Description
The original de-icing system includes a behind the antenna plenum (enclosure) which is heated with hot air from either liquid propane, natural gas or electric heating units. These systems are for antennas ranging in size from 3.7-meter to 32-meters in diameter. This is the original de-icing system originated over 36 years ago.
https://www.satellitedish.com/de-ice-116-120-220-230-vac-heaters-for-3-2-5-0m-antennas.pdf