Varmatec RADIANT BLACK Single Infrared Wall-Mounted Heater with Corrosion-Resistant Black Waterproof Design and On/Off Switch ControlsHeated area approx. 15 20 square meters. Highest heat efficiency and maximum heated area thanks to the special reflectors patented by Star Progetti. HELIOS has no combustion and therefore does not produce direct CO2. Its heart is a bulb, it turns on and off, realizing the maximum heat immediately Varmatec produces a healthy heat like the sun: its heat is immediate and directed to the people to be heated without movement of air and without dispersion.