4in Stainless Steel Horizontal Vent Kits are designed to fit the MHU45, HSU45, MHU50, HSU50, MHU75, HSU75, MHU80 and HSU80 model unit heaters. (3in X 4in adapter for use with 45K and 50K models only.) Designed for horizontal installation only. Other select parts may be required for your installation needs. Stainless steel is required by code in most Canadian Provinces. Please check and adhere to all local codes before installation. Sealed, stainless steel ventilation is required for HORIZONTAL installation in both the United States and Canada. Mr. Heater's stainless steel horizontal vent kit allows Category 3 Unit/Utility heaters to comply to both the Canadian Standard (S636) and the US Standard (UL1738). Stainless steel venting is NOT required for vertical installation.

Includes:

For use with MHU75, HSU75, MHU80, HSU80 Unit Heaters

Stainless Steel meets new 2012 standards