The Polar Vortex Is Back - 25% OFF on all items!

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Don’t wait until the cold hits hard. Protect your heat system and stay warm with our biggest savings of the season.

Stay ready. Stay warm.

Sale ends December 11 — shop now before it’s gone.

PREMIUM GRADE DOOR SEAL CAULK - HIGH TEMP BLACK

Door Seal Caulk - High Temp Black is used to secure replacement fire rope door seals for ALL outdoor boiler model furnaces. This is a 10 oz. cartridge that is used with a standard caulk gun. 

Please also purchase one 10ft. length of Fire Rope to complete this periodic maintenance item.

See this link for instructions on how to change the door seal:

How To Change The Door Rope Gasket On Your Outdoor Boiler