DuraVent's DuraPlus HTC chimney system features the Thermal Tech II insulation blanket. It is made of a unique silica-ceramic that will not shrink or cause gaps like many competitor products.
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DuraPlus HTC meets all the requirements to be UL Listed in Canada. It is listed under the OMNI ULC S629. You can trust this chimney system to help protect your home even in the event of a chimney fire.