Horizon Wood Fireplace by Osburn

SKU: OB04010

Starting at $5,849.00

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Beyond the Size!

The Osburn Horizon wood fireplace combines power, energy efficiency, and clean combustion to offer peace of mind and unmatched comfort. Its sleek and timeless design blends seamlessly into any décor, while delivering an exceptional heating experience.

Behind its wide glass door lies a spacious 4.28 ft³ firebox, capable of holding up to 60 lbs of wood, making it one of the largest in its category.

Thanks to its patented intelligent air control mechanism, the Horizon ensures optimal combustion while keeping emissions as low as 1.6 g/h, meeting the EPA’s strict clean-air standards.

Built for performance, this high-efficiency fireplace can heat expansive living spaces and deliver up to 11 hours of burn time, making it the ultimate choice for long, cozy winter nights.

🔥 New Option – NightFlame Ceramic Glass
The ROBAX® NightFlame ceramic glass panels add elegance in every situation. When the fire is out, the glass conceals the interior of the fireplace; when it’s burning, it offers a crystal-clear panoramic view of the flames.

With the Osburn Horizon, enjoy long-lasting warmth, outstanding efficiency, and refined design — all in one impressive fireplace.

Appliance performance (1)

Fuel type :Dry cordwood (16″ recommended)
Recommended heating area-ft² : ()1,000 – 2,800
Overall firebox volume-ft³ :4.28
EPA loading volume-ft³ :4.28
Maximum burn time : ()11 h
Maximum heat output-dry cordwood : (2)95,000 BTU/h (27.8 kW)
Overall heat output rate < : (2) (3)16,900 BTU/h (5.0 kW) to 43,000 BTU/h (12.6 kW)
Average overall efficiency (dry cordwood) : (3)64 % (HHV) (4)69 % (LHV) (5)
Optimum efficiency : (6) (7)70 %
Optimum heat transfer efficiency : (8)69 %
Average particulate emissions rate : (9)1.6 g/h
Average CO : (10)159.0 g/h

(1) Values are as measured per test method, except for the recommended heating area, firebox volume, maximum burn time and maximum heat output.

(2) The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft³ and 20 lb/ft³ and reloading intervals ranging from 60 to 120 minutes. Other performances are based on a fuel load prescribed by the standard without any reloading between start and finish. The specified loading density varies between 7 lb/ft³ and 12 lb/ft³. The moisture content is between 19% and 25%.

(3) As measured per CSA B415.1-10 stack loss method.

(4) Higher Heating Value of the fuel.

(5) Lower Heating Value of the fuel.

(6) Performances based on a fuel load prescribed by the standard at 7 lb/ft³ and with a moisture content between 19% and 25%.

(7) Optimum overall efficiency at a specific burn rate (LHV).

(8) The optimum heat transfer efficiency is for the low burn rate (using HHV) and represents the appliance’s ability to convert the energy contained in the wood logs into energy transferred to the room in the form of heat and does not take into account the chemical losses during combustion.

(9) This appliance is officially tested and certified by an independent agency.

(10) Carbon monoxyde.

General features

Combustion technologyNon-catalytic
High-efficiency certified applianceYes, EPA 2020 approved
Maximum log length25″
Log positioningLoading over width
Chimney diameter8″
Flue outlet diameter8″
Type of chimneyCAN/ULC S629, UL 103 HT (2100 °F)
Minimum chimney height (feet)15′
Baffle typeC-Cast or equivalent
Approved for a mobile home installationNo
Shipping Weight560 lb (254 kg)
Door typeDouble, glass with cast iron frame
Glass typeCeramic glass
Glass surface – dimensions (Width X Height)29 3/4″ X 13 1/2″
Glass air-wash systemYes
Premium quality blower included (CFM)176
Overall dimension (Height)43 3/8″
Overall dimension (Width)50 3/4″
Overall dimension (Depth)31 3/4″
Door opening – dimension (Height)12 3/4″
Door opening – dimension (Width)33″
Firebox – dimension (Height)17″
Firebox – dimension (Width)25 3/8″
Firebox – dimension (Depth)17 7/8″
Moulded refractory bricksYes
Stainless-steel secondary-air system improving gas combustionYes
USA standard (emissions)EPA / ASTM WK47329
Canadian Standard (emissions)CSA B415.1-10
USA standard (safety)UL 127
Canadian standard (safety)ULC-S610
Tested and listed as per applicable standardsBy an accredited laboratory (CAN/USA)
WarrantyLimited lifetime

Approved chimney types

Manufacturiers*BrandTypeDiameter
American MetalHSSAC Triple Wall8″ (20 cm)
American MetalHSAC Triple Wall8″ (20 cm)
DuraVentDuraTech1″ Solid Pack8″ (20 cm)
DuraVentDuraTech Canada DTC1″ Solid Pack8″ (20 cm)
DuraVentDuraTech Premium2″ Solid Pack8″ (20 cm)
DuraVentDura Plus HTC2″ Solid Pack8″ (20 cm)
DuraVentDura PlusAC Triple Wall8″ (20 cm)
Metal FabTemp Guard1″ Solid Pack8″ (20 cm)
Olympia ChimneyRockford Chimney Systems1″ Solid Pack8″ (20 cm)
Olympia ChimneyChampion Chimney System1″ Solid Pack8″ (20 cm)
Olympia Chimney/SBI Venting DivisionVentis1″ Solid Pack8″ (20 cm)
SBI Venting DivisionNexvent1″ Solid Pack8″ (20 cm)
Security ChimneyS-2100 +2″ Solid Pack8″ (20 cm)
SelkirkCF Sentinel (CF)2″ Solid Pack8″ (20 cm)
SelkirkSuper Pro 2100 (ALT)2″ Solid Pack8″ (20 cm)
SelkirkSuper Vent 2100 (JM)2″ Solid Pack8″ (20 cm)

* Specific components may be required depending on the chimney manufacturer.

Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
 CanadaUnited-States
Clearance – top (measured from the platform on which the appliance is installed)**84″84″
Clearance – combustible side mantle to unit8″8″
Clearance – side wall24″24″
Clearance – from the shelf to the base of the fireplaceN.A.N.A.

* The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner’s manual, catalogues, flyers, magazines and/or web sites).

** Some appliances have been tested with a low ceiling. Before setting up your unit, refer to the installation manual.

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Come and meet us

Rosemère

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3

Saint-Sauveur

175 Chem. Jean-Adam
Saint-Sauveur
QC J0R 1R6

Gatnineau

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3

Drummondville

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3