DESA Heating Products has a new line of propane-fired, forced-air heaters for indoor or outdoor jobs during cold winter months. The new Pro-Tough heaters are equipped with a high-capacity fan to circulate the heated air, and an adjustable-height footing allows angling the airflow upward to heat a specific area. To survive on the jobsite, these new heaters have a roll-cage design and feature molded plastic end caps to shrug off drops and kicks. DESA heaters are available in adjustable Btu outputs of 30 to 55,000, 50 to 85,000, 75 to 125,000 and 125,000 to 170,000, the latter of which is thermostatically controlled.