DESCRIPTION

Highlights:

• No. 8T-18
• Size: 8" x 18"
• Type A chimney
• Low-K insulation density: 23 lb./cu. ft. average
• Model SS-II Type HT sizes 6" & 8" use the letter "T" in the part number
• Type HT chimney pipe special augured in mineral wool insulation filling the space between stainless steel walls is only 1 inch thick, yet provides 17 times the insulating valve of brick
• This optimum density of insulation stops expansion noises and resists and contains surges of heat
• This allows the system to be enclosed with only 2 inch clearance to combustibles
• The "solid pack" density comprises about 85 percent air
• The mixture of extremely fine fibers trap this air in the pores of the insulation and also blocks radiation heat transfer
• Tested to 2100 degrees F
• UL listed