Supply Air Units

Spring Air Systems offers indoor and outdoor supply air units for a wide range of commercial kitchen settings and supply air requirements. Our own indirect-fired unit is ideal for applications where fresh air is required or direct-fired units are not permitted. We also offer direct-fired units made by AbsoluteAire that provide maximum combustion efficiency and energy savings.


  • Indirect gas-fired unit designed to introduce 100 percent fresh air
  • Used in commercial buildings and institutional settings, as well as open kitchens
  • Provides maximum energy savings with demand controlled ventilation systems
  • Simple to operate and reliable


  • Direct gas-fired unit
  • High design flexibility and application versatility
  • Used in closed kitchens and buildings with combined kitchen and dining room
  • Energy efficient and economical