The ATEX-certified blower heater can withstand corrosive and wet environments. CXH-XD can heat areas classified as hazardous locations to provide primary or supplementary heating for comfort or freeze protection. It is suited for extreme environments in industrial settings such as onshore and offshore drilling platforms, pump houses, power-generating stations, and water and wastewater plants. The unit includes a corrosion-resistant coated heat exchanger, optional 316 stainless steel and epoxy-coated frames, and a corrosion-resistant and washdown-rated fan motor.