The 700 and 800-Series are single pole multi-position, general purpose rotary switches. These switches feature a nylon actuator in a metal clad construction along with a self-cleaning silver plated contact design. The 700 and 800-series are typically used in applications requiring multi-position speed controls, such as electric fans.
MOF captures hot CO2 from industrial exhaust streams
How much so-called "hot" exhaust could be usefully captured for other heating purposes (domestic/commercial) or for growing crops?