DuraVent - DuraTech 7" Diameter Stainless Steel 18" Pipe Length 7DT-18SS All Fuel Chimney Pipe

Save $24.42
DuraVentSKU: 7DT-18SS

Sale price$219.73 Regular price$244.15
Cyber Monday Sale is ON! Free Shipping & Returns on All Orders. Get 15% off on any orders with the Code: MONDAY15 for over $500. Best Deal Ever! Need Help? Call 800-466-4712 or mail us at sales@belleflame.com

🔥FREE SHIPPING : All Over United States
🔥NO SALES TAX : All USA Orders
🔥SPEAK TO AN EXPERT : Call 800-466-4712 or mail at sales@belleflame.com


When it comes to chimney systems, safety, reliability, and performance are paramount. Meet the DuraVent DuraTech 7" Stainless Steel Chimney Pipe – the pinnacle of excellence in chimney technology. This double-wall, all-fuel chimney system is not just a product; it's your key to peace of mind.

Crafted to meet the stringent UL 103 HT and ULC S604 standards, the DuraTech Chimney Pipe features a Thermal Tech blanket insulation enveloped between dual walls. This unique design ensures that the outer wall of your chimney stays cool, while the high flue gas temperatures inside maintain optimal draft performance. Your safety is our top priority.

What sets DuraTech apart is its exceptional construction. The inner wall is 25% thicker than competing chimney pipes, providing an extra margin of safety. No locking bands or mechanical fasteners are needed, making installation a breeze. With its sleek 1" wall design, it easily fits through 16" on-center framing, and for tight spaces, we offer a Reduced Clearance Square Ceiling Support Box (available for the 6" diameter DuraTech).

DuraTech isn't just another chimney pipe; it's designed for normal, continuous operation at 1000°F flue gas temperatures. In fact, it's subjected to rigorous testing, including one hour at 1400°F and three ten-minute chimney fire tests at a scorching 2100°F. So, rest easy knowing that your DuraTech chimney pipe is built to endure the harshest conditions.


  • Versatile Compatibility: DuraTech is a double-wall, all-fuel chimney system suitable for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. It's also ideal for zero-clearance fireplaces that are factory-built.

  • Robust Construction: Featuring an inner wall of 0.020" 430 stainless steel and options for the outer wall (0.016" 430 stainless steel or 0.021" galvalume steel), DuraTech is built to last. Refractory insulation is encased between walls, and stainless steel end rings ensure a tight seal.

  • Easy Installation: DuraTech boasts twist-lock fittings, support boxes with factory-installed starter sections, and elbows with a 360° swivel base, making installation a breeze. Plus, you can adjust pipe lengths to fit your needs.

  • Safety First: With a 2" clearance to combustibles and the option to create a UL-listed shroud to hide the termination at the top of your chimney, DuraTech ensures your installation is not only efficient but also safe.

  • Variety and Convenience: DuraTech offers a wide range of diameters and lengths to suit your specific requirements, making it versatile for any project.

  • Industry-Leading Expertise: Crafted by an industry leader with over 50 years of manufacturing experience, DuraTech guarantees quality and durability.

  • Peace of Mind: Backed by a Limited Lifetime Warranty, DuraTech provides the best warranty in the industry, offering 15 years at 100% and 15 years at 50%. This assurance is your key to a quality installation that stands the test of time.

Product Details:

Model DuraTech 7"
Part no. 7DT-18SS
Inner Diameter, A 7 inch
Outer Diameter, B 9 inch
Pipe Length 18 inch
Inner Wall Material
0.020” 430 Stainless Steel
Outer Wall Material 0.016” 430 Stainless Steel


DuraTech is a double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built.

Materials and Construction: 5”, 6" 7", or 8” diameter pipe features an inner wall of .020” 430 stainless steel. Outer wall options of .016” 430 stainless steel or .021” galvalume steel. Refractory insulation is encased between walls. Stainless steel end rings seal the pipe.

DuraTech features lightweight insulation, twist-lock fittings, support boxes with factory-installed starter sections, elbows with 360° swivel base, select black finish pipe lengths, five-foot length pipe sections, and adjustable pipe lengths.

Clearances: 2” clearance to combustibles.

Shrouds: Shroud specs allow the installer to create a UL-listed shroud to hide the termination at the top of the chase for the safest installation.


  • A wide variety of diameters is available.
  • Most lengths are available.
  • Twist-lock fittings. No locking bands or mechanical fasteners are required.
  • Made by the industry leader with over 50 years of manufacturing.
  • The swivel base allows an installer to line up the elbow without unlocking and repositioning the elbow, saving time and money.
  • Ensures that the installer gets both the offset and return elbow along with an elbow support bracket to make a properly code-approved offset.
  • Limited Lifetime Warranty The best Warranty in the industry. 15 years 100%, 15 years, and up 50%. Gives the installer and homeowner the greatest peace of mind in a quality installation.


About the Manufacturer:

Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company’s research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro.

Get it between -

At Belleflame, we believe that shopping should be simple, stress-free, and most importantly, enjoyable. That's why we work hard to bring you the best products, prices, and customer service in the industry.

Here are just a few reasons why you should choose us:

  • Wide Selection of Products: We offer a vast selection of top-quality products from the leading brands in the industry. No matter what you're looking for, we have something for everyone.
  • No Sales Tax, no Hidden Fees: just the lowest prices on the market. When you shop with us, you can rest assured that the price you see is the price you'll pay. No matter where you live, you can enjoy tax-free shopping with us.
  • Fast and Free Shipping: We understand that you want your products as soon as possible. That's why we offer fast and free shipping on all orders.
  • Easy Returns: We want you to be completely satisfied with your purchase. If for any reason you're not happy, just let us know and we'll make it right.

Order Confirmation:

Upon placing your order, you will promptly receive an email confirmation. Subsequently, we will conduct a thorough inventory check to ensure all items are in stock and available for immediate shipment. If your order aligns with the advertised delivery timeframe, we will promptly process it for shipment to our warehouse. In cases where the expected delivery time extends beyond the advertised timeframe, we will reach out to you via email and/or phone for confirmation.

Order Shipment:

Within one business day of your item being shipped, you will receive an email confirmation containing a tracking number. If you do not receive tracking information within six business days of placing your order, please don't hesitate to get in touch with us for assistance.

Estimated Time of Arrival:

Our typical delivery timeframe ranges from 2 to 10 business days. Custom-made products generally require 3 to 5 weeks for delivery. If the expected delivery date for your order would fall outside of the advertised 2-10 business day time frame, our customer service team will contact you to ensure your agreement with the revised timeline.

Covered Areas:

Please note that all estimated delivery dates and shipping costs advertised on our website apply exclusively to the Contiguous United States. For inquiries regarding shipping to Hawaii or Alaska, kindly reach out to our customer service team. While we do not offer direct shipping to Canada, we are more than willing to ship your order to the freight carrier of your choice.


It is very important that you inspect the packaging of your items when they arrive and check if you received all boxes listed on the delivery receipt. If you notice any damage or shortage of packages, you must make note of it on the bill of lading, take pictures, and refuse delivery. Your note should say "refused due to damage". You must also take photos of all sides of the box and send them to us within 2 days. If there are no damages visible before opening the box, you must note "subject to further inspection may contain concealed damage". If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.

Cancellations & Refunds:

We offer free order cancellations before the shipping label or Bill of Lading is generated, or prior to the commencement of production for custom orders. Please note that custom-made items are not eligible for refunds once production has begun. To be eligible for a return, the item must be unused and in its original condition, with all packaging intact and in perfect condition. Orders delivered outside of the United States are not eligible for refunds. If your order arrives damaged, please refer to the "Damages" section. Our refund policy extends for 30 days. If 30 days have elapsed since your purchase, regrettably, we cannot process a refund. Prior to returning an item, please contact us to discuss shipping details. All refunds will be credited to the original credit card or PayPal account used for the purchase, within two days of receiving the returned items at our warehouse.

Please contact sales@belleflame.com for any questions regarding shipping time.

At Belleflame, we're committed to providing our customers with the best prices on the market. That's why we offer a 110% best price guarantee. If you find a better deal on the same product somewhere else, just let us know and we'll beat it by an additional 10%.

We believe that shopping should be easy, convenient, and most importantly, affordable. That's why we work hard to bring you the lowest prices on the products you love. But if you do happen to find a better deal elsewhere, we'll go the extra mile to make sure you get the best deal possible.

Here's how it works:

  • Find a lower price on the same product from another retailer.
  • Contact us with the details of the offer, including the website or store name, product name, and price.
  • We'll verify the price and beat it by an additional 10%.

It's that simple! Our 110% best price guarantee ensures that you'll always get the best deal possible when you shop with us. So, why wait? Start shopping now and experience the difference of shopping with Belleflame.

Customer Reviews

Be the first to write a review

100% Guaranteed Secure Checkout

American Express Apple Pay Diners Club Discover JCB Mastercard PayPal Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

You may also like

Recently viewed