Hot Water Heating Coils have capacities of coils having two or more rows are based on counter-flow circuiting of water with respect to airflow. The Heating Coils come with mechanical expansion that provides a permanent metal-to-metal bond for efficient heat transfer application. The Heating Coils have been designed with dimensional accuracy that ensures efficient performance with corrugated fin collars are full-drawn to provide accurate control of fin spacing and maximum contact with tubes. Hot Water Heating Coils can be availed in different sizes and specifications to suit the specific requirements.