Comfort Glow B42LI-M Operation manual

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SAVE THIS BOOK
This book is valuable. In addition to instructing you
on how to install and maintain your appliance, it also
contains information that will enable you to obtain re-
placement parts or accessory items when needed. Keep
it with your other important papers.


ANS Z21.60, Z21.84 standard or for use with a vent-free
gas log heater approved to ANS Z21.11.2 standard. A
DESA Heating, LLC hood must be installed when using
a vent-free log heater (see Accessories, page 18).
      
     
APPLIANCE.


etc.) should be contacted before installation to deter-
mine the need to obtain a permit.


WOOD BURNING FIREPLACE
OWNER’S OPERATION AND
INSTALLATION MANUAL
MODEL B42LI-M


www.desatech.com 115386-01B2
SAFETY


the manufacturer's instructions


use with this insert.

 

or liquids in the vicinity of this
or any other appliance.
 
appliance should be located
     
furniture and draperies.
 

the appliance.
    -




only. When processed wood
      
poke or stir the logs while they

that have been evaluated for

     
caution markings on packaging
prior to use.

be used as a substitute for a fur-

for supplemental heat only.
-
  
service or maintenance can


for assistance or additional in-
   
installer or local distributor.


Before beginning installation of this replace,
read these instructions through completely.
• This DESA Heating, LLC replace and its
components are safe when installed ac-
cording to this installation manual. Unless
you use DESA Heating, LLC components,
which have been designed and tested for
the replace system, you may cause a re
hazard.
• The DESA Heating, LLC warranty will be
voided by and DESA Heating, LLC dis-
claims any responsibility for the following
actions.
a. Modification of the fireplace, com-
ponents, doors, air inlet system and
damper control.
b. Use of any component part not manu-
factured or approved by DESA Heating,
LLC in combination with a DESA Heat-
ing, LLC replace system.
Proper installation is the most important step
in ensuring safe and continuous operation of
replace. Consult the local building codes as
to the particular requirements concerned with
the installation of all factory built replaces.
TABLE OF CONTENTS
Safety .................................................................. 2
Specications ...................................................... 3
Fireplace Installation............................................ 4
Venting Installation .............................................. 7
Optional Gas Line Installation............................ 13
Operation and Maintenance .............................. 14
Technical Service............................................... 15
Parts .................................................................. 16
Replacement Parts ............................................ 18
Accessories ....................................................... 18

www.desatech.com
115386-01B 3
SPECIFICATIONS
0" TO
BOTTOM
OUTSIDE AIR
(LEFT SIDE
ONLY)
TOP SPACERS
3/4" AIR
SPACE
BACK
AND
SIDES
HEARTH
EXTENSION
66" X 20"
12"
EACH SIDE
1" AIRSPACE
TO COMBUSTIBLE
COMBUSTIBLE
WALL BOARD
0" TO
MATERIAL
NO COMBUSTIBLE
MATERIAL ON FACE
GAS LINE
KNOCK OUT
AIR KIT KNOCK OUTS
ROUND TOP TERMINATION
GAS LINE
KNOCK OUTS
LEFT SIDE
RIGHT SIDE
NOT LESS
THAN 14" TO
PERPENDICULAR
SIDEWALL
SQUARE CHASE-TOP
TERMINATION
8.25"
10.375"
13"
37.5"
33"
44"
42"
21.5"
32"
6.5"
38.85"
14.438"
1.375"
25.375"
7"
7"
1"
8.25"
14"
44"
1"
1.75"
0.625"
28.5"
21.125"

www.desatech.com 115386-01B4
FIREPLACE INSTALLATION

To determine safest and most efcient location
for replace, you must take into consideration
the following guidelines:
1. Location must allow for proper clearances
(see Figures 1 and 2).
2. Consider a location where replace will
not be affected by drafts, air conditioning
ducts, windows or doors.
3. A location that avoids cutting of joists or
roof rafters will make installation easier.
4. An outside air kit is available with this
replace (see Optional Outside Air Kit on
page 7).


Back and sides of replace 3/4" minimum*
Floor** 0" minimum
Perpendicular wall to opening 14" minimum
Top spacers 0" minimum
Mantel clearances see Mantels, page 6
Chimney outer pipe surface 1" minimum
* Not required at nailing anges
** See step 2 of Framing
-
quired air spaces with insulation
or other materials.

Minimum height of chimney, measured from
base of replace to ue gas outlet of termina-
tion, is 11.5 feet for straight ue or a ue with
one elbow set. Maximum distance between
elbows is 2 feet. For systems with two elbow
sets, minimum height is 22 feet. Maximum
height of any system is 50 feet. This measure-
ment includes replace, chimney sections and
height of termination assembly at level of ue
gas outlet (see Figure 18, page 11).

1. Frame opening for replace using dimen-
sions shown in Figures 1 and 2.
2. If replace is to be installed directly on
carpeting, tile (other than ceramic) or any
combustible material other than wood
ooring, replace must be installed upon
a metal or wood panel extending full width
and depth of replace.
3. Set replace directly in front of this open-
ing and slide unit back until nailing anges
touch side framing.
4. Check level of replace and shim with
sheet metal if necessary.
5. Before securing fireplace to prepared
framing, ember protector must be placed
between hearth extension (not included)
and under bottom front edge of replace
to protect against glowing embers falling
through. If replace is to be installed on
a raised platform, a Z-type ember protec-
tor (not included) must be fabricated to
t your required platform height. Ember
protector should extend under replace a
minimum of 1 1/2". Ember protector should
be made of galvanized sheet metal (28
gauge minimum) to prevent corrosion.
6. Using screws or nails, secure replace to
framing through anges located on sides
of replace.
22"
37.625"
44.25"
Figure 1 - Framing Dimensions
52 1/2"
15 7/8"
22 1/2"
72 7/8"
Maintain 3/4"
Clearance at
Sides and
Back of
Fireplace
3/4" Clearance Not
Required at Nailing Flanges
Figure 2 - Corner Installation

www.desatech.com
115386-01B 5

A hearth extension projecting a minimum of
20" in front of and a minimum of 12" beyond
each side of replace opening is required to
protect combustible oor construction in front
of replace. Fabricate a hearth extension
using a material which meets the following
specications: a layer of noncombustible,
inorganic material having a thermal conductiv-
ity of K=0.84 BTU IN/FT, HR. F (or less) at 1"
thick. For example, if material selected has
a K factor of 0.25, such as glass ber, the
following formula would apply:
0.25 x 1.0" = 0.30" thickness required
0.84
Thermal conductivity "K" of materials can be
obtained from manufacturer or supplier of
noncombustible material. If hearth extension
is to be covered, use noncombustible mate-
rial such as tile, slate, brick, concrete, metal,
glass, marble, stone, etc. Provide a means
to prevent hearth extension from shifting and
seal gap between replace frame and hearth
extension with a noncombustible material
(see Figure 3).

is to be installed only as shown

FIREPLACE INSTALLATION
Continued
Figure 3 - Hearth Extension
Seal Gap
Fireplace Front
Ember Protector
Fireplace Front
Raised Hearth
Fireplace Front
Elevated
Ember Protector
Ember Protector
Seal Gap
Hearth
Extension
Seal Gap
Fireplace Front
Ember Protector
Fireplace Front
Elevated
Do Not Block Louver
Ember Protector
Seal Gap
Hearth
Extension


NO