<div style="margin: 0in 0in 10pt">I think I found a ducting material that will work for this project. It&rsquo;s available from <font color="#800080">http://www.ducting.com/</font>800-370-9152 I spoke with Josh and you can reach him via e-mail at [email protected]</div><div style="margin: 0in 0in 10pt">Very informative guy and most helpful. He found a 1 inch diameter high temp 1 inch ducting material that is insulated. Here are the specs and pictures.</div><div style="margin: 0in 0in 10pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Construction: <u>Inner Layer;</u></span><span style="color: black; font-size: 10pt"> Double-ply silicone coated woven fiberglass fabric hose construction with a spring steel wire helix. </span></div><div style="line-height: normal; margin: 0in 0in 0pt"><u><span style="color: black; font-size: 10pt">Outer Layer; </span></u><span style="color: black; font-size: 10pt">Single-ply neoprene impregnated polyester fabric hose construction reinforced with a spring steel wire helix. </span></div><div style="line-height: normal; margin: 0in 0in 0pt"><u><span style="color: black; font-size: 10pt">Insulation</span></u><span style="color: black; font-size: 10pt"> 1-inch fiberglass insulation (R-value=4)</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Product Features:</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Insulated Industrial dryer hose</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Combines flexibility with minimal heat loss</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Suited for air handling applications at low positive and low negative pressures</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Good flexibility</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Excellent external abrasion and chemical resistance</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Applications: </span><span style="color: black; font-size: 10pt">Recommended for industrial air movement &amp; fume control applications.</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Temperature Range:</span><span style="color: black; font-size: 10pt"> <u>Inner layer</u>; - 65 F to + 550 F, intermittent to 600 F</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt"> <u>Outer layer</u> - 40 F to + 250 F</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Sizes I.D. (inches):</span><span style="color: black; font-size: 10pt"> 1, 1.5, 2, 3, 4, 6, and 8 Inch I.D.</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">ID Tolerances: </span><span style="color: black; font-size: 10pt">-0.00 to + 0.125 Inch</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Standard Length:</span><span style="color: black; font-size: 10pt"> 12 Feet, custom to 25 Feet</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Standard Colors: </span><u><span style="color: black; font-size: 10pt">Inner layer;</span></u><span style="color: black; font-size: 10pt"> Iron Oxide Red, <u>Outer Layer;</u> Black </span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">End Finish:</span><span style="color: black; font-size: 10pt"> Plain Cut </span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Weight:1.92000 oz per ft</span></div>