Safety desk · source checked September 2026

Safety & Official Resources

Use primary safety guidance for urgent decisions and appliance instructions for your specific system. The directory’s guides are educational summaries, not an authority having jurisdiction, inspection or emergency service.

When a situation may be urgent

If a carbon-monoxide alarm sounds or someone has possible exposure symptoms, move outside to fresh air and contact emergency services. If you suspect a chimney fire, leave the building and call emergency services. Do not resume use until the appropriate authorities or a qualified professional have cleared the system.