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Secure Temp ASHT+

Secure Temp ASHT+: High-Temperature Chimney for Maximum Performance


ASHT+ is a double-wall stainless steel chimney with exclusive Secure Plus insulation designed to minimize heat loss and withstand high temperatures. Its floating inner liner adapts to temperature variations by expanding and contracting freely, ensuring optimal performance. The outer casing of Secure Temp ASHT+ offers exceptional structural strength.


The Secure Temp ASHT+ high-temperature chimney is certified by Intertek Testing (Warnock Hersey) according to UL-103HT standards for diameters of 5, 6, 7, 8, and 10 inches. Secure Temp ASHT+ has a continuous rating of 650°C (1,200°F), 760°C (1,400°F) in short-term forced drafts, and 1,150°C (2,100°F) during 3 x 30-minute tests.

A Tradition of Excellence

Since 1960, Security Chimneys has been a North American leader in ventilation, focusing on continuous product improvement and innovation. This pursuit of excellence has given rise to Secure Temp ASHT+, one of the most sought-after ventilation product lines in North America. This high-quality solution ensures maximum safety and proven corrosion protection for end-users.

Innovative Composition

The use of stainless steel, chosen for its resistance to high temperatures and corrosion, gives Secure Temp ASHT+ chimneys exceptional durability. All chimneys feature an exclusive one-inch high-density Secura Plus insulation, keeping the outer casing at a relatively low temperature, thus simplifying safety aspects.

Simplified Installation

The stainless steel Twist-Lock coupling system with a one-inch overlap, stainless steel inner liner, one-inch Secura Plus insulation, rapid combustion product venting, stainless steel outer casing, and inner liner attached only to the male coupling make installation a smooth process. Furthermore, its lightweight nature (6 inches in diameter, 5.2 lbs per linear foot) simplifies handling.

Available in Laval, Montréal, Saint-Sauveur, Gatineau, the Laurentians and in the Outaouais.

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