Furnace Gas Smell: Leave and Call From Outside
If you smell gas or a CO alarm sounds, leave the home and call the gas utility or 911 from outside. A suspected gas leak takes priority over heating repairs or reading an error code. Stay outside while the emergency response is handled; arrange furnace service only after the immediate hazard is addressed.
Talk to a contractor about the gas smell near your furnace
Call (877) 565-3062One call reaches a contractor registered for your ZIP; ask the fee and the arrival window.
HVAC Responder Editorial Team · Reviewed 2026-11-01 · Facts quoted from manufacturer documentation
What the source supports
According to Is This Normal? HVAC Smells and Sounds, Explained - Trane:
Call the gas company from outside.
Discuss the gas smell near your furnace with a contractor
Call (877) 565-3062One call reaches a contractor registered for your ZIP; ask the fee and the arrival window.
Safe observations before the service call
Do not stay indoors to locate a leak or operate furnace controls. Use an outside location to call for emergency help.
Details to give the contractor
After the property has been cleared for entry, give the heating contractor the utility findings and the furnace model. A referral call is not an emergency gas-leak response.
Gas smell and carbon monoxide alarms
According to CPSC Carbon Monoxide Fact Sheet:
Immediately move outside to fresh air.
Related symptoms and code references
- Furnace Not Turning On: Checks Before Calling
- Furnace Blowing Cold Air: Fan or Heating Failure?
- Furnace Short Cycling: Repeated Starts and Stops
- Carrier furnace codes
- Goodman furnace codes
- Lennox furnace codes
- Rheem furnace codes
- Trane furnace codes
- York furnace codes
- Furnace cold-air guide
- All HVAC problem pages
What happens when you call about the gas smell near your furnace
- Your call routes to an independent local contractor registered for your ZIP code.
- Ask the fee and the arrival window.
- The decision to hire stays with you.
One call reaches a contractor registered for your ZIP; ask the fee and the arrival window.
Sources and review date
- Is This Normal? HVAC Smells and Sounds, Explained - Trane · Read 2026-11-01
- CPSC Carbon Monoxide Fact Sheet · Read 2026-11-01