Scrubbers have been shown to clean up most of the smell of pot before it can escape through the greenhouse roof vents. Growers who fail to meet the deadline risk losing their county business license, ...

The Char-Broil Kettleman offers precise temperature control: the vents provide good airflow, allowing you to adjust the heat and smoke to your liking, plus, there’s a responsive temperature gauge on ...

[2] Application of green energy in smart rural passive heating: A case study of indoor temperature self-regulating greenhouse of winter in Jinan, China ...