Overview
Beyond the Size!
Osburn Horizon Wood Fireplace - Osburn Horizon Zero Clearance Wood Fireplaces Insert OB04010 - This wood fireplace offers peace of mind due to the combination of energy efficiency and clean heating. A simple solution; its clean design suits any type of decor.
Large fireplace. Behind its large glass door, the 4.28 cubic foot combustion chamber can hold an impressive 60 lbs of wood.
Low emissions. This energy efficient fireplace complies with the EPAs clean-air standards (only 1.6 g/hr of emissions).
High efficiency. The Horizon fireplace is capable of heating large spaces and burns for 10 hours.
New Option - NightFlame Ceramic Glass
The ROBAX® NightFlame ceramic glass panels feature an elegant design in all circumstances, thanks to glass that changes appearance when the fire goes out. This new technology conceals the interior of the fireplace when not in use, while providing a clear view of the fire when it burns.
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.
() Recommended heating area and maximum burn time may vary subject to location in home, chimney draft,heat loss factors, climate, fuel type and other variables. The recommended heated area for a given appliance is defined by the manufacturer as its capacity to maintain a minimum acceptable temperature in the designated area in case of a power failure.
(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 technology | Non-catalytic |
| High-efficiency certified appliance | Yes, EPA 2020 approved |
| Maximum log length | 25" |
| Log positioning | Loading over width |
| Chimney diameter | 8" |
| Flue outlet diameter | 8" |
| Type of chimney | CAN/ULC S629, UL 103 HT (2100 °F) |
| Minimum chimney height (feet) | 15' |
| Baffle type | C-Cast or equivalent |
| Approved for a mobile home installation | No |
| Shipping Weight | 560 lb (254 kg) |
| Door type | Double, glass with cast iron frame |
| Glass type | Ceramic glass |
| Glass surface – dimensions (Width X Height) | 29 3/4" X 13 1/2" |
| Glass air-wash system | Yes |
| 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 bricks | Yes |
| Stainless-steel secondary-air system improving gas combustion | Yes |
| 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 standards | By an accredited laboratory (CAN/USA) |
| Warranty | Limited lifetime |
| Minimum clearances to combustibles* (Data expressed in inches. 1 inch = 25.4 mm) | ||
| Canada | United-States | |
| Clearance – top (measured from the platform on which the appliance is installed)** | 84" | 84" |
| Clearance – combustible side mantle to unit | 8" | 8" |
| Clearance - side wall | 24" | 24" |
| Clearance - from the shelf to the base of the fireplace | N.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. | ||
GUIDES
Horizon wood fireplace install & owner's manual
(PDF - 16.9 Mo)Horizon dimensions
(PDF - 0.3 Mo)Horizon wood fireplace quick install reference guide
(PDF - 0.6 Mo)Faceplate Installation Instructions
