Mr. Heater Category 1 Vertical 6 in Vent Kit for Big Maxx Heaters

The category 1 vertical 6 in. vent kit provides class 1 single wall B-vent ducting for Mr. Heater Big Maxx and Heatstar unit heaters, ranging from 250,000 BTU to 400,000 BTU. Designed for vertical installation only. Kit includes a 6 in. gas vent top, a storm collar, an adjustable roof flashing, a 6 in. x 26 in. B-vent pipe, two 6 in. x 24 in. 26-GA pipes, a firestop support plate assembly, and a 4 in. to 6 in. adapter (if needed). Other parts may be required for your specific installation needs. Please check and adhere to all state and local codes before installation.