Excel Insulated Class A (Triple-Wall) All-Fuel Chimney Lengths
Best triple-wall chimney system for homeowners prioritizing maximum fire safety.
Ensure optimal safety and performance with Excel Insulated Class A (Triple-Wall) All-Fuel Chimney Lengths. Recognized as the safest chimney system in the U.S.A., these lengths meet the stringent Canadian 30-minute chimney fire test. Designed for wood stoves and fireplaces, they offer robust triple-wall construction and all-fuel compatibility. Excel Chimney provides peace of mind with a comprehensive warranty covering damage from normal operation and chimney fires, ensuring long-term reliability and security for your home.
$179.00
Owner Satisfaction
4.7
/ 5
Category Rank
5
/ 548
#5 in Fireplace & Wood Stove Accessories
Price vs Category Average
-68%
Below average
Wall Type
Triple-Wall
/ Triple-Wall
Who it's for
- Users needing a single system for multiple heating appliances
- Homeowners installing chimneys in tight, space-constrained areas
- Owners seeking long-term durability against creosote and moisture
Who should skip it
- Budget-conscious buyers looking for affordable venting solutions
- DIY installers uncomfortable handling heavy, bulky components
- Owners preferring low-maintenance or simple cleaning routines
Performance breakdown
Safety Certification
Exceeds industry standards with rigorous Canadian chimney fire test compliance.
Thermal Insulation
Triple-wall construction provides superior heat retention and structural protection.
Fuel Versatility
Engineered to handle wood, oil, gas, and coal without compromise.
Build Durability
High-grade stainless steel ensures long-term resistance to harsh environmental conditions.
Installation Flexibility
Extensive range of diameters and lengths accommodates diverse home configurations.
Warranty Coverage
Industry-leading protection includes coverage for damage from actual chimney fires.
Key Specs
Wall Type
Triple-Wall
Insulation
Yes
Fuel Compatibility
All-Fuel (Wood, Oil, Gas, Coal)
Clearance to Combustibles
2 inches
Material
Stainless Steel
Certifications
Meets stringent Canadian 30 minute chimney fire test
Diameter Options
6", 7", 8", 10", 12", 14"
Length Options
6", 12", 18", 24", 36", 48", plus adjustable 18" and 24" options
Features
- Superior triple-wall insulated construction
- Meets stringent Canadian chimney fire test
- Compatible with all fuel types
- Designed for wood stoves and fireplaces
- Durable stainless steel material
- Comprehensive 10-year warranty
- Available in multiple diameters and lengths
- Safest chimney system on the market
What customers say
Customers overwhelmingly praise the Excel Insulated Class A chimney lengths, positioning them as a top-tier solution for demanding heating applications, such as wood stoves and high-efficiency furnaces. The sentiment is strongly positive, driven primarily by the perceived safety and robust construction inherent in the triple-wall design. Reviewers frequently highlight the precision engineering, noting that the components fit together seamlessly and securely, often requiring minimal effort or specialized tools for installation—a significant advantage given the complexity of routing chimney systems through various roof and ceiling penetrations. The insulation performance receives high marks, with users confirming that the exterior surface remains remarkably cool to the touch, providing essential peace of mind and easily meeting stringent safety codes. Durability is another key theme; many long-term users report that the heavy-gauge stainless steel construction holds up exceptionally well against extreme heat cycles and harsh weather conditions without showing signs of degradation or rust. While the initial investment is consistently acknowledged as substantial, the consensus is that the product represents excellent long-term value due to its longevity, superior performance, and the enhanced safety it provides compared to cheaper, less reliable alternatives. Minor critiques occasionally surface regarding the weight of the longer sections, which can complicate roof installation for solo DIYers, and some wish for clearer instructions for highly customized setups, but these are generally minor friction points that are quickly overshadowed by the product's overall reliability and quality assurance once installed. This product is viewed as a necessary, high-quality investment for serious heating needs.
Know before you buy
It means the chimney is engineered to safely vent exhaust from a variety of heating appliances, including wood stoves, fireplaces, and systems burning oil, gas, or coal.
You must maintain a minimum clearance of 2 inches between the exterior of the chimney pipe and any combustible materials, such as wood framing or insulation.
The triple-wall design incorporates high-performance insulation between layers, which helps maintain high internal flue temperatures for better draft while keeping the outer casing cool. This construction is specifically tested to withstand the extreme temperatures of a chimney fire.
Yes, the warranty is unique because it explicitly covers damage resulting from both normal operation and chimney fires, providing long-term protection for your investment.
You should match the chimney diameter to the flue collar size of your specific appliance. Always consult your stove or fireplace manufacturer's manual to ensure the chimney diameter meets their venting requirements for optimal performance.
Yes, Excel offers adjustable lengths in 18-inch and 24-inch sizes, which allow for precise fitting between fixed sections of the chimney run.
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