Is Your Furnace Flue Rusty, Flaking, Or Corroded? It’s Time To Reline!

Your hearth appliance’s chimney may be well taken care of, but what about your furnace or boiler flue? When neglected and damaged, this flue can be just as dangerous as the one venting your fireplace, stove, or insert. That’s why it’s important to have your furnace/boiler flue inspected annually and relined as needed.

National Fire Protection Association (NFPA) 211 states that all chimneys and venting systems should be inspected every year, without fail. The problem is, many homeowners assume that this important service is being performed by the company servicing their furnaces and boilers. It’s time to bust some myths!

Does Your Furnace/Boiler Service Company Inspect The Flue?

The answer is: not likely. The company that services your furnace or boiler is responsible for just that: your furnace or boiler. The attached venting system is not considered a part of their service, which is why you’ll need to rely on a CSIA-certified technician like the ones here at Trinity Chimney Service.

Our team is trained in all venting systems and has the equipment and knowledge needed to accurately assess the interior of your boiler or furnace flue. We’ll use video scanning equipment to look inside, checking for breaks, cracks, flaking areas, creosote buildup, acidic corrosion, and any other types of damage. If damage is present, our team knows just what to do.

Why Furnace & Boiler Flue Pipes Need To Be Replaced

Damage or improper installation can decrease the safety and performance of the boiler or furnace, just as damage or improper installation of your chimney flue affects the fireplace, insert, or stove it’s venting. For your safety and for the efficiency of the appliance itself, you need to be confident that the smoke pipe is free of damage, buildup, blockages, or anything that could cause a fire, carbon monoxide poisoning, masonry damage, or any other dangerous and undesirable issues. If it’s not, it needs to be replaced.

Why Is Stainless Steel The Best Liner For Furnaces & Boilers?

Many homeowners are opting for high-efficiency boilers and furnaces, which makes sense. But the problem is that modern high-efficiency boilers and furnaces can actually be even harder on liners than appliances of old. Why? Because the transition from vapor to moisture happens inside of the flue now, rather than inside of the appliance. With other liners, this could cause corrosion, rusting, and overall deterioration in just a short time. Stainless steel liners are made to stand up to the years of abuse and are rust- and corrosion-resistant, so you get a longer service life from your investment. These liners are worth every penny because they provide peace of mind and decades of worry-free service.

Schedule An Inspection Today — We’ll Let You Know Exactly What Your Furnace/Boiler Flue Needs

Have you been under the impression that the service company caring for your furnace or boiler has been inspecting the flue this whole time? Has it been a while since you’ve had your furnace or boiler flue inspected by a CSIA-certified professional? Give Trinity Chimney Service a call at 443-602-4306 or fill out our online appointment request form to schedule an appointment today. We’ll send a dependable, thorough, and knowledgeable professional out to your home so you know exactly what’s going on in your furnace/boiler flue and whether or not it’s time to invest in a replacement. Call today — we’re here to help!


Using stainless steel liners will give you the longest-lasting results possible for chimney relining. You can count on Trinity Chimney Service for quality work every time.