We are dedicated to providing innovative technologies, systems, products, and services to our agricultural customers with the highest level of integrity, thereby giving exceptional values.

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Sun-North Systems Ltd is the leading international manufacturer, distributor and installer of Natural Ventilation products. Sun-North Systems Ltd’s line of curtains, panels and exhaust systems are controlled by state of the art electronic controls will improve the level of comfort in all forms of livestock confinement buildings while dramatically lowering traditional energy costs.


CURTAINS: Sun-North Systems Ltd offers different kind of curtains for differerent operations:

  • Roll-Over Curtains

  • No Main Curtains

  • Weather Stop Curtains

  • Roll-Up Curtains

  • Original Top-Down

  • Split System Down

  • Parlor Curtains 

  • Winter Garden Curtains

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PANELS: Sun-North Panels are one of the most popluar panels are in Market. 

  • Nova-Lite XL Panels

  • Nova-Lite Vu Panels

  • Altra Seal Insulated Panels

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Ridge Exhaust System: 

  • Max-Vent Insulated Chimneys

  • Dura-Lite Ridge Vent

  • Dura-Lite Fixed Ridge

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Air Movement System: 

  • HVLS Ceiling Fans

  • Frest Air Makeup Systems

  • Dual Ventilation Systems

  • Cross Flow Ventilation

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Automation and Controls: 

  • Natural Ventilation controls

  • Dual Ventilation Controls

  • Linear Actuators

  • Power Drive Systems

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Envira-North Systems Ltd. is thrilled with the positive response to their Altra-Air Fan with WhalePower Technology™. These fans are a green power breakthrough which allows our High Volume Low Speed (HVLS) fans to deliver previously impossible levels of performance. Our energy efficient ceiling fans features a five-bladed design that can move more air than ever before with 20 percent more efficiency.

Envira North’s dairy fan provides cow cooling and bovine inspiration for dairy barn cooling. Third party studies on dairy fans have shown that agriculture fans lower the temperatures in dairy barns by 6 – 8 degrees. The cow cooling results in proven increased milk production. Utilizing the Altra-Air fan for cow cooling also creates energy savings and bovine inspiration. Click here for more information.