There are four main chimney liner types: clay tile (common in older homes, durable but prone to cracking), stainless steel (the most versatile relining option for wood, gas and oil), aluminum (for certain gas appliances only) and cast-in-place (a poured cement-like liner that also strengthens the chimney). The right one depends on your appliance and chimney condition.
Comparison
| Liner | Best for | Notes |
|---|---|---|
| Clay tile | Original masonry fireplaces | Long-lasting until cracked; hard to repair |
| Stainless steel | Wood, gas and oil; stoves and inserts | Most common for relining; often lifetime warranty |
| Aluminum | Some gas appliances | Not for wood or oil |
| Cast-in-place | Old or irregular chimneys | Adds insulation and strength |
Why liner size matters
A liner that is too large keeps smoke cool, creating more creosote and condensation. One that is too small restricts draft and can push smoke and carbon monoxide back into the home. The liner must be sized to the appliance manufacturer's specifications.
More questions
Do I need a chimney liner?
Building codes require chimneys to be lined. If yours is unlined, cracked or connected to a new appliance, it should be relined.
Need a professional?
Chimney Champs provides chimney liners & relining across PA, NJ, DE, NY and CT. Call (856) 300-9215 for a free estimate.
Keep reading
- How Often Should You Clean Your Chimney?
- 9 Signs Your Chimney Needs Repair
- Chimney Inspection Levels 1, 2 and 3 Explained
- What Is Creosote? The 3 Stages and Why It Causes Chimney Fires
- Why Is My Chimney Leaking? 6 Causes and How to Fix Them
- What to Do in a Chimney Fire (and How to Prevent One)
- How to Get Your Fireplace Ready for Winter: A 10-Step Checklist