A fan controller is an essential tool for keeping a stable, healthy climate in your grow room. By automatically adjusting your fan speed to the temperature (and, on some models, humidity), it keeps conditions just right for healthy plant growth. In this article we explain how a fan controller works, why it's a smart investment for any grower and which fan controllers you'll find at GrowDealz.
What does a fan controller do?
A fan controller manages the fans in your grow room by matching their speed to the climate. That means far less worrying about overheating or excessive humidity. The controller takes care of the right air exchange automatically, which helps prevent mould and other problems.
Benefits of a fan controller
- Automatic control: the fan controller adjusts your fan speed automatically to keep temperature and humidity within your target range.
- Energy savings: your fans only run as hard as they need to, so you use less power.
- Healthier plants: stable growing conditions mean stronger plants and a better harvest.
- Less noise: since your fans aren't running flat out all the time, your grow room gets a lot quieter.
Looking for fans that work well with a fan controller? Check out our fans and extraction fans.
Popular fan controllers at GrowDealz
Here are some popular models from our fan controllers range:
Dutch Masters Fan Controller DM-1000
A simple but effective fan controller, perfect for smaller grow rooms. The DM-1000 handles fans up to 1000 W and offers plug-and-play installation.
Dutch Masters Fan Controller with Thermostat DM-1500
This fan controller has a built-in thermostat, so you can control the temperature precisely. It's suitable for fans up to 1500 W and easy to install. The system automatically adjusts your fan speed based on the temperature in your grow room.
Inqontrol STC Twinmaster Fan Controller 14A
The Twinmaster lets you control two fans at once, for example your extraction fan and your intake fan. This powerful version handles fans up to 14 A, making it ideal for larger grow rooms that need more airflow. There's also a lighter 7A version of the Twinmaster for medium-sized spaces.
How do you install a fan controller?
Installing a fan controller is usually straightforward, although the exact steps vary by model. In general, this is how it goes:
- Connect the fans: hook your fans up to the fan controller as described in the manual.
- Place the temperature sensor: if your fan controller has a temperature sensor, put it in a strategic spot in your grow room, for example at canopy height.
- Configure the settings: set your target temperature or humidity. Your fans will then speed up as soon as the readings move outside the limits you've set.
- Test the system: make sure everything works and that your fans respond automatically to changes in your grow room.
Want to know more about the ideal climate? Read our article on the optimal grow room climate.
Frequently asked questions about fan controllers
Do I need a fan controller for my grow room?
Yes. Even in small grow rooms, a fan controller helps keep the climate stable, and that's essential for healthy plants.
Can I connect several fans to one fan controller?
Yes, some fan controllers, such as the Inqontrol STC Twinmaster Fan Controller 14A, can control two fans at the same time. Just make sure the total load stays within the controller's specifications.
How do I save energy with a fan controller?
By only running your fans as hard as necessary, you cut your energy costs. A fan controller like the Dutch Masters Fan Controller with Thermostat DM-1500 helps by automatically adjusting fan speed based on temperature.
Which fans work well with fan controllers?
Most standard (AC) fans, including many inline fans and extraction fans, work with a fan controller. Got an EC fan? Those often need their own controller, so always check the manufacturer's specifications.
