Keeping it Cool!

Hot spots can develop in grow rooms during the warmer times of year. Because a fan circulates the air the temperatures become more stable and even. This strengthens the stems of your plants and they become more resistant to pests.

Fans can also be pointed towards the appliances that produce heat such as your lights and ballasts. Where possible, keep these items outside of the grow space, with ballasts being easy to do.

As well as having fans to circulate the air, extracting air from the grow room helps to moderate the temperature by drawing fresh and cooler air from outside. To get the maximum effect from an extraction system make sure to link it up with a temperature control so that it works harder as and when required.

In addition, keep the air ducting as straight as possible, this reduces friction along with the associated heat and noise that is generated by curves and bends in the system.

Increasing the CO2 levels in a grow room can have a fantastic effect on the rate of growth. CO2 is effectively what your plants are breathing and naturally occurs in the atmosphere at a ratio of around 400ppm. Increasing this ratio to 1000ppm can increase your growth rates by over 20 percent. It also helps your plants to strive for growth in higher temperatures of about 30 degrees centigrade.

The lighting in your system can be one of the largest generators of heat but this is all changing for the better!

LED lighting has always been efficient and is becoming far cheaper to purchase and also has a lengthy life-span.

They generate far less heat and as a result they also save energy.



When running a lighting schedule run your lighting overnight where possible as the temperature is naturally cooler then.