All heaters require proper ventilation for proper operation, and the 220 Therma Grow Greenhouse Heaters from from LB White are no exception. This Outdoor Installation Kit is preassembled, and includes application-specific mounting and ventilation equipment.

Therma Grow 220 heaters require 550 CFM per indoor mount and 220 square inches of exit area per outdoor mount.

Includes

• Exhaust Shutter; requires a 10 1/2" x 10 1/2" rough opening
• Outdoor Mounting Kit

Indoor Mounting Kit available, QC Part #21361, sold separately.

Works With the Following Therma Grow Heaters

• QC Part #21354 - Model 220 Propane
• QC Part #21355 - Model 220 Natural Gas
• QC Part #21356 - Model 220+ Propane
• QC Part #21357 - Model 220 Natural Gas