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UNVENTED (VENT-FREE) UNIVERSAL FIREBOX
OWNER'S OPERATION AND INSTALLATION MANUAL
NON-CIRCULATINg MODELS VFF-32S-AKA, VFF-36S-AKA,
VFF-42S-AKA, VTFB32. VTFB36 AND VTFB42
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
FOR USE ONLY WITH A LISTED GAS-FIRED UNVENTED
DECORATIVE ROOM HEATER NOT TO EXCEED 40,000
BTU/HR. DO NOT BUILD A WOOD FIRE.
Carefully review the instructions supplied with the
decorative type unvented room heater for the minimum
fireplace size requirement.
DO NOT INSTALL THE APPLIANCE IN THIS FIREBOX,
UNLESS THIS FIREBOX MEETS THE MINIMUM DIMEN-
SIONS REQUIRED FOR THE INSTALLATION.
This firebox has been tested and approved by Omni Test
Laboratories under ANSI Z21.91 for use with any ANSI
Z21.11.2 approved gas logs.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
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Table of Contents
Related Manuals for Desa VFF-32S-AKA
Summary of Contents for Desa VFF-32S-AKA
- Page 1 UNVENTED (VENT-FREE) UNIVERSAL FIREBOX OWNER’S OPERATION AND INSTALLATION MANUAL NON-CIRCULATINg MODELS VFF-32S-AKA, VFF-36S-AKA, VFF-42S-AKA, VTFB32. VTFB36 AND VTFB42 WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
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Page 2: Table Of Contents
WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier. This appliance may be installed in an aftermarket,* per- manently located, manufactured (mobile) home, where not prohibited by local codes. -
Page 3: Safety Information
SAFETy INFORMATION Do not place clothing or other flammable material on or near WARNING: This product the appliance. Never place any contains and/or generates objects in the firebox or on chemicals known to the state logs. of California to cause cancer or birth defects or other reproduc- Carefully supervise young chil- tive harm. -
Page 4: Local Codes
LOCAL CODES LOCATINg FIREBOX Install and use heater with care. Follow all local PLANNING codes. In the absence of local codes, use the lat- Plan where you will install the firebox. This will est edition of The National Fuel Gas Code, ANSI save time and money later when you install the fire- Z223.1/NFPA 54*. -
Page 5: Product Specifications
PRODUCT SPECIFICATIONS 32" MODELS " " " " Left Side " View with Air Kit Built-In Outside Air Side Kit Location Nailing " (Optional) Flanges " Square Firebox Top View Gas Line " A ccess " " Holes " " "... -
Page 6: Side View
PRODUCT SPECIFICATIONS Continued 36" AND 42" MODELS Note: If only one dimension is shown, the dimension is the same for both 36" and 42" models. " (36" Models) "(36 " (42" Models) 43"(36 " (36" Models) " Full Length Nailing Fla "... -
Page 7: Air For Combustion And Ventilation
AIR FOR COMBUSTION Unusually tight construction is defined as construction where: AND VENTILATION a. walls and ceilings exposed to the out- side atmosphere have a continuous WARNING: This firebox shall water vapor retarder with a rating of not be installed in a confined one perm (6 x 10 kg per pa-sec-m ) or... -
Page 8: Combustion And Ventilation Air
4. Compare the maximum Btu/Hr the space can AIR FOR COMBUSTION support with the actual amount of Btu/Hr used. AND VENTILATION __________ Btu/Hr (maximum the space Continued can support) DETERMINING FRESH-AIR FLOW __________ Btu/Hr (actual amount of Btu/Hr used) FOR HEATER LOCATION Example: 63,360 Btu/Hr (maximum Determining if You Have a Confined or the space can support) -
Page 9: Installation
AIR FOR COMBUSTION Ventilated AND VENTILATION Outlet Attic Continued Outlet VENTILATION AIR To Attic Ventilation Air From Inside Building This fresh air would come from an adjoining un- Crawl confined space. When ventilating to an adjoining Space Inlet unconfined space, you must provide two perma- nent openings: one within 12"... -
Page 10: Fireplace Screen
These fireboxes can be installed as freestanding INSTALLATION units against a wall with the approved, optional Continued cabinet mantels (see Accessories, page 14) or as a IMPORTANT: Vent-free gas log heaters add built-in unit. The clearances are the same for either moisture to the air. - Page 11 1. Frame in rough opening. The firebox fram- INSTALLATION ing should be constructed of 2 x 4 lumber or Continued heavier. Use dimensions in Table 1 and rough opening layout in Figure 7a. Adjust framing so NOTICE: If your installation does that firebox flushes with finished wall surface.
- Page 12 INSTALLATION WARNING: Use only non- Continued combustible mortar or adhe- 5. Attach firebox to wall studs using nails or sives when overlapping the front wood screws through holes in nailing flange (see Figure 8). facing with noncombustible 6. If using an optional perimeter trim kit, install facing material.
- Page 13 INSTALLATION Continued Equipment Shutoff Screen Valves (Install Pocket One) Air Kit Handle Knockout Locations Figure 11 - Air Kit Handle Location (Knock Out One Hole) INSTALLING FIREPLACE HOOD Gas Line Hole AND SCREEN 1. Attach hood and front panel assembly by Figure 9 - Installing Gas Line and snapping the panel assembly into fireplace Equipment Shutoff Valve (Model May...
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Page 14: Replacement Parts
Identification Label When calling, please have your model and serial Location numbers of your firebox ready. Rear Hole You can also visit DESA’s technical services web Front Hole site at www.desatech.com ACCESSORIES NOTICE: All accessories may not be available for all fireplace models. -
Page 15: Outside Air Kit
ACCESSORIES PERIMETER TRIM Continued PT32 - 32" Black PT32B - 32" Brushed Brass WALL CABINET MANTEL AND BASE PT32PB - 32" Polished Brass ACCESSORY WITH FIREPLACE PT32P - 32" Platinum PERIMETER TRIM (Not Shown) PT36 - 36" Black PT36B - 36" Brushed Brass W32AU - 32"... -
Page 16: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN MODELS VFF-32S-AKA AND VTFB32 23 25 www.desatech.com 116208-01C... -
Page 17: Parts List
PARTS LIST This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on page 14 of this manual. PART NO. DESCRIPTION QTY. 116207-02 Screen • • 108700-01 Screen Rod • • 11418 Push-On Nut •... - Page 18 ILLUSTRATED PARTS BREAKDOWN MODELS VFF-36S-AKA, VFF-42S-AKA, VTFB36 AND VTFB42 www.desatech.com 116208-01C...
- Page 19 PARTS LIST This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on page 14 of this manual. PART NO. DESCRIPTION QTY. 116207-01 Screen • • 116207-03 Screen • • 107839-01 Screen Rod •...
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Page 20: Warranty Information
LIMITED WARRANTy VENT-FREE FIREBOX DESA warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.