Thimble Size?

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Posts: 91
Joined: Sat. Jun. 28, 2008 9:48 pm
Stove/Furnace Make: Energy King
Stove/Furnace Model: 480EK

Post Fri. Aug. 01, 2008 10:40 pm

I just bought an Energy King 480EK furnace; the furnace flue size is 6". Now its time to build the chimney. I'm planning on building an outside masonry chimney with 8" square flue. Should I go with a 6" thimble to match the furnace flu size or should I go larger to an 8" thimble and use a 6" thimble to reduce the size? I was thinking of going 8" for future use, but then again how often am I going to replace the furnace.


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Posts: 434
Joined: Wed. Dec. 19, 2007 7:56 pm
Stoker Coal Boiler: EFM DF520
Coal Size/Type: rice
Location: Northampton Pa.

Post Sat. Aug. 02, 2008 8:29 am

go with 8" never know what you'll need in the future. The 6" pipe will fit right inside the 8" thimble ;)

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