United States Stove Company VFZC36, VFZC42 Owner's Operation And Installation Manual

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United States

Stove Company

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Vent-Free Zero-Clearance Universal Firebox

Model VFZC36 and Model VFZC42

Certified for use with any Unvented Log Set tested to ANSI Z21.11.2

This Firebox may also be installed in manufactured (mobile) homes,

where not prohibited by state or local codes.

Shown with optional

cabinet mantel, hearth

base, brass trim, louvered

grills, and firebrick panels.

OWNER'S OPERATION AND INSTALLATION MANUAL

FOR USE ONLY

WITH DECORATIVE TYPE

UNVENTED ROOM HEATERS

DO NOT BUILD A WOOD FIRE

Save this manual for future

reference.

WARNING: If the information in this manual is not followed exactly, a fire or

explosion may result causing property damage, personal injury or loss of life.

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 DIMENSIONS REQUIRED

FOR THE INSTALLATION.

851298 2/98

TABLE OF CONTENTS

SECTION PAGE

PRODUCT FEATURES...........................................................................................2

LOCAL CODES........................................................................................................2

WARNINGS/SAFETY INFORMATION......................................................................3

VFZC36 SPECIFICATIONS.....................................................................................4

VFZC42 SPECIFICATIONS.....................................................................................5

LOCATING THE FIREBOX.....................................................................................6

AIR FOR COMBUSTION AND VENTILATION........................................................6

INSTALLATION..................................................................................................6-14

PARTS DIAGRAM ................................................................................................15

PARTS LIST...........................................................................................................16

OPTIONAL ACCESSORIES............................................................................17-18

HOW TO ORDER REPAIR PARTS........................................................................19

PRODUCT FEATURES

Operation

These fireboxes are approved for installation with any certified vent-free gas log heater up to
40,000 BTU's. They require no outside venting or chimney making installation easy and inex­pensive. When used without the optional blower (model VFZCB), the firebox requires no
electricity making it ideal for emergency backup heat.

LOCAL CODES

Installation must conform with local codes or, in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1. When using the optional Blower Kit, this firebox must be
electrically grounded in accordance with local codes or, in the absence of local codes, with
the National Electrical Code, ANSI/NFPA 70.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

2

Batterymarch Park

Quincy, MA 02269

WARNINGS/SAFETY INFORMATION

IMPORTANT: Read this owner's manual carefully and completely before trying to
assemble, operate, or service this firebox. Improper use of this firebox can cause
serious injury or death from burns, fire, explosion, electrical shock, and carbon
poisoning.

WARNING: Any change to this firebox or its controls can be dangerous.

1. This firebox shall not be installed in a bedroom or bathroom.

2. Never install the firebox
* in a recreational vehicle
* where curtains, furniture, clothing, or other flammable objects are less than

36 inches from the front, top, or side of the firebox
* in high traffic areas
* in windy or drafty areas

3. Do not use this firebox as a wood-burning fireplace.
Use only "Vent-Free Gas Log Heaters".

4. Do not add extra logs or ornaments such as pine cones, vermiculite, or rock wool.
Using these added items can cause sooting.

5. You must operate this firebox with the fireplace screen, hood, and brick liner
in place. Make sure these parts are in place before running firebox.

6. Do not allow fans to blow directly into the firebox. Avoid any drafts that alter burner flame
patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner
patterns can cause sooting.

7. Do not use a blower insert, heat exchanger insert or other accessory not approved
for use with this heater.

8. Vent-free gas log heater installed in this firebox requires fresh air ventilation to run
properly. See Air for Combustion and Ventilation instructions in Gas Log Heater owner's
manual.

9. Do not run firebox
* where flammable liquids or vapors are used or stored
* under dusty conditions

10. Do not use this firebox to cook food or burn paper or other objects.

11. Never place any objects in the firebox or on logs.

12. Firebox front and screen becomes very hot when running firebox. Keep children and
adults away from hot surfaces to avoid burns or clothing ignition. Firebox will remain
hot for a time after shut-down. Allow surfaces to cool before touching.

13. Carefully supervise young children when they are in the room with firebox.

14. Turn firebox off and let cool before servicing. Only a qualified service person should
service and repair firebox.

15. Operating vent-free gas log heaters in a firebox above elevations of 4,500 feet could
cause pilot outage.

3

VFZC36 SPECIFICATIONS

INSIDE FIREBOX

FIREBOX TOP VIEW

NAILING FLANGE

GAS LINE

ELECTRICAL
ACCESS

ACCESS

FIREBOX SIDE VIEWFIREBOX FRONT VIEW

4

VFZC42 SPECIFICATIONS

INSIDE FIREBOX

FIREBOX TOP VIEW

NAILING FLANGE

GAS LINE

ELECTRICAL
ACCESS

ACCESS

FIREBOX SIDE VIEWFIREBOX FRONT VIEW

5

LOCATING FIREBOX

Planning

Plan where you will install the firebox. This will save time and money later when you install
the firebox. Before installation, consider the following:

1. Where the firebox will be located. Allow for wall and ceiling clearances (see
Installation Clearances, page 7).

2. If installing firebox directly on carpeting, tile or other combustible material, other than
wood flooring, the firebox must be installed on a metal or wood panel extending the full
width and depth of the enclosure.

3. Everything needed to complete installation.

4. These models CANNOT be installed in a bedroom or bathroom.

5. Proper air for combustion and ventilation (see below).

AIR FOR COMBUSTION AND VENTILATION

Provisions for adequate combustion and ventilation air must be made before
installation of this unit. Please Refer to manual accompanying log set.

INSTALLATION

NOTICE

A qualified service person must install firebox. Follow all local codes.

WARNING

Never install the firebox

* in a bedroom or bathroom
* in a recreational vehicle
* where curtains, furniture, clothing, or other flammable objects

are less than 36 inches from the front, top, or sides of the firebox
* in high traffic areas
* in windy or draft areas

CAUTION

Vent-Free Gas Log heaters installed in this firebox create warm air currents. These
currents move heat to wall surfaces next to firebox. Installing firebox next to vinyl
or cloth wall coverings or operating firebox where impurities in the air (such as
tobacco smoke) exist, may discolor walls.

IMPORTANT: Make sure the firebox is level. If firebox is not level, log set will not work
properly.

6