Thursday, May 23, 2024

Twin Heat CS 120i Industrial Biomass Boiler

Twin Heat CS 120i Industrial Biomass Boiler

The Twin Heat CS 120i Industrial Biomass Boiler automatically burns wood pellets, grains, and wood chips as well as many of the other biofuels on the market. It has user-friendly oxygen control with all relevant functions, including set programs for wood pellets, grains, and wood chips.

In addition to the fuels for which it has technical approval, the CS system is also designed for burning light fuels such as wood chips, sawdust, and wood shavings and it can be combined with one of TwinHeat's fully automatic silo systems.

The CS system must be connected to an external silo via an auger conveyor.

  • Description
  • Specifications
  • Photos (0)
  • Pricing
  • Add Review

When burning homogeneous (uniform) fuels such as wood pellets and grains, users often have traditional feed silos erected indoors/outdoors or in a basement. More often than not, fuel is delivered by tanker and injected into the silo. The fuel is transported to the burner via a rigid or flexible auger.

The system is tested and has been granted technical approval by the Danish Technological Institute in accordance with DS/EN303-5 for the following fuel types: wood pellets, grains, and wood chips.

A TwinHeat CS system is delivered complete and ready for installation.  The system consists of three main component parts: boiler unit, water-cooled burner tube, and stoker unit. As standard, all CS systems are fitted with: cell lock, exhauster, sprinkler system, pressure guard, vacuum regulator, modulating oxygen control, bypass, and cleaning tools.


  • 3 boiler sizes covering outputs 341,000-853,000 BTU
  • Twin combustion fans  
  • Modulating Exhaust fan
  • Auto-ash removal & cleaning
  • Heavy-duty stoker auger drive
  • Low-pressure sensor
  • Nominal data plate output of 410,000 BTU

Specifications TwinHeat CS 120i
Heat Output (Wood Pellets) 410,000 BTU
Heat Output (Wood Chips) 307,000 BTU
Heat Output (Grain) 307,000 BTU
Efficiency at Nominal Output 90.1%
Efficiency at Partial Load 89.5%
Water content boiler 174 gal.
Flue gas outlet diameter 8.46"
Supply Connection 2"
Return Connection 2"
Sprinkler Connection 1/2"
Feeding Auger Connection OK7.1"/8.9"
Necessary Chimney Draft 20 Pa
Approximate power consumption 250 W

Heat Area (sq.ft.)
Fireplace Specific Options





Cooktop Material

Water Heating Options

Flue Orientation


Venting (Gas Stoves)


Viewing Area

Interior Style