Frequently Asked Questions
Expert answers for your chimney and venting needs.
How do I measure for a chimney liner?
To ensure a proper fit, you must measure the height of your chimney from the top to the appliance connection, as well as the internal dimensions of the flue tile. We recommend adding an extra 1-2 feet to the length for trimming during installation.
What is the difference between 304 and 316L stainless steel liners?
304 grade stainless steel is designed for wood-burning applications only. 316L is a higher-grade alloy that is required for venting coal, oil, or pellet-burning appliances due to its increased resistance to corrosion.
Do you offer free shipping on large orders?
Yes, we offer free ground shipping on most orders over a certain threshold within the contiguous United States. Oversized items, such as rigid chimney pipes, may require specialized freight shipping.
What is your return policy for custom-cut liners?
Because flexible chimney liners are cut to your specific length requirements, they are considered custom products and are generally non-returnable. We encourage you to double-check your measurements before placing an order.
Are your products UL listed?
Absolutely. All of our chimney liners and components are UL listed and tested to meet rigorous safety standards, ensuring they comply with local building codes when installed correctly.
How long does shipping take?
Most in-stock items ship within 24 to 48 hours. Depending on your location, standard transit times range from 2 to 5 business days. You will receive a tracking number via email as soon as your order leaves our warehouse.