4in Vertical Vent Kits designed to fit the MHU50, HSU50, MHU80, HSU80 and MHU125 model unit heaters. Also compatible with older 45,000 and 75,000 BTU models. Designed for vertical installation only. Other select parts may be required for your installation needs. Please check and adhere to all state and local codes before installation. Mr. Heater’s vertical vent kit allows Category 1 Unit/Utility heaters to comply to both the Canadian Standard (S605) and the US Standard (UL441). Replacement for F102840.
- Includes - 1 - 3in to 4in adapter, 1 - 4in x 36in B-vent pipe, 2 - 4in x24in vent pipe, 1 - 4in 90 degree elbow, roof flashing, storm collar, vent cap, gas vent firestop spacer
- For use with MHU75, HSU75, MHU80, HSU80 Unit Heaters