MBtek
EKO DUO 95 Hybrid Coal Boiler, 330K BTU

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Hybrid Coal Boiler — EKO DUO

EKO DUO 95 Hybrid Coal Boiler, 330K BTU

Heating Capacity: Up to 9,000 ft²

Largest regular-tier EKO DUO for large homes and mid-size commercial hydronic projects.

$13,181
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  • UNI wood boiler installed in a green mechanical room beside a vertical water storage tank.
  • UNI wood boiler installed beside an expansion tank and copper hydronic piping in a mechanical room.
  • UNI wood boiler installed with copper hydronic piping, pumps, valves, and temperature controls.
  • MBTEK boiler system with a black and orange cabinet unit and orange hopper in a utility basement.
  • Side view of an orange EKO Duo hybrid coal boiler and integrated fuel hopper in a concrete mechanical room.
  • Side view of an EKO Duo boiler with closed access doors and digital controller in a mechanical room.

Installed in real homes and workshops

Customer Success Stories

We replaced our aging system with this MBtek wood boiler and the savings were immediate. It burns so efficiently, we're using significantly less wood to get much more consistent, powerful heat. It's transformed our monthly budget.

Slash Your Heating Bills

Maximize savings with high-efficiency automated wood chip combustion.

Product details

  • Multi-fuel versatility
  • Extended autonomy
  • True hybrid system
  • Smart continuous cycle

EKO DUO 95 Hybrid Coal Boiler, 330K BTU

High-output automatic self-cleaning Hybrid Coal Boiler for demanding hydronic systems, combining extended hopper capacity with the EKO DUO multi-fuel combustion platform.

Key Benefits

  • Automatic self-cleaning burner with rotary cast iron design for reliable solid-fuel combustion
  • Flexible multi-fuel capability for coal, pellets, grains, and biomass up to 1 1/2", plus manual feeding for wood chips and peat briquette
  • Guaranteed 90% efficiency with a design focused on complete heat recovery
  • TIS tronic 481R controller manages combustion, pumps, mixing valves, storage, and hydronic operating modes
  • Extended autonomy from the automated hopper and ignition strategy reduces day-to-day intervention
  • Front-access maintenance with ASTM A106 boiler steel construction and wide cleaning access

Specifications

  • Heating Capacity: 330,000 BTU
  • Recommended Area: 9,000 ft²
  • Automatic Fuel Range: Coal up to 1 1/4"; also burns pellets, grains, and biomass
  • Manual Firebox: 56 gal with up to 30" logs
  • Hopper Volume: 238 gal / 1,930 lb of coal
  • Dimensions / Weight: 64 1/2" W x 40" D x 67" H; 1,950 lb
  • Coal Types: Anthracite and bituminous; rice, buckwheat, pea, and stoker sizes
  • Warranty: 10 years
Capacity (modulation range)
154–338 KBTU
Heat area
Up to 9,000 ft²
Relief valve
30 psi
Water volume
46 gal
Connection
2 in
Chimney
8 in
Hopper volume
238 gal

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