Sika Plant, Düdingen, Switzerland


This project aimed to profit from waste heat from the air compressor and use it to save heating energy of the plant.

Project goal

Use the waste heat from the air compressor to heat the plant.


Installation of a heat exchanger, circulation pump, control valve and piping to supply the waste heat of the air compressor into the heating system of the adhesive plant.


  • Estimated reduction of natural gas consumption for heating the plant by 390'000 kWh/year (5% of the whole factory consumption)
  • Estimated reduction in CO2 emissions by 79 tons/year.
  • Estimated cost savings: CHF 29’000 /year
  • Estimated payback time: < 1.5 years