How to Prevent Chimney Fires in San Antonio, TX
A chimney fire can reach temperatures over 2,000°F. Many chimney fires are “quiet” — they burn inside the flue without visible flames, and homeowners don’t know they happened until an inspection reveals the damage.
The #1 Cause: Creosote Buildup
| Stage | Appearance | Risk Level |
|---|---|---|
| Stage 1 | Flaky, dusty | Low |
| Stage 2 | Crunchy, tar-like | Medium |
| Stage 3 | Oily, glazed | HIGH |
Stage 3 creosote ignites at around 451°F — easily reached during normal fireplace use.
Prevention: Annual chimney cleaning removes creosote before it reaches dangerous levels.
Burn Only Seasoned Hardwood
Green or unseasoned wood produces far more creosote. In San Antonio, look for:
- Oak — widely available, burns hot and clean
- Pecan — a Texas native, excellent heat output
- Mesquite — burns very hot, great for short fires
Never Burn These in Your Fireplace
- Cardboard boxes, treated or painted wood, trash or paper
- Wet or green wood
- Artificial logs more than once per season
Install and Maintain a Chimney Cap
A chimney cap prevents rain, animals, and debris from entering the flue. A stainless steel cap with a spark arrestor mesh also prevents embers from landing on your roof.
Get an Annual Level 1 Inspection
A Level 1 inspection checks the flue liner, creosote level, damper, firebox, and chimney cap.
Sweeppy’s Level 1 inspection and cleaning starts at $144 in San Antonio. Call (210) 418-9810 — same-day appointments available.