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BIO DUO 50, Wood Chip Boiler 170 KBTU

Heating Capacity: Up to 5,000 ft²

Automatic Wood Chip heating with continuous fuel feed

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Hopper Size
Automatic Igniter
Automatic Ash Removal

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Phoenix boiler installed in a mechanical room with copper hydronic piping, pumps, and controls.
UNI wood boiler installed in a green mechanical room beside a vertical water storage tank.
MBTEK boiler system with a black and orange cabinet unit and orange hopper in a utility basement.
Black and orange boiler installed in a mechanical room with wall-mounted hydronic manifold, pumps, and control panel.
Black and orange boiler installed beside a water tank and hydronic piping in a basement mechanical room.
Black and orange pellet boiler connected to a black fuel hopper and auger in a finished mechanical room.
Black and orange pellet boiler connected to a black hopper and auger in an unfinished framed mechanical room.
Side view of an orange EKO Duo hybrid coal boiler and integrated fuel hopper in a concrete mechanical room.
Pellet Duo boiler with its combustion chamber and heat exchanger access doors open.
UNI wood boiler installation with water tank, copper piping, expansion tank, and manifold.
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

See how customers use MBTEK boilers in real homes, workshops, and large properties.

  • 86%+ efficiencyHigh heat recovery from woodchip fuel
  • Automatic fuel feedContinuous woodchip operation
  • Front-access cleaningEasy service and ash removal
  • ASTM A106 steelHeavy-duty boiler construction
  • Safety controlsThermal water and fuel-line protection

Frequently Bought Together

BIO DUO 50, Wood Chip Boiler 170 KBTU

BIO DUO 50, Wood Chip Boiler 170 KBTU

Total price: $15,912

MBTEK BIO DUO Woodchip Boiler

Main Features

  1. Heating output

    Compact BIO DUO models deliver automatic woodchip heating for residential and light-commercial applications.

  2. Fuel flexibility

    Operates on wood waste fuel of varying quality for flexible day-to-day heating.

  3. Automatic fuel supply

    Integrated automatic feed keeps woodchip combustion steady and consistent.

  4. High efficiency

    Rated power efficiency is not less than 86% for dependable heat recovery.

  5. ASTM A106 steel

    Built from high-strength ASTM A106 boiler steel for long service life.

  6. Safety and warranty

    Thermal protection controls and a 10-year boiler-body warranty support reliable operation.

BIO DUO small woodchip boiler overview
BIO DUO small woodchip boiler detail

Automatic woodchip heating

Compact BIO DUO models pair automatic fuel feed with steady combustion for efficient woodchip heating.

Efficient heat recovery

The heat exchanger design helps smaller BIO DUO models maintain strong output with 86%+ efficiency.

Durable steel body

ASTM A106 boiler steel, thermal protection, and heavy-duty construction support long-term reliability.

Service-friendly design

Front-access cleaning and maintenance simplify routine service on compact BIO DUO installations.

Technical specifications

Product-specific specifications for the BIO DUO 50 woodchip boiler.

Power (heating capacity) 50 – 170 KBTU
Coefficient of efficiency 86%
Max. operating temperature 85°C / 185°F
Max. working water pressure 15 psi
Max. fuel consumption 21.6 lb/h
Water volume in the boiler 37 gal
Connections 2 in
Chimney diameter 8 in
Boiler weight 4,078 lb
Boiler width 26.80 in
Boiler depth 69.30 in
Boiler height 53.15 in
Fuel / calorific value Wood chips, 10.2 MJ/kg (2438 kcal/kg)

Recommended heating coverage: up to 5,000 sq ft, per MBTEK's collection sizing guide.

Technical & user manuals

This documentation covers many of the topics of interest to end-users and maintenance staff. For any additional inquiries, contact us.

BIO DUO 50, Woodchip Boiler 170 KBTU — Product Manual

Full product manual covering operation, maintenance, and safety guidance.

TIS TRONIC 660HD Controller Manual

Controller operating instructions, settings, and programming guidance.

Product details

WOOD CHIP BOILER – 170K BTU (BIO DUO 50)

High-performance biomass boiler designed for residential and industrial heating, featuring automatic fuel feeding, strong efficiency, and flexible fuel compatibility for reliable and continuous operation.

 

Key Benefits

  • Automatic fuel supply for wood chips and biomass fuels
  • Wide modulation range from 52,000 to 170,000 BTU
  • High efficiency of 86%+ for optimal energy use
  • Built with ASTM A106 boiler steel for durability
  • Advanced TIS TRONIC 660HD controller for full system automation

 

Specifications

  • Heating Capacity: Up to 5,000 ft²
  • Output: 52,000 – 170,000 BTU (15–50 kW)
  • Hopper Volume: 50 gal (500 lb woodchips)
  • Fuel Type: Woodchips (can also burn wood manually)
  • Insulation: 2" thermal insulation
  • Max Exhaust Temp: 355°F (180°C)
  • Application: Residential & industrial heating systems

 

Additional Features

  • Front-access design for easy cleaning and maintenance
  • Flexible hopper installation (left or right side)
  • Optional automatic ash removal and igniter system
  • Advanced safety system with fuel line temperature protection
  • Controller Functions: fan, feeder, pumps (CH/DHW), flue gas temp, outdoor sensor, thermostat compatibility
  • Warranty: 10 years

 

Made in Europe


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