Infratech Comfort is the manufacture of American Made Infrared and Radiant Hanging Patio Heaters. Infratech offers three different series of Patio Heaters allowing you the ability to choose which heater best fits your personal need and space. Infratech three series are their W-Series, WD-Series and SL-Series. Each Patio Heater series offered from Infratech varies in it's own way, weather its the Voltage used, length of area that it can hear or number of elements the patio heater has. Let Infratech Patio Heaters heat up your back patio.