Outdoor Wood Furnaces


Central Boiler E-Classic

Central Boiler E-Classic 3250 IR

The Central Boiler E-Classic 3250 IR Outdoor Wood Furnace is EPA Phase 2 qualified. The E-Classic 3250 IR is the largest Phase 2 furnace manufactured, able to heat multiple buildings as large as 20,000 square feet. The efficiency of the E-Classic 3250 IR eliminates the need for multiple wood stoves, and the labor associated with maintaining those older, traditional models.


Door - 22.5"W x 28.5"H
Firebox Length - 40"
Firebox Volume - 32 cu ft
Weight - 3,240 lbs
Water Capacity - 410 gal.
Supply/Return Ports, 3/4" - 2 each
Supply/Return Ports, 1-1/4" - 1 each
Measurements and Foundation Dimensions - Illustration
Manufacturer's Rated Heat Output Capacity - 245,000 Btu/hr*

*Based on EPA qualifying test.

The Firestar XP WiFi Module lets you monitor your E-Classic Outdoor Wood Furnace from anywhere with your computer, smart phone, or web enabled device.
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E-Classic Model Features

1. Charge Tube - Crossfire air system adds preheated air in all the right places around the base of the fire. As the wood begins to gasify, the gases are added to the extremely hot oxygen from the patent-pending Charge Tube. This starts the secondary combustion process.

2. Large Reaction Chamber™ - Final combustion takes place as these gases move downward to the Reaction Chamber. Temperatures exceed 2000°F, resulting in very complete combustion. This entire process gives this furnace its high efficiency and extremely low emissions. The large, hinged door provides for easy ash removal.

3. Optional Gas-fired Wood Ignition - Takes the work and worry out of lighting a fire. With just the push of a button, the power ignition will light the fire. It will also automatically relight the fire if needed, even when you are away from home. It is just that easy.

4. Urethane Spray Foam Insulation - Covers the water jacket gives you the best energy savings, even when the conditions outside are at their worst. This insulation provides a 100% airtight, waterproof seal around the water jacket which makes your wood pile last longer.

5. High Capacity Water Jacket - provides a balance between firebox volume and water capacity for optimum performance and safety. Continues to supply heat after the wood load is depleted.

6. Insulated Chimney - Two 4-foot all stainless steel insulated chimney sections are standard. Additional sections are available for extending the chimney when needed.

7. All-Weather Steel Siding - Overlapped for tighter weather seal. Panels and corners are powder coated for high durability.

8. Vent Cap - Design eliminates evaporation.

9. Triple Insulated Firebox Door - Is just the right height and features a large opening for easy loading, making your job much easier. The ergonomically designed, lockable door features a Cam Loc door closure that secures the door at all four corners and provides a tight seal each time the door is closed. Its triple insulation keeps the heat in and the cold out for maximum efficiency.

10. Bypass Door - Allows you to redirect the exhaust before opening the firebox door. The Bypass Door Alarm reminds you to close the bypass door after you have closed the firebox door for efficient operation of your furnace.

11. LED Lights (Photo Electronic Controlled) - The long-lasting, energy efficient LED night lights save money and enhance safety. They illuminate the inside of the firebox and the front and sides of the outdoor furnace and can be set to conveniently, automatically turn on at night.

12. Xtract® Heat Exchanger - Allows you to get the most heat out of your wood. It is designed to optimize the transfer of heat from the extremely hot gases to the water. The vertical design of the heat exchanger minimizes the amount of maintenance.

13. FireStar™ II Electronic Controller - Optimizes the gasification process by automatically adjusting the primary and secondary air. This allows for a cleaner and more efficient burn.

14. Insulated Rear Access Panel - Gives you full access to the Reaction Chamber door, power disconnect and pumps, all from one location. That makes installation and maintenance convenient and easy. The insulated panel keeps the heat in and the cold out, which preheats the combustion air and makes the furnace more efficient.

15. U.S. EPA Certified.

Please note:

The efficiency of your Central Boiler E-Classic Outdoor Furnace is partly determined by proper sizing for your particular needs. Call Renewable Energies, LLC for more information on the right outdoor wood furnace option for you.

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