OUR PRODUCTS - The Inside Story On Outdoor Wood Furnaces Central Boiler outdoor wood burning furnace models are engineered to be the most efficient outdoor wood furnaces available while providing the best durability, low maintenance features, and an appealing fit and finish. We carry a complete selection of parts and accessories to simplify the installation and maintenance of your system. |
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| E-Classic 1400 | E-Classic 2300 |
E-Classic 2300 Dual Fuel Model | |||
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| Door: | 18.5"x18.5" | Door: | 23"x29" | Door: | 23"x29" |
| Firebox: | 32"x24"x32.5" | Firebox: | 36"x30"x41" | Firebox: | 36"x30"x41" |
| Weight: | 2,085 lbs | Weight: | 2,900 lbs | Weight: | 3,000 lbs |
| Water Capacity: | 195 Gallons | Water Capacity: | 450 Gallons | Water Capacity: | 450 Gallons |
| *Heating capacity similar to the CL 6048. *Replaces up to 800 gallons of fuel oil per month. |
Gas Backup Burner: | 175,000 Btu | |||
| Gas-fired Wood Ignition Burner: | 60,000 Btu | ||||
| *Brochures are in PDF format. Please visit Adobe.com to download Acrobat Reader. | |||||
Classic
Our Classic models are manufactured using heavy gauge carbon steel and have proven their durability over many years of service. The Classic models are available in a choice of 9 different colors with the exception of the CL 7260 and the Pallet Burner which are available in charcoal. All of the Classic models are available as a Dual Fuel Ready Model (standard on the CL 7260 and Pallet Burner). Fuel Burner is sold seperately.

Features:
Vent Cap: Design eliminates evaporation. - High Capacity Water Jacket: Receives multiple tests to ensure welding integrity. Certified high quality steel used - no mixed metals.
- Ripple Top® Design: For increased heat transfer area and lower maintenance.
- Large, Insulated Cast-Iron Door: Ergonomically designed with a large door for easy loading. Door is insulated for maximum efficiency. Door parts are powder coated for increased paint durability.
- Automatic Draft Control: Thermostatically controls water temperature in system.
- Skid Base Framework: Makes installation easy with or without cement foundation. Only the CL 7260 and Pallet Burner require a slab.
- Welded Steel Framework: Heavy-gauge framework engineered for enhanced strength of side panels and roof.
- Insulated Chimney: The chimney is a type HT listed factory-built chimney for wood burning appliances. Two 4-foot chimney sections standard.
- Rear Exhaust Outlet: Increases efficiency. Eliminates leaks and corrosion that competitors experience from chimneys that exit through the roof. Designed for easy inspection. Reduces heat loss by over 50%.
- Water-Filled HeatLock Baffle™: Creates secondary combustion area. Traps heat in firebox - will not warp or burn out with extreme heat.
- Urethane Foam Insulation: Insulation is sprayed on and forms a 100% airtight seal around the water jacket.
- Rectangular Firebox: Engineered with stay pins- will not collapse like round designs can.
- Ash Pan: 3/8" thick, formed ash pan is durable and easy to clean. (1/4” thick, formed ash pan on stainless steel models.)
- Fan Draft option available for all models.
- A dual fuel ready option is also available which allows the furnace to be fitted with a fuel oil, natural gas, or propane burner.
Color Options
Because property owners' tastes vary when it comes to color preference, Central Boiler outdoor wood furnaces are available in several color options.

What size furnace do you need?
Use our Sizing Chart to find the
model that will best meet your heating needs.
*Brochure is in PDF format. Please visit Adobe.com to download Acrobat Reader.
| Classic CL 4030 |
Classic CL 5036 |
Classic CL 6048 | |||
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| Door: | 20"x20" | Door: | 23"x23" | Door: | 23"x31" |
| Firebox: | 40"x30"x26" | Firebox: | 50"x36"x30" | Firebox: | 60"x48"x36" |
| Heat Transfer Area: |
52 sq ft | Heat Transfer Area: | 74 sq ft | Heat Transfer Area: | 119 sq ft |
| Weight: | 1,350 lbs | Weight: | 1,670 lbs | Weight: | 2,450 lbs |
| Water Capacity: | 140 Gallons | Water Capacity: | 196 Gallons | Water Capacity: | 393 Gallons |
| *Replaces up to 250 gallons of fuel oil per month. |
*Replaces up to 500 gallons of fuel oil per month. |
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| Classic CL 7260 |
Pallet Burner |
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| Door: | 30"x40" | Door: | 54"x50" |
| Firebox: | 72"x60"x40" | Firebox: | 72"x66"x54" |
| Heat Transfer Area: |
170 sq ft | Weight: | 4,880 lbs |
| Weight: | 3,910 lbs | Water Capacity: | 556 Gallons |
| Water Capacity: | 764 Gallons | Business solution for light commercial or industrial use. |
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| *For more than residential heating. *Heating capacity similar to the CL 7260. *One year warranty. |
*Heating capacity similar to the CL 7260. *One year warranty. |
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*Actual performance examples have been relayed to Central Boiler by Central Boiler Classic furnace owners.
**Btu ranges vary widely with different types of wood.
The Maxim - Our Outdoor Wood Pellet and Corn Furnace
The Maxim outdoor wood pellet and corn furnace is installed outside, next to your home like a central air conditioning unit or up to 500 feet away, and works with any existing heating system.
*Brochure is in PDF format. Please visit Adobe.com to download Acrobat Reader.
| Maxim M175 |
Maxim M250 |
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| Door: | 13.5" x 15.5" | Door: | 15.5" x 13.5" |
| Weight: | 1,200 lbs | Weight: | 1,310 lbs |
| Water Capacity: |
90 Gallons | Water Capacity: | 90 Gallons |
| Maximum Btu: | 175,000 | Maximum Btu: | 250,000 |
| Hopper Capacity: | 7 Bushel (360 lbs) | Hopper Capacity: | 11 Bushel (600 lbs) |
| Two 4-foot chimney sections are standard. Optional transfer auger and optional 43-bushel hex hopper available.Optional hopper extension kit available. | Two 4-foot chimney sections are standard. Optional transfer auger and optional 43-bushel hex hopper available. |
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Maxim M175 Cutaway View |
Maxim M250 Cutaway View |
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CLICK HERE for PDF cutaway (942KB) |
CLICK HERE for PDF cutaway (348KB) |
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Fusion® Combustor - The wood is gasified in the primary combustion firebox and these gases enter the Fusion Combustor where super-heated air is injected and mixed with the hot gases and the secondary combustion process starts.
Lockable Firebox Door - Ergonomically designed door features a large opening for easy loading. The heavy-duty door handle is durable and easy to use. Door is triple insulated for maximum efficiency. All parts are powder coated for high durability.
High Capacity Water Jacket - Provides a balance between firebox volume and water capacity for optimum performance and safety.










