The Secure TempTM ASHT+ insulated stainless steel high-temperature chimney is listed to standards established for temperatures of 2100F for venting solid-fuel, oil, gas and coal appliances.

Tested to UL 103HT in all diameters.

The Secure TempTM ASHT+ is also available in aluminum-zinc coated steel exterior casing.

* Coupler system, Twist-Lock assembly for fast and easy installation;
* no screws or other attachments required
* Double-lapped flue seam provides radial expansion; this prevents flue from separating or buckling
* Secura Plus-2 insulation, pressure-packed to retain high-flue temperatures; totally non-caustic and chloride free
* Available in 5" to 10" inside diameters
* 2" safety clearance from combustible materials with all diameters
* Available in 8", 12", 18", 24", 36" and 48" lengths
* 12" adjustable lengths also available
* Galvalume components that don't rust
* Lifetime limited warranty