Optimising Your Grow Room Environment

Creating the perfect environment in your grow room or grow tent is essential for achieving maximum yields. The most important factors to consider are extraction, air circulation, humidity control, and ducting. Getting these right will keep your plants healthy and help them thrive.

Air Extraction Systems
A quality extraction fan is vital for removing hot, stale air and replacing it with fresh, CO₂-rich air. This ensures plants always have the oxygen they need while preventing heat build-up. Always choose an extractor fan with a little more capacity than you think you’ll need – this gives you spare power if your grow room setup changes.

Air Circulation
Air circulation is just as important as extraction. Using oscillating fans and proper ducting keeps air moving evenly across your grow room, preventing hotspots and reducing the risk of pests, mould, and disease. Fresh, moving air also strengthens plant stems and improves nutrient uptake.

Humidity Control
Humidity levels can make or break a grow. Too much humidity increases the risk of mould, while too little can stress plants and slow growth. Combining extraction with the right ducting setup allows you to regulate humidity more effectively. You may also need a humidifier or dehumidifier depending on your growing environment.

Grow Room Ducting
Choosing the right ducting is crucial for an efficient extraction system. High-quality ducting ensures minimal air resistance, reduces noise, and maximises airflow throughout your setup. Flexible or acoustic ducting can also help minimise bends and keep your extraction system running smoothly.

Pro Tip: To calculate the correct fan size, work out the total volume of your grow room and ensure your system can exchange the air at least once per minute.