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Compact BIO DUO wood chip boiler and hopper shown from an angled view

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Wood Chip Boiler — BIO DUO Residential

BIO DUO 50, Wood Chip Boiler 170 KBTU

Heating Capacity: Up to 5,000 ft²

Residential-tier automated wood chip heat for large homes, estates, and light-commercial buildings.

Model
BIO DUO 50 - 170K BTU · Up to 5,000 ft²
Hopper Size
Standard 2.0 yd³ (400 US gal)
Automatic Igniter
No
Automatic Ash Removal
No

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What Our BIO DUO 50 - 170K BTU Works With

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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

We chose the BIO DUO wood chip boiler for reliable, high-capacity heating with less daily handling. The automatic fuel feed keeps the system supplied, while the smart controller and large heat exchanger maintain steady combustion and deliver the consistent output our facility needs.

Reliable Wood Chip Heating for Large Facilities

Automatic fuel feeding, controlled combustion, and heavy-duty hydronic performance for commercial and industrial buildings.

Product details

  • 86% efficiency
  • Automatic fuel feed
  • Front-access cleaning
  • Wood chip fuel

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
  • 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: 1,433 lb
  • Fuel Type: Wood chips
  • 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

Made in Europe

Output
50–170 KBTU (15–50 kW)
Heat area
Up to 5,000 ft²
Efficiency
86%
Maximum operating temperature
85°C / 185°F
Maximum working pressure
15 psi
Water volume
37 gal
Water flow
9.7 GPM
Hydraulic resistance
2.9 psi
Connection
2 in
Chimney diameter
8 in
Boiler size (W × D × H)
26.80 × 69.30 × 53.15 in
Boiler weight
4,078 lb
Hopper weight
1,433 lb
Furnace
159 gal, 21.65 × 14.57 × 36.22 in
Maximum fuel use
21.6 lb/h
Fuel
Wood chips, 10.2 MJ/kg (2,438 kcal/kg)

Complete the system

What Our BIO DUO 50 - 170K BTU Works With

Apollo DHW80 stainless water heater tank shown from the front

Water heater tank

Store heat and make hot water

The combined buffer and indirect tank stores boiler heat and supplies household hot water — no separate water heater needed.

View details
Model
DHW80 · 80 gal
$3,058
$2,44620% off

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