Osburn 3500

Osburn: 3500 Wood Fire Black Door

LAST ONE REMAINING 

Incl. Pedestal and black door trim

The Osburn 3500 Wood Fire is a robust, high-capacity freestanding heater designed to keep large homes cozy even in the most extreme winters. Furthermore, its sleek metallic-black steel design with a ceramic-glass door complements both contemporary and traditional interiors. Additionally, dual features like the included blower and air-wash help distribute clean, warm air—reducing fuel use while enhancing comfort. As a result, it’s perfect for open-plan layouts and colder climates.

Moreover, this powerful heater delivers remarkable performance through its non-catalytic combustion system. With up to 110,000 BTU (32.2 kW) output, it efficiently heats up to 250–270 m² (1,000–2,700 ft²), thanks to its large 3.5 cu ft (0.099 m³) firebox. In addition, it achieves optimum efficiency of 77% and emits just ~1.3 g/kg (1.6 g/hr), making it one of the cleanest large stoves available. Therefore, thanks to a long 10-hour burn time and durable steel construction, the Osburn 3500 offers reliable warmth and eco-friendly performance.

Osburn 3500 Wood Fire Key Features:

• Heats areas up to 250–270 m² (1,000–2,700 ft²)

• Impressive 32.2 kW / 110,000 BTU peak output

• Huge 3.5 cu ft (0.099 m³) firebox holds 22″ (558 mm) logs

• 77% optimum efficiency, non-catalytic design

• Clean emissions: ~1.3 g/kg (1.6 g/hr)

• Includes 130 CFM blower for optimal heat distribution

• Glass air-wash keeps viewing window clear

• Up to 10 h burn time with consistent heat

• Heavy-duty steel with refractory brick lining

• Approved for mobile-home use

• Limited lifetime warranty

Technical Specifications:

• Heating Capacity: 250–270 m² (1,000–2,700 ft²)

• Peak Output: 32.2 kW / 110,000 BTU/h

• Firebox Volume: 3.5 cu ft (0.099 m³)

• Max Log Length: 22″ (558 mm)

• Optimum Efficiency: 77%

• Average Emissions: ~1.3 g/kg (1.6 g/hr)

• Burn Time: Up to 10 hours

• Blower: 130 CFM variable-speed included

• Glass Window: 18 7/8″ × 11 3/4″ with air-wash

• Construction: Steel body & refractory brick lining

• Dimensions (WxHxD): 733 × 883 × 850 mm

LAST ONE REMAINING 

Incl. Pedestal and black door trim

The Osburn 2000 wood heater is one of the latest additions to the Osburn family of wood fireplaces. Its cast iron door features the distinctive lines you’ve come to except from Osburn, giving it a look combining the contemporary and the traditional. The Osburn 2000 will delight the most serious of wood fire enthusiasts who want both style and heating power. Its variable speed fan and optional cast-iron legs make the Osburn 2000 the most sought-after model of the season.