Kingsman 5' Expanded Flex Kit With Springs, Screws and Mill Pac btu39000 You cannot use extra lave

You cannot use extra lave rock to gain more burner coverage

lava rock (included)

Propane tank kit is only to be used with a single 24" starter pan and framing kit

The rating plate is located in a unique area depending on your appliance type

When placed on top of existing mineral wool ember beds

Kingsman 5' Expanded Flex Kit With Springs, Screws and Mill Pac btu39000 You cannot use extra laveThis Flex Kit is designed to be used as a part of the Horizontal Vent Starter Kit for 5 8" Chimney Collection. The kit measures 5" by 8" in diameter and measures 5' long when stretched. It comes with all the necessary springs, screws and a mill pac all the parts needed for a successful installation. Features Flex kit For use with 5 8" chimneys Comes with Springs, Screws and Mill Pac Part of the Horizontal Vent Starter Kit for 5 8" chimneys For use