 2” (two inches) away from any part of the system.
When using insulation or vapor barrier materials, cover
with a layer of plywood, particle board or gypsum board to
maintain the specified 2” (two inch) clearance.
Air spaces around fireplace must remain open. DO NOT
fill these open spaces with insulation or packing material
of any kind.
Chimney System Heights
When installed, the
maximum
overall height of the chimney
system from bottom of fireplace to the top/termination chimney
is 40 feet. The
minimum
installed height of the completed
Chimney System is 14 feet with a straight flue stack, 17 feet if
the chimney includes one or two offset sections.
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8)
Clearances to Combustibles
