DuraVent 58DVA-DC Ceiling Support/Wall Thimble Cover Brand_FreshWater so there's no electricity

so there's no electricity

It monitors the pressure inside of the combustion chamber and shuts off  your pellet stove or insert if the pressure gets too high

1 x Travis Industries 250-00538 Combustion Blower Fan (Large)

Your sanitizer protects the water

DuraVent 58DVA-DC Ceiling Support/Wall Thimble Cover Brand_FreshWater so there's no electricityDuraVent 58DVA DC Ceiling Support Wall Thimble Cover Overview Use as a decorative cover for horizontal (through wall) installations or for flat ceiling installations. Fits over the Wall Thimble face plate. Comes with an insulation ring to reduce air infiltration where the pipe slips through the thimble. Painted Black. What's in the Box 1 x DuraVent 58DVA DC Ceiling Support Wall Thimble Cover Specifications Material: Galvalume Steel Diameters: 5" x 8"