... efficiency 2 years Warranty New NANO Technology Radiant Infrared Panel HeaterFeatures:(1) Comfortable: No wind, ... :1. It warms human body directly by far infrared ways, instead of wasting lots of energy ... ):evaporative air cooler,evaporative cooler,air cooler,infrared radiant heater,convector heater,kerosene heater,electric ... Number of Production Lines:3 Number of R&D Staff:11 - 20 People Number of QC ...