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For more information, visit www.desatech.com

 

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

INTRODUCTION 

BEFORE BEGINNING THE INSTALLATION OF THE 
FIREPLACE, READ THESE INSTRUCTIONS THROUGH, 
COMPLETELY. 

♦ 

This DESA fireplace and its components are safe 
when installed according to this installation manual. 
Unless you use DESA components, which has been 
designed and tested for the fireplace system, you may 
cause a fire hazard.

 

♦ 

The DESA warranty will be voided by and DESA 
disclaims any responsibility for the following actions:

 

a) Modification of the fireplace, components, doors, 

air inlet system and damper control.  
b) Use of any component part not manufactured or 
approved by DESA in combination with a DESA 
fireplace system.

 

PROPER INSTALLATION is the most important step in 
ensuring safe and continuous operation of the fireplace.  
Consult the local building codes as to the particular 
requirements concerned with the installation of all factory 
built fireplaces 
 
 
 
 
 

 
 

USE SOLID WOOD OR PROCESSED SOLID FUEL 

FIRELOGS ONLY. 

 
 
 
 
 
 

This fireplace is not intended to be used as a substitute for 
a furnace to heat an entire home.  Use for supplemental 
heat only. 
 
 
 
 
 
 
 
 
 
 
 
SELECTING LOCATION 

To determine the safest and most efficient location for the 
fireplace, you must take into consideration the following 
guidelines: 

1.)  The location must allow for proper clearances (see 

figures 1 & 2). 

2.)  Consider a location were the fireplace would not be 

affected by drafts, air conditioning ducts, windows or 
doors. 

3.)  A location that avoids the cutting of joists or roof 

rafters will make installation easier. 

4.)  An outside air kit is available with this fireplace.  For 

more details refer to section on outside air kit 
installation on page 3. 

 

MINIMUM CLEARANCES TO COMBUSTIBLES 

• 

Back and side of fireplace --------------     ¾”   minimum

 

Note: The ¾” clearance is not required at the nailing flanges 

• 

Floor* -------------------------------------    0”    minimum

 

*See step 2 of  “Installing the Fireplace” on page 3

 

• 

Perpendicular Wall to Opening of unit -   12” minimum

 

• 

Top Spacers ------------------------------   0”    minimum

 

• 

Mantel Clearances ----------------------          see page 8

 

                                                                               “Mantels” 

• 

Chimney Outer Pipe Surfaces ---------   2”     minimum

 

 

 
 
 
 

MINIMUM / MAXIMUM CHIMNEY HEIGHT 

RESIDENTIAL INSTALLATION 

The minimum height of the chimney, measured from the base 
of the fireplace to the flue gas outlet of the termination, is 14.5 
feet for straight flue or a flue with one elbow set.  The 
maximum distance between elbows is 6 feet.  For systems 
with two elbow sets, the minimum height is 22 feet.  The 
maximum height of any system is 50 feet.  This measurement 
includes the fireplace, chimney sections and the height of the 
termination assembly at the level of the flue gas outlet (see 
page 7, figure 15). 

OUTDOOR  INSTALLATION 

The minimum height of the chimney, measured from the base 
of the fireplace to the flue gas outlet of the termination, is 8 
feet (minimum 4 feet of chimney pipe section required for 
outdoor installation). 
 

FOR YOUR SAFETY 

• 

Do not store or use gasoline or any other flammable
vapors or liquids in the vicinity of this or any other
appliance. 

• 

Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies. 

• 

Do not place clothing or other flammable materials on
or near the appliance. 

• 

NEVER leave children unattended when a fire is
burning in the fireplace. 

WARNING:

 Improper installation, adjustment,

alteration, service or maintenance can cause injury,
property damage, or loss of life.  Refer to this manual for
assistance or additional information.  Consult a qualified
installer or local distributor. 

CHECK LOCAL CODES BEFORE
INSTALLING THIS FIREPLACE. 

WARNING:

  Do not install a fireplace insert in this

box unless the manufacturers instructions with the insert
specifically state this fireplace has been tested for use
with the insert. 

This wood-burning fireplace complies with 

UL 127-

CAN/ULS-S610-M87

standard as a FACTORY BUILT

FIREPLACE.

WARNING: 

Do not pack required air spaces with

insulation or other materials. 

FOR CANADA:

 The authority having jurisdiction (such

as the municipal building department, fire department,
etc.) should be contacted before installation to determine
the need to obtain a permit. 

WARNING:

  When processed wood fuel fire logs

are used, do not poke or stir the logs while they are
burning.  Use only fire logs that have been evaluated for
the application in fireplace and refer to fire log warnings
and caution markings on packaging prior to use. 

Summary of Contents for VS42 Series

Page 1: ... RGA 2 72 standards or for use with a vent free gas log heater approved to ANS Z21 11 2 standard A DESA hood must be installed when using a vent free gas log heater see Accessories p 12 WARNING Always leave glass doors fully opened or fully closed when operating this fireplace S42 42 textured white refractory brick S42H 42 textured white herringbone refractory brick S42R 42 textured red refractory...

Page 2: ...TION PG 3 6 OUTSIDE AIR KIT INSTALLATION PG 3 7 CHIMNEY PIPE AND OFFSET INSTALLATION PG 4 5 8 FIRESTOP SPACERS PG 5 9 FLASHING AND TERMINATION PG 6 7 10 FINISHING YOUR FIREPLACE PG 7 11 MANTELS PG 8 12 GLASS DOORS PG 8 13 GAS LINE INSTALLATIONS PG 9 14 DAMPER OPERATION PG 10 15 TECHNICAL SERVICE PG 10 16 ILLUSTRATED PARTS PG 11 11a 17 REPLACEMENT AND TECHNICAL PARTS PG 12 ...

Page 3: ...TIAL INSTALLATION The minimum height of the chimney measured from the base of the fireplace to the flue gas outlet of the termination is 14 5 feet for straight flue or a flue with one elbow set The maximum distance between elbows is 6 feet For systems with two elbow sets the minimum height is 22 feet The maximum height of any system is 50 feet This measurement includes the fireplace chimney sectio...

Page 4: ...rough flanges located on the sides of the fireplace HEARTH EXTENSION A hearth extension projecting a minimum of 16 in front of and a minimum of 8 beyond each side of the fireplace opening is required to protect combustible floor construction in front of the fireplace Fabricate a hearth extension using a material which meets the following specifications a layer of non combustible inorganic material...

Page 5: ...dependently as the chimney is installed When connecting chimney directly to For Canada use chimney parts designated HT the fireplace the inner flue pipe section must be installed first with the lanced side up The outer pipe section can then be installed over the flue pipe section with the hemmed end up Press down on each pipe section until the lances securely engage the hem on the fireplace starte...

Page 6: ...re 9 They also provide complete separation from one floor space to another or attic space as required by most codes When the double wall pipe passes through a framed opening into an attic space the firestop must be placed into an attic floor as shown in figure 10 OFFSET RISE A B 48 36 24 18 12 4 3 8 16 3 8 9 3 4 25 1 2 1 12 3 4 30 3 4 1 15 34 3 4 1 18 40 1 1 21 1 4 46 1 4 1 23 3 4 49 1 4 1 1 27 3 ...

Page 7: ...LASHING INSTALLATION V6F 8DM or V12F 8DM Determine the flashing to be used with the roof opening chart Slide flashing over pipe until base is flat against roof Replace as many shingles as needed to cover exposed area and flashing base Secure in position by nailing through shingles see figure 13 DO NOT NAIL THROUGH FLASHING CONE INSTALLING FLASHING ON A METAL ROOF When installing the flashing on a ...

Page 8: ... prevent smoke spillage from one termination to another We suggest that terminations be separated at least 24 inches center to center and stacked at vertical height difference of 18 inches see figure 15 NOTE If a decorative shroud is to be installed contact the manufacturer for specifications 10 FOOT RULE All flue gas outlet of chimney termination must extend a minimum of 3 feet in height above th...

Page 9: ...he combustion air gate is not completely open The following tips should be followed to assure that both the fireplace and the glass door retain their beauty and function properly Both the flue damper and the glass doors must be fully opened before starting the fire This will provide sufficient combustion air and maintain safe temperatures in the firebox IMPORTANT The glass must be allowed to warm ...

Page 10: ...framing to provide rigidity for threaded end STEP 4 Repack insulation around gas line and into sleeve opening Seal any gaps between gas line and refractory knockout hole with refractory cement or commercial furnace cement Install the gas appliance or cap off gas line if desired NOTE A DESA hood must be installed when using an unvented gas log set see accessories on page 12 If you install a decorat...

Page 11: ...gure 21 Pulling the handle out will free the outside air door to open Pushing the handle in will lock the door close FOR FURTHER OPERATING GUIDELINES INSTRUCTIONS AND WARRANTY INFORMATION PLEASE REFER TO YOUR HOMEOWNERS GUIDE OR CONTACT YOUR AUTHORIZED DEALER TECHNICAL SERVICE You may have questions about installation operations or troubleshooting If so contact the Technical Service Department at ...

Page 12: ...7839 01 107839 01 107839 01 18 FIREBOX TOP ASSEMBLY 1 106694 02 106694 02 106694 02 106694 02 106694 02 106694 02 19 AIR KIT DOOR ASSEMBLY 1 106703 01 106703 01 106703 01 106703 01 106703 01 106703 01 20 FACE WELDMENT 1 111093 01 111093 01 111093 01 111093 01 111093 01 111093 01 21 AIR DEFLECTOR 1 110892 02 110892 02 110892 02 110892 02 110892 02 110892 02 22 FIREPLACE TOP INSULATION 1 107824 01 1...

Page 13: ... 11a For more information visit www desatech com ILLUSTRATED PARTS ...

Page 14: ... 12 For more information visit www desatech com REPLACEMENT PARTS ACCESSORY PARTS SEE PARTS LIST ON PAGE 11 FOR PART NUMBERS ...

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