The new Osburn 2500 pellet stove offers an entry-level option with the classic look of a wood stove, similar to the 3000 model. Built with high-quality materials—including premium Canadian steel, German-imported ceramic glass, and stainless steel heat exchangers—it delivers durability and performance at a competitive price, with eligibility for select government incentives.
Designed for efficiency, the Osburn 2500 boasts an impressively low emissions rate of just 0.96 g/h, meeting top environmental standards. Featuring intuitive electronic and thermostatic controls, tool-free maintenance, and easy installation, it’s a hassle-free heating solution for any home.
Options:
OB-AC01240 - 3" Diameter x 5' Fresh Air Intake Kit
OB-AC01393 - Hopper Extension
OB-AC01460 - Storage Tank with Pneumatic Self-Feeding Pellet System
OB-AC01462 - Storage Tank Extension for OB-AC01460
OB-AC01463 - Stand Alone Auxiliary Discharge Tank
OB-AC01464 - Leg Assembly for OB-AC01463 Discharge Tank
OB-AC01465 - 2" Diameter x 25' Anti-Static Flex Hose
OB-AC02092 - 3" Diameter x 10' Insulated Flex Pipe for Fresh Air Intake
OB-AC02704 - Tempered Glass Hearth Pad 10mm - 44" x 36"
OB-AC05558 - Digital Wall Thermostat
General features
Hopper capacity: 60lb (27kg)
Height x Width x Depth - Overall: 33" X 25 7/8" X 30"
Average particulate emissions rate: 0.96 g/h
Shipping Weight: 286 lb (130 kg)
Maximum heat input rate: 39,260 BTU/h (11.5 kW)
Recommended heating area -ft²: 500 - 2,000
Maximum burn time: 51h
Combustion technology: Top-feed
Approved for an alcove installation: Yes
Blower Included: Yes
High-efficiency certified appliance: Yes, EPA 2020 approved
Electronic igniter: Yes
Flue outlet diameter: 3"
Type of chimney: ULC/ORD-C441, CAN/ULC S609, UL 641 (TYPE L)
Baffle type: Stainless steel
Approved for a mobile home installation: Yes
Warranty: Limited lifetime
Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
United-States
Clearance - back wall 3"
Clearance - corner 3"
Clearance - side wall 6"
Clearance - (measured from the platform on which the appliance is installed) 48"
Canada
Clearance - back wall 3"
Clearance - corner 3"
Clearance - side wall 6"
Clearance - (measured from the platform on which the appliance is installed) 48"
* 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.
Door type: Single, glass with cast iron frame
Glass type: Ceramic glass
Glass surface – dimensions (Width X Height): 17 1/4" X 9 1/2"
Glass air-wash system: Yes
Noise level at 6 feet: 47 bBa (+/- 3 dBa) - 60 dBa (+/- 3 dBa)
Overall dimension (Height): 33"
Overall dimension (Width): 25 7/8"
Overall dimension (Depth): 30"
Adjustable threaded legs: Yes
Voltage and frequency: 120 VAC - 60 Hz
AC Current: 1.3A/120VAC - 2.5A/120VAC
Main control board fuses: 8A - 250V
USA standard (emissions): EPA
Canadian Standard (emissions): CSA B415.1-10
USA standard (safety): UL 1482, ASTM E1509
Canadian standard (safety): ULC S627
Tested and listed as per applicable standards: By an accredited laboratory (CAN/USA)
Appliance performance (1)
Fuel Type: Pellet (Premium grade or better) (2)
Recommended Heating Area ft² *: 500 - 2,000
Hopper capacity: 60 lb (27kg)
Maximum burn time*: 51h
Maximum Heat Input Rate (3): 39,260 BTU/h (11.5 kW)
Overall heat output rate < (4): 6,648 BTU/h (1.95 kW) to 28,540 BTU/h (8.36 kW)
Average overall efficiency (5) : 70.3 % (HHV) (6) 75.8% (LHV) (7)
Optimum efficiency (8)(9) : 78.4%
Optimum heat transfer efficiency (10): 73%
Burn rate: 1.2 - 4.7 lb/h
Average particulate emissions rate (11) : 0.96 g/h
Average CO (12) : 7.6 g/h
Average electrical power consumption - ignition cycle (13): 2.60A (312W)
Average electrical power consumption for continuous operation (13): 2.5A (140 W)
(1) Values are as measured per CSA B415.1-10, except for the recommended heating area, hopper capacity, maximum burn time and maximum heat input rate. Results may vary depending on pellet quality, density, length, and diameter.
(2) Grades of pellet fuel are determined by organizations such as Pellet Fuels Institute (PFI), ENplus and CANplus.
(*) Recommended heating area and maximum burn time may vary subject to location in home, chimney draft, heat loss factors, climate, fuel type, feed rate, fuel level, 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 considering that the space configuration and the presence of heat distribution systems have a significant impact in making heat circulation optimum.
(3) Based on the maximum burn-rate and a dry energy value of pellet at 8,600 BTU/lb.
(4) As measured per CSA B415.1-10 stack loss method.
(5) Efficiency based on radiated and delivered heat when allowing cycling from high to low burn to simulate thermostat demand. LHV % is based on manufacturer’s estimation.
(6) Higher Heating Value of the fuel.
(7) Lower Heating Value of the fuel.
(8) Performances based on a fuel load prescribed by the standard at 7 lb/ftÂł and with a moisture content between 19% and 25%.
(9) Optimum overall efficiency at a specific burn rate (LHV).
(10) 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.
(11) This appliance is officially tested and certified by an independent agency.
(12) Carbon monoxide.
(13) Unless stated otherwise, measures were taken directly at the main power source and include all electrical components present in the appliance.
- Maximum Recommended Heating Area in Square Feet by Climate Zone
- Osburn Pellet Heating Warranty
- Osburn Accessories & Parts Warranty
- Warranty Registration
- 2500 Operation Manual
- 2500 Pellet Stove Dimensions
- 2500 Pellet Stove Installation Manual
- Storage Tank With Pneumatic Self Feeding Pellet System Manual
- Digital Wall Thermostat
- Hopper Extension Manual
- How To Replace Convection Blower
- How To Replace Exhaust Blower
- How To Replace F-160 Thermodisc
- How To Replace Igniter
- How To Replace I-250 Thermodisc
- How To Replace the Combustion Blower
- How to Replace Auger Motor
- How to Access Fuses
- Stand Alone Auxiliary Discharge Tank Manual
- Storage Tank Extension Manual
- Troubleshooting
- Components Location