radiant heating systems comprised of electrical operating controls, gas burners, and heat reflectors, all for use for gas fired radiant heaters; radiant tube heating equipment, namely, gas fired radiant tube heaters for heating of buildings; Outdoor and indoor radiant heating systems; Heating equipment, namely, gas fired radiant tube heaters for climate control in buildings; infrared heating equipment, namely, gas fired infrared radiant tube heaters for climate control in buildings