Osburn Everest lll Wood Fireplace - OB04017

The Osburn Everest III Wood Fireplace – OB04017 delivers exceptional wood-burning fireplace performance with authentic warmth, outstanding efficiency, and timeless style. Designed to heat spaces up to 2,500 square feet, this high-efficiency wood fireplace features advanced non-catalytic combustion technology that maximizes heat output while reducing emissions. Its versatile cast iron retractable doors allow you to enjoy efficient closed-door heating or the open-fire ambiance when paired with the optional firescreen, making it an ideal centerpiece for any living space. Expertly crafted in Canada, the Osburn Everest III Wood Fireplace combines durable construction with elegant black or brushed silver door finishes to complement both traditional and contemporary interiors. Engineered to meet strict environmental standards, this EPA-certified fireplace provides reliable supplemental heating while creating a cozy atmosphere throughout the winter. For homeowners seeking a powerful, efficient, and beautifully designed wood-burning fireplace, the Everest III offers lasting comfort and dependable performance. Appliance performance Specification Details Fuel Type Dry Cordwood (16" Recommended) Recommended Heating Area 750 – 2,500 sq. ft. Overall Firebox Volume 3.04 cu. ft. EPA Loading Volume 2.61 cu. ft. Maximum Burn Time Up to 8 Hours Maximum Heat Output 85,000 BTU/h (24.9 kW) Overall Heat Output Rate 25,900 – 78,200 BTU/h (7.6 – 22.9 kW) Average Overall Efficiency (HHV) 65% Optimum Overall Efficiency 71.6% Optimum Heat Transfer Efficiency 68% Average Particulate Emissions 1.9 g/h Average CO Emissions General features Specification Details Combustion Technology Non-Catalytic EPA Certification EPA 2020 Approved Maximum Log Length 20" Log Loading Front Loading (Over Width) Chimney Diameter 6" Flue Outlet Diameter 6" Compatible Chimney CAN/ULC S629, UL 103 HT (2100°F) Minimum Chimney Height 15 ft Baffle Type C-Cast or Equivalent Mobile Home Approved Yes (Canada Only) Door Type Double Ceramic Glass Doors with Cast Iron Frame Glass Type Ceramic Glass Glass Viewing Area 18 3/4" W × 11" H Glass Air-Wash System Yes Included Blower Premium Blower (176 CFM) Overall Dimensions 49 1/8" H × 41 7/8" W × 29" D Door Opening 20 3/4" W × 9 5/8" H Firebox Dimensions 18 3/4" W × 16 7/8" H × 17" D Firebox Lining Moulded Refractory Bricks Secondary Combustion System Stainless Steel Secondary-Air System U.S. Emissions Standard EPA Canadian Emissions Standard CSA B415.1-10 U.S. Safety Standard UL 127 Canadian Safety Standard ULC-S610 Certification Tested and Listed by an Accredited Laboratory (Canada/USA) Warranty Limited Lifetime Shipping Weight 555 lbs (252 kg) Approved chimney types Manufacturer Brand / Series Chimney Type Diameter American Metal HSS AC Triple Wall 6" (15 cm) American Metal HS AC Triple Wall 6" (15 cm) DuraVent DuraTech 1" Solid Pack 6" (15 cm) DuraVent DuraTech Canada DTC 1" Solid Pack 6" (15 cm) DuraVent DuraTech Premium 2" Solid Pack 6" (15 cm) DuraVent DuraPlus HTC 2" Solid Pack 6" (15 cm) DuraVent DuraPlus AC Triple Wall 6" (15 cm) Metal-Fab Temp Guard 1" Solid Pack 6" (15 cm) Olympia Chimney Champion Chimney System 1" Solid Pack 6" (15 cm) Olympia Chimney Rockford Chimney Systems 1" Solid Pack 6" (15 cm) Olympia Chimney – SBI Division Venting Ventis 1" Solid Pack 6" (15 cm) SBI Division Venting Nexvent 1" Solid Pack 6" (15 cm) Security Chimney ASHT 1" Solid Pack 6" (15 cm) Security Chimney S-2100 2" Solid Pack 6" (15 cm) Selkirk Ultimate Plus 1" Solid Pack 6" (15 cm) Selkirk CF Sentinel (CF) 2" Solid Pack 6" (15 cm) Selkirk Super Pro 2100 (ALT) 2" Solid Pack 6" (15 cm) Selkirk Super Vent 2100 (JM) 2" Solid Pack 6" (15 cm) Guides Everest III wood fireplace install & owner's manual Everest III dimensions Wood fireplace manual | Safety notifications & general information Faceplates installation instructions