Secure Temp® ASHT+

The ASHT+ chimney model is a double-walled chimney made entirely of stainless steel. Its exclusive Secure Plus insulation minimizes heat loss through the walls and withstands high temperatures. The floating inner liner is attached only to the upper male fitting and expands and contracts freely according to temperature variations. The outer coating of the Secure Temp ASHT+ supports the structural load.

CERTIFICATION

The Secure Temp ASHT+ high-temperature chimney is certified by Intertek Testing (Warnock Hersey) to UL-103HT standards for all diameters of 5, 6, 7, 8 and 10 inches. Secure Temp ASHT+ has a temperature rating of 650°C (1200°F); max. continuous, 760°C (1400°F) brief forced fired; and 1150°C (2100°F) 3 x 30 minutes, tested.

A LEGACY OF INNOVATION

Since 1960, Security Chimneys has led the North American venting industry with a commitment to innovation and product improvement. This drive for excellence has shaped the development of the Secure Temp ASHT+, one of the most trusted venting solutions on the market. Designed with safety and corrosion resistance in mind, it offers reliable performance for residential and commercial applications.

ADVANCED DESIGN

Secure Temp ASHT+ chimneys are built from high-grade stainless steel, selected for its excellent heat and corrosion resistance. ASHT+ chimneys feature 1 inch of superior-quality, high-density Secura Plus insulation, keeping the temperature of the outer casing relatively low, reducing the need for complex safety measures.

EFFORTLESS INSTALLATION

Twist-Lock stainless steel coupler system with 1-inch overlap
Stainless steel inner lining
One inch of exclusive Secura Plus insulation
Fast venting of combustion products
Stainless steel outer casing
Inner liner attached only to the male coupler
Lightweight – 6-inch diameter, 5.2 lb. per linear foot

STANDARD FEATURES

Twist-lock assembly for fast, easy and secure installation—no screws or other attachments required
Double-lapped flue seam for durable radial expansion
Smooth finish for safe handling
Pressure-packed Secura Plus™ insulation to increase flue temperatures for faster start-up, stronger draft and better overall performance
Available in 5″ to 10″ inside diameters
2″ safety clearance from combustibles
Available in 8″, 12″, 18″, 24″, 36″ and 48″ lengths
Aluminum-zinc coated steel nstallation accessories to prevent rusting
Optional aluminum-zinc coated steel exterior for cost savings
Tested and listed to UL-103HT
Backed by a limited lifetime warranty

Typical Installation

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