6" Catalytic Combustor Gasket for Dutchwest Stove – 2 Pack

Keep Your Catalytic Wood Stove Running at Peak Efficiency

Maintain the performance and longevity of your catalytic wood stove with this Wood Stove Expanding Catalytic Combustor Gasket. Compatible with Dutchwest stoves using a 6-inch combustor, this 2-piece gasket kit creates a tight, vapor-proof seal around your catalyst — preventing bypass leaks that rob your stove of heat and efficiency.

Made in Mainland China.

Superior Vermiculite Construction: Each gasket is crafted from durable vermiculite material, known for its exceptional heat resistance and resilience under high-temperature conditions. Paired with PE foam double-sided tape for secure, hassle-free installation, this kit is everything you need to restore your stove's sealing integrity.

Key Features

• Premium Vermiculite Material: Heat-resistant and long-lasting, designed to withstand the demanding environment inside a catalytic wood stove.
• Optimal Dimensions: Each gasket measures approximately 36 x 2 x 0.15 inches, providing a precise fit around your 6-inch combustor. Included double-sided tape measures approximately 1.97 x 1.97 inches for a secure hold.
• Prevents Vapor Bypass: Creates a tight seal around the catalyst to stop combustion gases from escaping around the combustor — maximizing heat output and burn efficiency.
• Easy DIY Installation: Simply measure the burner's perimeter, cut the gasket to length, and secure it with the included double-sided tape. Use additional masking tape along the outer perimeter for extra hold during curing.
• Pack of 2: Includes two gaskets so you have a spare on hand for future maintenance.
• Compatible with Dutchwest Stoves: Specifically designed for Dutchwest stoves with a 6-inch catalytic combustor.
• No Electricity Required: Purely mechanical seal — no wiring or special tools needed.

Product Specifications

• Material: Vermiculite
• Gasket Size: Approx. 36 x 2 x 0.15 inches per piece
• Tape Size: Approx. 1.97 x 1.97 inches
• Quantity: 2 pieces
• Compatible With: Dutchwest stoves with 6-inch combustors
• Electric: No
• Country of Origin: Mainland China

What's in the Box?

• 2 x Wood Stove Catalytic Combustor Gasket (vermiculite)
• PE foam double-sided tape included

Why Replace Your Combustor Gasket?

Over time, the gasket surrounding your catalytic combustor can deteriorate, crack, or compress — allowing hot combustion gases to bypass the catalyst entirely. This reduces efficiency, increases emissions, and shortens the life of your combustor. Replacing the gasket regularly is a simple, low-cost way to keep your stove operating safely and at its best. Learn more about wood-burning stove efficiency and indoor air quality from the EPA's BurnWise Program.

For more on home heating safety and fireplace maintenance, visit CDC's Carbon Monoxide Safety Resource.

Looking for other home maintenance and repair accessories? Check out our 1/2 Inch Plastic Tap Replacement for Water Butt & Rain Barrel or browse our 1/2" Zinc Alloy Lockable Garden Faucet for more durable home repair solutions.

Note: Due to lighting and display variations, the color of the item may appear slightly different from the photos. Measurement tolerance: ±1–3 cm.

Frequently Asked Questions

Q: What stoves are compatible with this wood stove catalytic combustor gasket?

A: This expanding gasket is specifically designed to be compatible with Dutchwest stoves that use a 6-inch catalytic combustor. If you are unsure whether your stove uses a 6-inch combustor, measure the outer diameter of your existing combustor or consult your stove's owner manual before purchasing.

Q: What material is the gasket made from, and why does it matter?

A: The gasket is made from vermiculite, a naturally heat-resistant mineral material commonly used in high-temperature applications. Vermiculite withstands the extreme temperatures inside a wood stove, maintaining its sealing properties over time far better than standard foam or fiberglass gaskets.

Q: How do I install the catalytic combustor gasket?

A: Installation is straightforward. Measure the perimeter of your combustor, cut the vermiculite gasket to the appropriate length, and press it into place using the included PE foam double-sided tape. You can use additional masking tape along the outer edge to hold the gasket firmly while it sets. No special tools are required.

Q: Why does my wood stove need a catalytic combustor gasket?

A: The gasket creates an airtight seal between the combustor and the stove body. Without a proper seal, hot combustion gases can bypass the catalyst, reducing the stove's heating efficiency, increasing creosote buildup, and raising emissions. Replacing a worn gasket restores proper airflow and maximizes your stove's performance.

Q: How many gaskets are included in this kit?

A: This kit includes 2 pieces of the wood stove expanding catalytic combustor gasket, along with PE foam double-sided tape. Having two pieces means you have a backup ready for your next maintenance cycle.