Heat Versa Hood Specifications Side View no Chimney Side View with Chimney in 16 25 in 6in 10 in 10in 23 1/2” Front View no Chimney Heat Versa Hood Required Roof Cap 12 in Opening = 35 in2 3.5 12 in 10 in 16”x18” flashing 9 7/8” x 2” collar Figure 1 Figure 2 IMPORTANT: A correctly sized roof cap is essential for proper air flow. Heat RC-10 is required. Never use a roof cap like the one shown in Figure 1. Only use the Heat RC-10 with the style shown in Figure 2.