EKO DUO 15 Hybrid Coal-Pellet Boiler 65K BTU Automatic

Automated Efficient Coal Boiler with Extended Autonomy

The Eko Duo boiler is designed for commercial use only, offering extended autonomy of up to 2 weeks. Optimized for burning coal up to 1¼", it features an automatic cycle to maintain hot ashes, ensuring easy ignition for the next fire. This versatile unit also supports burning pellets, grains, and other biomass, including manual feed for greater flexibility.

Key Specifications:

• Heating Capacity: 2,500 ft²
• Weight: 1,000 lb
• Dimensions (W x D x H): 43" x 25" x 62"
• Manual Firebox Capacity: 18 gal (max log length 15")
• Hopper Volume: 72 gal (holds up to 585 lb of coal)
• Compatible Coal Types: Anthracite and Bituminous
• Coal Sizes: Rice, Buckwheat, Pea, and Stoker
• Origin: Made in Europe
• Grade: Commercial grade for professional applications

The Eko Duo boiler is an ideal solution for efficient and extended heating, providing reliability and ease of use in demanding environments.

Eko Duo – Advanced Automatic Coal Boiler with High Efficiency

The Eko Duo represents the latest generation of automatic coal boilers, featuring a modern self-cleaning rotary cast iron burner, feeding auger, electric gear motor, large hopper, and a built-in backdraft prevention system. Designed for maximum fuel versatility, the bottom chamber efficiently burns coal, pellets, grains, and other biomass up to 1½", while the middle chamber allows for manual feeding of coal, wood chips, peat briquettes, and more. Its unique heat recovery design ensures a guaranteed efficiency of 90%, maximizing energy output.

Smart Automation with TIS Tronic 481R Controller
The advanced TIS Tronic 481R controller optimizes combustion based on user-defined parameters, weather conditions, exhaust sensor data, and fuel quality, offering seamless integration with modern hydronic heating systems, domestic hot water setups, and zone mixing designs. Key automation features include:

• Automatic modulation to match heating demand
• Standby and reignition mode when no heat is needed
• Circulation pump control
• Motorized mixing valve operation
• Buffer tank management
• Fuel level monitoring
• Summer/winter mode
• Thermostat feedback compatibility

Extended Autonomy and User-Friendly Maintenance
With a large hopper capacity, the Eko Duo provides 4 to 10 days of autonomy, minimizing refueling frequency. The wide front-access doors facilitate effortless cleaning of the top heat exchanger, middle loading chamber, and bottom ash removal, with all maintenance tasks easily performed from the front.

Premium Build Quality
Constructed from certified ASTM A106 boiler steel, the Eko Duo features a high-quality multi-layer coating, non-combustible 2" insulation, and thermal protection systems, ensuring long-term reliability and durability.

The Eko Duo boiler is an efficient, durable, and versatile heating solution, ideal for commercial applications requiring extended runtime, low maintenance, and high performance.