Fireplace And Hearth Dimensions; Placement In A Fireplace With Restrictive Barrier - MHSC TPB18NV Installation And Operating Instructions Manual

FIREPLACE and HEARTH DIMENSIONS

This appliance is for installation only in a solid-fuel burning masonry or
UL127 factory-built fireplace, vent free appliance, or in listed ventless
firebox enclosure. It has been design certified for these installations.
Exception: DO NOT install this appliance in a factory-built fireplace that
includes instructions stating it has not been tested or should not be
used with unvented gas logs.
Use manufacturer's installation and clearance require-
ments as defined in their manual.
The TPB Series unvented room heater is approved for
installation into the following unvented fireplaces:
GCUF Series Fireboxes Magnum36/42,
Lo-Rider36 or BUF
The TPB Series unvented room heater may also be
installed into a Ventless Firebox Enclosure for Gas Fired
Decorative Type Unvented Room Heaters per IAS Require-
ment No. -97 ANSI Z1.91-001 (typically referred to as a
"Universal Firebox"), as long as firebox hearth dimensions
meet the minimum hearth dimensions shown below.
D
A
Model A
F P 2530
TPB18 6"
h e a r t h d i m s
TPB4 9"
TPB30 33"
*When front grate installed "B" will be 1Z\x"
Figure 2 -
Minimum Hearth Dimensions
Barriers such as the bottom of a glass door
frame placed in front of a gas log set can
change the air flow characteristics of the
fireplace which in turn can cause the unit
to overheat and malfunction.
70D0004
C
B
B* C D
13" 18" 17"
13" Z\v" 17"
13" 5Z\v" 17"
IMPORTANT INFORMATION FOR THE IN-
STALLATION OF THIS GAS LOG SET
The following are guidelines for placing a gas log set in
a fireplace that has a restrictive barrier along the bottom
front opening of the fireplace. Some examples of barri-
ers are glass/screen door frames and sunken/recessed
fireplaces.
Height of
Restriction (x)
No Restriction
0" to 1Z\x"
Greater than 1Z\x" to 3"
Greater than 3"
*Any barrier greater than 3" placed in front of the gas log
set is not recommended by the manufacturer.
NOTE: Noncombustible material such as refractory brick
may be used to line the floor of the fireplace in order to raise
the height of the gas log set in relation to a restrictive barrier.
If the unit is raised, the minimum height dimension listed in
the homeowner's manual must not be exceeded.
NOTE: If the log set is equipped with a remote receiver, a
restrictive barrier may reduce the battery life by increasing
the ambient temperature inside the fireplace. Placement
of the receiver outside of the fireplace will extend the
battery life.
Glass door frames
with adjustable
louvers should
have the louvers
fully open while
the unit is in
operation.
H e i g h t o f r e s t r i c t i v e
barrier caused by glass
door frames, recessed
fireplaces, etc. from the
base or bottom surface of
the unit. (refer to table).
Figure 3 -
Reference Drawing of a Natural Flame
Log Set in an Enclosure
FP2864
enclosure
TPB Series Log Set
Minimum Depth of
Fireplace/Firebox
13Z\v"
16"
16"
*
T h e l o g s e t
should be placed
against or as
near as possible
to the rear wall
of the fireplace/
firebox.
Depth of
fireplace/
firebox.
(refer to
table).
7