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PRO 11 wood boiler, 55K BTU

Heating Capacity: Up to 1,500 ft²

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$3,745.39 $3,370.85
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  • Hydronic-ready designBuilt for reliable hot-water
  • 86% efficiencyHigh-efficiency heat output lowers fuel cost
  • Durable steel buildRobust steel construction for long-term use
  • No electricity requiredOFF-Grid operation without external power
  • Built for long service lifeFor everyday use with lasting performance

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PRO 11 wood boiler, 55K BTU

PRO 11 wood boiler, 55K BTU

$3,745.39 $3,370.85

Total price: $3,745.39

TIS PRO Series Wood Boiler

Main Features

  1. Hydronic-ready design

    Built for reliable hot-water central heating systems

  2. 86% efficiency

    High-efficiency heat output lowers fuel cost

  3. Durable steel build

    Robust steel construction for long-term use

  4. No electricity required

    OFF-grid operation without external power

  5. Built for long service life

    For everyday use with lasting performance

  6. Wide capacity range

    Available from 10 to 102 kBTU to suit any residential or commercial space

TIS PRO Series wood boiler main features overview
TIS PRO Series wood boiler

Heating Capacity

The TIS PRO series offers a wide range of heating capacities, from 10 to 102 kBTU, providing customized and efficient solutions for heating residential and commercial spaces of various sizes, ensuring optimal comfort and reducing energy costs.

Water Pressure Management

To ensure safe operation, the water pressure must not exceed 15 psi. It is essential to use a safety valve as specified in the manual. The maximum test pressure is 50 psi.

Maximum Working Temperature

All TIS PRO models have a maximum working temperature of 185°F. This temperature should not be exceeded to ensure safe operation and to prevent damage to the boiler components. Maintaining the temperature within this limit is crucial for optimal performance and safety.

Fuel Efficiency

The TIS PRO series boasts an 86% efficiency rating, translating to lower fuel costs and improved energy efficiency. This high efficiency makes the TIS PRO series a cost-effective choice for heating applications, reducing your environmental impact while maximizing your savings.

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Technical specifications

Product-specific specifications for the TIS PRO 11 wood boiler.

Heat area 1,500 ft²
Weight 400 lb
Width 15 in.
Depth 22 in.
Height 45 in.
Firebox size 9 gal
Log length 11 in.
Power supply No electricity needed
Water flow through boiler 2.20 GPM
Hydraulic resistance Up to 1.45 PSI
Chimney diameter 4.25 in.
Fuel types Wood, coal, and briquettes
Efficiency 86%

Maximum working temperature is 185°F. Water pressure must not exceed 15 psi; use a safety valve as specified in the manual.

Product documents

Access the official product documentation below.

Product details

WOOD BOILER – 55K BTU (PRO 11)

Compact and efficient manual-feed biomass boiler designed for off-grid heating without electricity, delivering reliable performance with clean combustion and thermostatic control for smaller residential spaces.

 

Key Benefits

  • Operates without electricity, ideal for off-grid systems
  • Burns wood, coal, and woodchips with high efficiency
  • Thermostatic air control ensures stable and efficient combustion
  • Compact design fits easily in limited spaces
  • Compatible with thermosiphon circulation (no pump required)

 

Specifications

  • Heating Capacity: Up to 1,500 ft²
  • Output: 55,000 BTU
  • Weight: 400 lb
  • Dimensions: 15" W × 22" D × 45" H
  • Firebox Volume: 9 gallons
  • Log Length: Up to 11"
  • Fuel Type: Wood, coal, woodchips
  • Origin: Made in Europe

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