Heating a Grow Tent in Winter Safely
Heating a grow tent in winter takes the right heater in the right spot. Learn safe placement, shutoff features, outlet rules and smoke alarm basics.
Air Conditioning a Grow Room: Portable vs Mini Split
Air conditioning a grow room means a room unit or a mini split. Compare cost, noise and humidity control before sizing it to the heat your lights add.
Humidifiers for Grow Tents: Sizing and Placement
A humidifier for a grow tent works best when it is matched to how dry the air gets and placed so mist never lands on leaves. Learn sizing and setup.
Inline Fan Size for a Grow Tent: How to Work Out CFM
Inline fan size grow tent guide: multiply length, width and height for tent volume, then size the exhaust for about one air exchange per minute.
VPD Chart for Cannabis: Vapor Pressure Deficit Explained
VPD chart cannabis guide: what vapor pressure deficit measures, how temperature and humidity set it, and a worked chart of VPD values from 70 to 85°F.
Dehumidifiers for Grow Rooms: How to Choose and Place One
Grow rooms gain moisture from plants and wet media. Learn how growers choose and place a dehumidifier in a cannabis grow room or tent.
Oscillating Fans in a Grow Tent: Air Circulation
An oscillating fan in a grow tent keeps air moving so leaves dry. Learn where to place circulation fans for cannabis and how strong to run them.
How to Optimize Your Indoor Cannabis Growing Environment
Dial in your indoor grow: temperature, humidity, airflow, light and CO2 targets by stage, plus simple gear that keeps the room steady.
How to Build Your DIY Carbon Filter When Growing Cannabis
A carbon filter pulls tent air through a bed of activated carbon, also called activated charcoal, which helps reduce odor.