Monessen Attribute 32" Vent free Circulating Firebox
The Monessen Attribute 32" Ventless Firebox offers a versatile and efficient solution for adding warmth and style to your home. You can select your own style, such as internal panels in gray, brown, or shiny black glass, to match the decor of your area.
The firebox can be finished cleanly to the edges, providing a seamless appearance, and pairs beautifully with a Monessen log set for a complete setup.
The firebox features hideaway screen pockets, which allow the screens to be tucked into hidden compartments, offering an uninterrupted view of the flames. Its design has an inclined firebox and unique air tubes to assist heat distribution around the room and this design boosts efficiency, improves airflow, and reduces fuel consumption.
With vent-free technology, this firebox provides a convenient and cost-effective heating solution. It requires no external venting, making it easier to install and ideal for spaces where vented options may not be practical.
Features:
- Circulating Firebox with Radiant Clean Face: Combines efficient heat circulation with a sleek, unobstructed design.
- Certified Design: UL listed and compliant with ANSI Z221.91.A2002 standards for safety and reliability.
- Convenient Features: Includes mesh screens that retract into hidden pockets, a hood, and a pre-installed junction box for added ease.
- Exclusive Two-Piece Hearth: Monessen's innovative hearth design allows for effortless access without removing the log set.
- Generous Viewing Area: Offers a clear view of the fire with a 32" width and 27" height.
- Reversible Interior Panels: Proprietary dual-sided panels provide two distinct aesthetic options in one set.
Venting:
Insulated Flex Duct – Chimney Air Kits/Flex Duct
Used for bringing in outside air with insulation to improve thermal efficiency.
- ID4: 4" (100mm) Insulated Flex Duct for Outside Air
- Includes two 42" (1065mm) sections.
- For providing insulated air supply for combustion systems.
Outside Air Kit
Provides a complete solution for bringing in outside combustion air with an access door.
- AKD: Outside Combustion Air Kit with Access Door
- For easy access and controlled delivery of outside air to the combustion chamber.
Uninsulated Flex Duct – Chimney Air Kits/Flex Duct
For bringing in outside air without insulation.
- UD4: 4" (100mm) Uninsulated Flex Duct for Outside Air
- Includes two 42" (1065mm) sections.
- For providing outside air supply in settings where insulation is not required.
Specifications:
- Unit Dimensions: 38" W x 20" D x 34" H
- Back Width: 27-1/4"
- Hearth Dimensions:
- Front Height: 25-1/2"
- Depth: 15"
- Rear Width: 20-3/8"
- Rear Height: 22-5/8"
- Viewing Area: 32" x 27" (864 sq in)
**For more detailed specifications, please visit the Tech Specs tab.
**For detailed information and documents, please visit the Downloads tab where you'll find PDFs and additional resources available for download.
SOMETHING TO CONSIDER BEFORE YOU PURCHASE A VENT FREE APPLIANCE:
Vent-Free sets are supplemental zone heaters - They are not intended for continuous use or whole house heating.
Glass doors must be wide open when burning for proper ventilation, proper combustion and cooling of safety controls. With adequate combustion and ventilation air, the damper may be closed for vent-free use. The damper may be opened slightly for reduced venting.
Check local codes and ordinances for permitted uses.
- In Most Cases, Vent Free Appliances Are NOT Approved For Bedrooms Or Bathrooms.
- Select States And/Or Counties Within States May Not Allow Installation Of Vent Free Products.
- This includes but is not limited to: California, Minnesota, Wisconsin.
- Other states may have local restrictions such as Arizona, Nevada, Idaho, Alaska, Wyoming, New Mexico, North Dakota and South Dakota. Please check local codes before purchasing a Vent Free Appliance.
- Vent free Products Are Not Suitable For People With Allergies Or Breathing Problems
Technical Specifications:
A. Firebox Certification
- Models: ACUF32-BD, ACUF32-GD, ACUF36-BD, ACUF36-GD, ACUF42-BD, ACUF42-GD.
- Laboratory: Underwriters Laboratories, Inc. (UL).
- Type: Ventless Gas Firebox Enclosures for Gas-Fired Unvented Gas Log Type Room Heaters.
- Standard: CSA/ANSI-Z21.91:20.
- Compliance: Must meet local codes; in the absence of local codes, follow ANSI Z223.1/NFPA 54.
- Alarms: Install smoke, CO, or combination alarms 15-20 ft laterally from fuel-burning sources to reduce nuisance alarms.
- Usage: Not intended for primary heat source; approved for supplemental or decorative use.
B. BTU Specifications
- Applicable Use: Only for listed decorative "Gas-Fired Unvented Room Heaters."
- Models and Max BTU/hr:
- ACUF32-BD/GD: 40,000 (0–2,000 ft altitude).
- ACUF36-BD/GD: 40,000 (0–2,000 ft altitude).
- ACUF42-BD/GD: 40,000 (0–2,000 ft altitude).
C. High Altitude Installations
- Guidelines:
- Heating value adjustment required above 2,000 ft elevation.
- Reduce input rate by 4% for every 1,000 ft above 2,000 ft (USA).
- Consultation: Check with local gas utility for guidance.
D. Non-Combustible Materials Specification
- Definition: Materials that will not ignite or burn (e.g., steel, iron, brick, tile, concrete, slate, glass, or combinations).
- Testing Standard: ASTM E 136 - Vertical Tube Furnace at 750 °C.
- Non-Combustibles: Materials passing this test are considered non-combustible.
E. Combustible Materials Specification
- Definition: Materials that ignite and burn (e.g., wood, compressed paper, plastics) regardless of finishing or plastering.
F. Electrical Codes
- Requirement: Must be electrically wired and grounded per local codes or the National Electric Code (ANSI/NFPA 70-latest edition).
Warnings and Notices
- Warning: Operating fuels (natural gas, propane) and combustion products may expose users to chemicals like benzene, known to cause cancer and reproductive harm (California Proposition 65 Warning).
- Additional Note: Refer to local codes and product guidelines for safe use.
Downloads:
Firebox
- Attribute Installation Manual
- Attribute Owners Manual
- Attribute Product Brochure
- Attribute 32" Service Parts
- Attribute 32" Spec Sheet
- Product Warranty
Burners:
- Natural Blaze Series Product Installation & Owner's Manual
- Glow Getter Series Product Installation & Owner's Manual
- Service Parts:
- Log Placements
Manufacturer's Warranty
NAPOLEON products are manufactured under the strict Standard of the world recognized ISO 9001 : 2008 Quality Assurance Certificate. NAPOLEON products are designed with superior components and materials assembled by trained craftsmen who take great pride in their work. The burner and valve assembly are leak and test-fired at a quality test station. The complete appliance is again thoroughly inspected by a qualifi ed technician before packaging to ensure that you, the customer, receives the quality product that you expect from NAPOLEON. The following materials and workmanship in your new NAPOLEON gas appliance are warranted against defects for as long as you own the appliance. This covers: combustion chamber, heat exchanger, stainless steel burner, phazer™ logs and embers, rocks, ceramic glass (thermal breakage only), gold plated parts against tarnishing, porcelainized enameled components and aluminum extrusion trims.* Electrical (110V and millivolt) components and wearable parts are covered and NAPOLEON will provide replacement parts free of charge during the fi rst year of the limited warranty. This covers: blowers, gas valves, thermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly.* Labour related to warranty repair is covered free of charge during the fi rst year. Repair work, however, requires the prior approval of an authorized company offi cial. Labour costs to the account of NAPOLEON are based on a predetermined rate schedule and any repair work must be done through an authorized NAPOLEON dealer. * Construction of models vary. Warranty applies only to components included with your specifi c appliance. NAPOLEON GAS APPLIANCE PRESIDENT’S LIFETIME LIMITED WARRANTY
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