Buck Stove Bay Series Model 91 Fireplace Insert

The Buck Stove Model 91 Fireplace Insert is a high-performance, heavy-duty wood-burning heating solution designed to transform a traditional masonry fireplace into a powerful and efficient home heating system. Built for large living spaces and cold-weather climates, this catalytic insert combines impressive heating capability, advanced combustion technology, and convenient maintenance features to deliver dependable warmth throughout the home.

The Buck Stove Model 91 Fireplace Insert has an impressive 4.4 cubic-foot firebox, providing generous capacity for extended burn times and improved heat output. The insert is capable of heating areas ranging from approximately 1,800 to 3,200 square feet, making it an excellent primary or supplemental heat source for medium to large homes. Delivering up to 50,400 BTUs, this unit provides powerful, consistent warmth warmth while maintaining controlled and efficient fuel consumption.

The Model 91 Fireplace Insert utilizes a catalytic combustor system that promotes secondary combustion of smoke and gases before they exit the chimney. This technology helps maximize heat extraction, reduce emissions, and improve overall fuel efficiency while allowing for longer, steadier burns. The unit achieves an impressive efficiency rating of approximately 80.4%, helping homeowners get more heat from every load of wood.

Designed for versatility and convenience, the insert accepts wood logs up to 22 inches front-to-back or approximately 23 inches side-to-side, allowing users to load larger pieces of firewood for extended burn cycles and reduced reloading frequency. An integrated ash drawer simplifies routine maintenance by allowing for quick, clean ash removal without interrupting operation. Choose between the standard 49.5" W x 32" H or the 55.5" W x 35" H flashing to seal around the insert, providing a finished look for the fireplace.

To further enhance heat circulation, the Model 91 Fireplace Insert comes equipped with a factory-installed blower system that distributes warm air more evenly throughout the room or home. Combined with Buck Stove’s high-efficiency heat exchange design and oversized viewing glass with air-wash technology, the insert provides both functional performance and an attractive fire display.

Built with durability and heating power in mind, the Buck Stove Model 91 Fireplace Insert remains one of the brand’s most popular large-capacity wood heating options. Its combination of a spacious firebox, catalytic efficiency, strong BTU output, and user-friendly maintenance features makes it an ideal choice for homeowners seeking reliable, long-lasting warmth from a traditional wood-burning fireplace system.

Features:

• Catalytic Combustion
• Optimum efficiency : 80.40%
• Average particulate emissions rate : 1.9 g/h
• Recommended heating area-ft² : ,1,800 - 3,200 square feet
• Included: Blower

Measuring for Your Buck Stove Model 91 Fireplace Insert