This course covers the range of greenhouse structures you can build or buy, and examines some of the drawbacks and advantages of each. Also included is how to orient the beds, choice of watering systems, glazing materials and preferred greenhouse locations. The course will look at a number of methods of regulating heat through low-cost passive systems, heat storage systems and air circulation processes. Types of construction, ventilation, heating, and materials to use for covering will also be discussed in this information-rich workshop.