---
title: How does an exhaust fan system work?
description: Exhaust fan systems are a combination of a motor, intake shutters and a controlled thermostat in your greenhouse.
---

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# How does an exhaust fan system work?

## Exhaust fan systems are a combination of a motor, intake shutters and a controlled thermostat.

The greenhouse can use up to 1 air change per minute during peak high temperatures. Exhaust fan packages allow the greenhouse to exchange air with the outdoor environment to reduce overheating and to aid in normalizing the greenhouse temperature. We can help you choose the right size and number of exhaust fans for your greenhouse design. We have three different sizes to choose from depending on the[air volume in your greenhouse](https://www.bcgreenhouses.com/accessories/exhaust-fans/).  

Check out the video for a visual explanation!

<iframe src="https://player.vimeo.com/video/585516665?h=89fbaa02b1&amp;app_id=122963" width="640" height="360" frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen title="BC Greenhouses Exhaust Fan Packages" style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border: none;"></iframe>

 

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