(800) 535 - 8196 | Sales@Spraytech.com

Make Up Air Unit

Spray Tech / Junair manufactures highly efficient direct-fired gas furnaces, which convert 98% of the fuel into heat. We also offer an 80% re-circulation system to further increase fuel efficiency. Variable Frequency Drives (VFD’s) are used to balance air pressure, extend exhaust motor life, and increase energy savings.
Our indoor and outdoor air make-up units offer you a wide range of options to choose from to meet your specific requirements. We are a leading manufacturer of high-performance direct-fired gas furnaces and also specialize in manufacturing custom-built solutions. Our energy efficient duct furnaces can be ordered with various different options so it fits your specific requirements.
Email: Sales@Spraytech.com for more information.


  • Horizontal and vertical configurations
  • Interior and exterior installation approved
  • Single, two speed, and multi-speed fan controls
  • Manufacturing, aerospace, building, automotive, industrial
  • Custom applications / Process heat
  • Complete engineering services available
  • UL listed components for years of trouble-free service
  • Powder coating over G-90 galvanized steel


  • Two-year Parts Warranty on all models


Unparalleled ease of installation and servicing through:

  • Extra large access doors and viewing windows on both sides
  • Circuit board mounted relays make servicing easy
  • Manifold mounted gas pressure gauge
  • Built-in electrical disconnect
  • Built-in temperature sensor
  • Primary and secondary circuit breaker protection
  • RJ-45 connection between heater and remote panel
  • Automatic heat on demand- No summer / winter switch

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