Problem: Gutter-connected, Quonset-style greenhouse with 5 bays each measuring 20 feet wide, 5 feet tall, and 100 feet long. The walls are 12 feet high, and the covering width is 24 feet. The greenhouse frame is metal, and the roof is covered with double-layer polyethylene, but the walls and ends are covered in FRP. A temperature difference of 65°F and a wind velocity of 25 mph are expected. Specify the heater model from the Modine Catalog which would be most appropriate for this greenhouse space.