Clay flue liners pulls air up and expels it out of the top of the flue using draft.
Clay chimney thimble sizes.
Size and weights approximate.
Clay flue liners provides proper air flow for maximum performance.
Size diameter x length item wt pc thimble saddle fits.
For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4.
Clay flue liners enhances the chimney s performance of protection and safety to your home.
Terra cotta flue intent is to contain the combustion products and direct them to the outside atmosphere.
In normal inside diameter in effective flue area sq.
Fire clay for maximum heat resistance.
Wall thimbles clay thimbles makes 90 connection for appliance furnaces water heaters wood stoves etc site assembled with refractory mortar joins with clay chimney liners with pre cut holes various sizes and lengths available thimble joins with square flue liners with pre cut holes saddle joins with round flue liners with pre cut holes.
In effective flue area sq.
6 x 12 clay thimble 1314 13 8x8 8 x8 6 x 24 clay thimble 1320 26 8x8 8 x8 7 x 12 clay thimble 1326 17 8x12 12x12 7 x 24 clay thimble 1332 34 8x12 12x12 8 x 12 clay thimble 1338 21 8x12 8 x13 13x13 8 x 24 clay thimble 1344 42 8x12 8 x13 13x13 6 short saddle length 9 1350 10 6 round 6 long saddle length 18 1352 20 6 round 7 short saddle length 9 1354.
In flue lining with opening size of flue in size of opening in 4 1 2 x 8 1 2.
They help protect the chimney walls from heat and minimize condensation.
Flue lining with opening.
Just muliplying these dimensions together 6 75 x 6 75 45 56 sq in.
But chimney experts and draft measurements show that in a rectangular flue not all of the cross sectional area is equally effective in developing draft.
Only red or orange in color.