Nexus Corporation products

One method of heating greenhouses is the use of overhead unit heaters. These heaters operate off hot water, natural gas, propane or oil and function by blowing hot air from the heaters into the greenhouse environment. The heated air is then mixed throughout the greenhouse by use of horizontal air flow (HAF) fans or fan jets with poly convection tubes (which are not as common). These heaters are a highly efficient heating system when considering their inexpensive cost and ease of installation.

Natural ventilation allows for an inexpensive means of cooling. With the use of atrium roof vents the clear opening to the sky quickly allows the hot air to escape similar to a chimney.  In conjunction with side inlet vents and shade curtains temperatures can be less than outside ambient temperature. The inlet vents can be the guillotine vents with their clear opening or the old style rack and pinion. The quiet environment of natural ventilation is a great shopping experience in a retail garden center as compared to noisy fans. Less expensive cloth curtains will give you an economical natural ventilation option in the roof or the walls.   

Natural ventilation allows for an inexpensive means of cooling. With the use of atrium roof vents the clear opening to the sky quickly allows the hot air to escape similar to a chimney.  In conjunction with side inlet vents and shade curtains temperatures can be less than outside ambient temperature. The inlet vents can be the guillotine vents with their clear opening or the old style rack and pinion. The quiet environment of natural ventilation is a great shopping experience in a retail garden center as compared to noisy fans. Less expensive cloth curtains will give you an economical natural ventilation option in the roof or the walls.