Desa C42EC2 User Manual

42" WOODBURNING FIREBOX

Model C42EC2 Circulating (Louvered)

INSTALLATION INSTRUCTIONS

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 replacement parts or optional accessory items when needed. Keep it with your other important papers.

23 5/16"

13/16"

/8"

ROUND TOP TERMINA TION

Model ________________________________ Serial No. _____________________________ Date Purchased ________________________

22"

/2"

/8"

/16"

STORM COLLAR

FLASHING

/4"

/16"

/8"

OPENING FOR OUTSIDE AIR KIT

/4"

/2"

42"

/16"

GAS LINE CONDUIT SLEEVE (BOTH SIDES)

22"

/4"

/16"

/8"

0 IN. TO TOP SPACER

3/4" AIR SPACE BACK AND SIDES

OUTSIDE AIR (LEFT SIDE ONLY)

0 IN. TO BOTTOM

12 IN. EACH SIDE

2 IN. AIR SPACE TO COMBUSTIBLE MATERIALS

FIRESTOP

COMBUSTIBLE WALL BOARD

NO COMBUSTIBLE MATERIAL ON FACE

NOT LESS THAN 24 IN. TO PERPENDICULAR SIDEWALL

HEARTH EXTENSION 66 IN. x 20 IN.

DESA INTERNATIONAL, 2701 INDUSTRIAL DRIVE, P.O. BOX 90004, BOWLING GREEN, KY 42102-9004

55951 Rev. B 09/99

FOR YOUR SAFETY

• Do not store or use gasoline or any other flammable vapors or liguids 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.

WARNING: This fireplace is intended for use with wood, decorative gas appliance, and vent-free gas logs which burn propane/LP or natural gas only.

CHECK LOCAL CODES PRIOR TO INSTALLATION

INSTALLATION INSTRUCTIONS

INTRODUCTION

Before beginning the installation of your firebox, read these instructions through, completely.

These Comfort Glow components and fireboxes are safe when installed according to this Installation Manual. Unless you use Comfort Glow components which have been designed and tested for the firebox system, you may cause a fire hazard.

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

a) Modification of the firebox, components, doors, blower fans,

air inlet system and damper control.

b) Use of any component part not manufactured or approved by

DESA International, in writing, in combination with a DESA International firebox system.

Refer to your Homeowners guide for warranty information.

This wood burning fireplace complies with UL127 as a FactoryBuilt Fireplace and is listed and tested by Underwriters Labo-

ratory, Inc.

This model is not for use in mobile homes.

MINIMUM CLEARANCES TO COMBUSTIBLES

Framing and enclosures may safely make direct contact with the spacers on the top of the firebox. The firebox may sit directly on combustible flooring (see Step 4, below). The firebox opening must not be less than 24 inches from combustible materials and the chimney must be absolutely maintained. A 16

/2 inch inside chase dimension is recommended as a minimum size. A 3/4 inch air space is required around back and sides of firebox.

Keep all combustible furnishings a considerable distance from the firebox.

WARNING: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or similar liquids to start or “freshen up” a fire in this firebox. Keep all such liquids well away from the firebox.

WARNING: Do not pack required air spaces with insulation or other material.

HEIGHT: The minimum height of the chimney, measured from the base of the firebox to the flue gas outlet, is 16 feet for a straight chimney or with one elbow set. For systems with 2 elbow sets, the minimum height is 30 feet. The maximum height of any system is 60 feet. This measurement includes the firebox, chimney sections and the effective height of the termination assembly.

GENERAL

Read the Warranty and Operating guidelines supplied with this firebox. Following these simple guidelines will ensure years of trouble free and safe usage of your firebox. If the Warranty and Operating instructions are not in your firebox, write to the address listed on the front cover.

INSTALLING THE FIREBOX

STEP 1: Frame the opening for the firebox using the dimensions shown in Figure 1 or Figure 2.

STEP 2: Set the firebox directly in front of this opening and slide the unit back until the mounting flanges touch the side framing.

STEP 3: Check the level of the firebox and shim with sheet metal if necessary.

STEP 4: When the firebox is installed upon a combustible floor a galvanized steel ember protector (provided) must be installed between the firebox and the hearth extension as illustrated in Figures 12 and 13.

STEP 5: Secure the firebox to the framing through the flanges located on the sides on the firebox with nails, or screws.

Note:

The 3/4" clearance is not required at the nailing flange. (see

Figure 10)

WARNING: Do not install a fireplace insert in this firebox unless the manufacturer’s instructions with the insert specifically state this firebox has been tested for use with the insert.

PROPER INSTALLATION is the most important step in ensuring safe and continuous operation of this firebox. Consult the local building codes as to particular requirements concerned with the installation of all factory built fireboxes. Although grounding may not be required by code it is recommended by the manufacturer.

This firebox is not intended to be used as a substitute for a furnace to heat an entire home. Use for supplementary heating only.

45 1/4"

Figure 1 - Framing Dimensions

/16"

/2"

23 5/8"

55951

/8"

46 5/8"

33"

/8"

66"

Figure 2 - Framing Dimensions

ASSEMBLING AND INSTALLING YOUR DOUBLE-WALL CHIMNEY SYSTEM

Each double wall chimney section consists of an outer pipe, flue pipe and one wire spacer. The pipe sections are not unitized and must be assembled independently as the chimney is installed. When starting the chimney directly on the firebox, the 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. (see Figure 3A).

Press down on each pipe section until the lances securely engage the hem on the firebox starter. The wire spacer will assure the proper spacing between the inner and outer pipe sections.

LINEAL GAIN: THE ACTUAL MEASURABLE LENGTH OF A PART AFTER TWO OR MORE

PARTS ARE CONNECTED.

12 3/8 GALVANIZED OUTER

PIPE

PART GAIN NO. DESCRIPTION (IN)

C42EC2 FIREBOX 42 C12-8DM PIPE SECTION 10 C18-8DM PIPE SECTION 16 5/

HEMMED

END

C36-8DM PIPE SECTION 34 5/ C48-8DM PIPE SECTION 46 5/ CRTL-8DM ROUND

8 IN.

STAINLESS

INNER PIPE

Figure 3A

Continue to assemble chimney sections as outlined above, making sure that both inner and outer pipe sections are locked together. Before installing double wall “snap lock” chimney together, it is important to assure the joint between the chimney sections are locked. Check by pulling chimney upward after locking. The chimney will not come apart if properly locked. It is not necessary to add screws to keep the chimney together.

WARNING: The opening in the collar around the chimney at the top of the fireplace must not be obstructed. Never use blown insulation to fill the chimney enclosure (see Figure 3B).

FIREPLACE COLLAR

LINEAL GAIN

TERMINATION 6

KEEP THIS AREA OPEN

8 8 8 8

FIRESTOP SPACERS

Firestop spacers are required at each point where the chimney penetrates a floor or ceiling joist space. Their purpose is two fold, they establish and maintain the required clearance between the chimney and combustible materials, and provide complete separation from one floor space to another floor or attic space as required by most codes. When penetrating a floor or ceiling at an angle, firestop in pack should be used.

When the double wall pipe passes through a framed opening into an attic space, the firestop must be placed into the attic floor as in Figure 4.

When the pipe passes through a framed opening into a living space above, the firestop must be placed on to the ceiling from below as in Figure 5.

Figure 4

Figure 5

SUPPORT SECTIONS

The chimney support section is a 4 strap 12” length of pipe. A chimney support is required at the 30 foot level above the fireplace after a straight on the fireplace and elbows when high chimneys are installed.

C12S-8DM

V12S-8DM

C12S-8DM

SUPPORT

30 FT.

V12S-8DM

SUPPORT

30 FT.

RETURN

ELBOW

Figure 6

BLOWER ASSEMBLY (CBK3)

A blower assembly is available for use with this fireplace as an option. It is designed to be installed on DESA International factory pre-wired fireplaces only. The blower assembly model CBK3 can be installed prior to or after installation of the fireplace. Use of blowers or fans other than manufactured by DESA International voids the warranty. The optional blower is operated by a switch located on the lower face. Flipping the switch turns the blowers on or off.

Note:

Fireplace must be wired to the house electrical system in order for

blowers to operate. See instructions provided with blower assembly. Electrical connections are made through the cover on the side of the

fireplace illustrated in Figure 7. Use 14 AWG min. copper wire for all connections. Be certain the fireplace is properly grounded.

BLOWER SWITCH

Figure 3B

55951

ELECTRICAL COVER PLATE

GROUND SCREW

STRAIN RELIEF

Figure 7

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