Product News: Huber expands the Unistat range with the new compact Chili Heating Circulation Thermostat

20 Feb 2020

With the new Chili, Peter Huber Kältemaschinenbau AG presents a compact, low-volume, hydraulically-sealed heating thermostat for use with closed-temperature control circuits. Part of the Unistat product family, the Chili is the smallest heating thermostat in the Huber range and is designed to be appropriate for use with Marlotherm as a heat transfer fluid. 

The device has a working temperature range of 65 to 300 °C and achieves temperature stability of +/-0.02 K. Measuring just 240 x 427 x 393 mm (W x D x H), only a small space for installation is required. It is small enough to be a direct replacement for existing “open-bath” heaters. Due to its technical characteristics and competitive pricing, the Chili is designed for applications such as distillation tasks in chemistry, pharmaceuticals, and botanical extraction. The hydraulically sealed temperature control circuit prevents the formation of oil vapors and oxidation, which results in an increased lifespan of the heat transfer fluid, adding further value. An external cooling coil (unregulated) is available as an optional accessory. 

As with all Unistats, the new Chili promises excellent thermodynamic characteristics and a professional range of functions, plus high-precision, reproducible thermoregulation results with reduced heating times and wide temperature ranges. Efficient energy management is designed to minimize operating costs and economic operation. 

The Pilot ONE multi-touch controller has a 5.7” touchscreen display with intuitive, icon-based menu navigation. Important functions and settings are accessible in a fast and simple manner thanks to the user-creatable favorites menu. Integrated USB and Ethernet ports enable connection to a PC or network for remote control, monitoring, and data recording.


  • Process heating thermostat for laboratories and industry
  • Marlotherm can be safely used as a heat transfer fluid (closed system)
  • Typical applications are thin/wiped film, short path distillation
  • Ideal for system installation and rack operation
  • Highly precise and reproducible thermoregulation results
  • Wide temperature ranges without fluid changes
  • Adaptive temperature control, self-optimizing PID controller
  • Pilot ONE controller with touchscreen and convenient menu navigation 
  • 2 x USB (host, device), Ethernet and RS232 interfaces
  • Highly efficient operation reduces working times and operating costs

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