HeatFlo Flex Extension Kit 60" Length HTFLO-EK-4.5 F4578 For Direct Vent Fireplaces

The HeatFlo Extension Kit is required when the distance from the bottom of the register to the top of the appliance exceeds 70".
See Fireplace Framing Specifications in the Installation and Operation Manual.
READ ALL THE STEPS BEFORE STARTING THE INSTALLATION

Kit Includes
4 ea. 4-1/2” Diameter Flex Vent, 60” Compressed (approx. 3:1 expansion ratio)
4 ea. Flex Connector
32 ea. Self-Tapping Screws
1 ea. Instruction Sheet


Kit To Be Used with Below Options:
F4454 HTFLO-DV45 Kit, HeatFlo 45 DV Units
F4453 HTFLO-DV55 KIT, HeatFlo 55 DV Units