The Buck Stove Model 91 Catalytic Wood Burning Fireplace Insert delivers serious heating performance for homeowners who want to transform an existing masonry fireplace into a powerful, efficient wood-burning heat source. Designed to heat approximately 1,800–3,200 square feet, the Model 91 combines a large 4.4 cubic foot firebox, catalytic combustion, and 80.4% efficiency for dependable whole-home warmth.

Built for long, comfortable fires, the Model 91 features a factory-installed blower, high-efficiency heat exchange system, ash removal tray, and oversized glass door with an air-wash system for a clearer view of the flames. Its spacious firebox accommodates large logs, while the integrated blower helps circulate heat throughout the living space. For homeowners looking for a high-capacity catalytic wood fireplace insert with proven Buck Stove construction, the Model 91 combines powerful heating, convenient operation, and traditional wood-fire ambiance.

Main Features:

• Powerful Whole-Home Heating
  Designed to heat approximately 1,800–3,200 sq. ft., making the Model 91 an excellent choice for larger living spaces and homes.

• High-Efficiency Catalytic Performance
  The catalytic combustion system helps the Model 91 achieve an impressive 80.4% efficiency for effective, efficient wood heating.

• Large 4.4 Cu. Ft. Firebox
  The spacious firebox provides plenty of room for larger wood loads and accommodates logs up to 22" front-to-back or 23" side-to-side.

• Factory-Installed Blower
  The included blower helps move warm air away from the fireplace and distribute heat throughout your living space.

• High-Efficiency Heat Exchange
  Built to capture and transfer more usable heat into your home for dependable heating performance.

• Oversized Glass Viewing Door
  Enjoy a generous view of the wood fire through the large glass door for the traditional ambiance of a real wood-burning fireplace.

• Air Wash Glass System
  The integrated air wash system helps reduce buildup on the glass for a cleaner, clearer view of the flames.

• Convenient Ash Removal Tray
  An included ash drawer makes routine cleanup and ash removal easier.

• Built for Masonry Fireplace Installations
  The Model 91 Insert is designed to convert a compatible existing masonry fireplace into a powerful wood-burning heating appliance.

• 5-Year Warranty
  Buck Stove lists the Model 91 with a 5-year warranty for added confidence in your investment.

Specifications:

• Max Heat Output: 14,206 - 62,745 BTU
• Heating Area: 1800 - 3200 Sq. Ft
• Unit Dimensions: 34 1/4" W X 23 3/16" H X 28 7/8" D
• Minimum Fireplace Dimensions: 31 3/4" W x 23 1/2" H x 15 1/2" D
• Firebox Volume: 4.4 Cubit Feet
• Door Type: Single, Glass with Cast Iron Frame
• Chimney Diameter: 8" Top Vent
• Maximum Log Length: 22" (front to back), 23" (side to side)
• Clearances: 30" to Mantel, 20" to Side Wall
• Weight: 620 lbs
• Efficiency: 80.4%
• Warranty: 5 Year

Warranty:

New Buck Corporation provides limited warranty coverage for the heating unit while it remains owned by the original purchaser, subject to the warranty terms and exclusions.

• First-Year Parts Coverage
  For 1 year from the date of purchase, New Buck Corporation may repair or replace, at its option, parts found to be defective in materials or workmanship. Parts are covered; labor and transportation costs are the responsibility of the customer.

• Extended 5-Year Parts Coverage
  The warranty provides additional parts coverage for qualifying components for a 5-year period following the initial warranty period, subject to the limitations outlined by New Buck Corporation. Electrical motors, wiring, switches, components, accessories, and parts not permanently attached to the heating unit are excluded from this extended coverage.

• Original Purchaser Coverage
  Warranty protection applies while the covered heating unit remains owned by the original purchaser and is non-transferable.

Warranty coverage does not include:

• Glass
• Refractory material
• Firebrick
• Gaskets
• Catalyst
• Damage or failure caused by abuse
• Damage or failure caused by improper installation
• Labor or transportation charges
• Unauthorized repairs or attempted repairs

All warranty repairs must be completed by an authorized Buck Stove service representative. Repairs or attempted repairs by unauthorized parties are not covered and may affect coverage for resulting problems.

The Owner Registration Card must be completed and mailed within 30 days of purchase, or within 30 days of installation when installed by a factory-certified installer. The applicable Authorized Dealer Code Number and Certified Installer number must be included for warranty coverage to begin.