Growroom

Due to the heat generated by high power lamps, grow rooms will often become excessively hot relative to the temperature range ideal for plant growth, often necessitating the use of a supplemental ventilation fan.

Vermiculite, perlite, coconut husk and rockwool are common components in soilless mixes for indoor cultivation.

For indoor use, higher lighting efficiency produces more lumens per unit of area with less power and less waste heat.

Advanced grow room even include air conditioning to keep running temperatures down, as well as CO2 to boost the plant's growth rate.

Law enforcement authorities attempting to locate grow rooms are known to search the records of electricity providers for signs of excessive electrical consumption and employ air or ground vehicles using thermal imaging cameras/FLIR/(infrared cameras) to detect unusual instances of excess heat radiating or otherwise escaping from buildings.

Growers respond to the use of thermal imaging cameras by isolating and decoupling rooms physically from the outer walls of buildings, and directing ventilation exhaust into a chimney.