Ongas Mega offers a wide range of heating options from 830 kW to 3250 kW, while aluminium casting exchanger, fiber coated stainless steel burner and high-tech automation panel provides comfortable operation. You will continue to use your boilers with the highest quality aluminium cast heat exchanger produced in the Önmetal Casting Production facilities that use their own original designs in all boilers, as well as being capable of producing the highest heating capacity condensing boiler exchanger in Europe.