How do I calculate CFM for a grow tent?

Multiply your tent volume (in cubic feet) by 1.2. Increase by 20–30% if you're using filters or ducting turns.

Do I need an AC or just fans?

Fans may be enough for smaller tents. Larger rooms or hot climates may require air conditioning for proper cooling.

Dial in your cooling and airflow for smarter cultivation.

Estimate how much cooling and airflow your grow space needs based on light output and room size.

Grow Space Length (ft): Grow Space Width (ft): Grow Space Height (ft): Total Light Wattage (W): Number of Plants (optional): Insulation Quality:

What is BTU?
A BTU (British Thermal Unit) measures how much heat your grow room produces per hour.

Why does room size matter?
Larger rooms hold more heat and may need more cooling power.

What is CFM?
CFM (Cubic Feet per Minute) tells you how much air your fan should move per minute.

Do I need AC or just fans?
Tents may only need ventilation. Larger or hotter rooms may need an air conditioner.

Tool by GrōHaus — helping growers dial in their environment for success.