Home CO Safety Readiness Check

Carbon monoxide sends more than 100,000 people to emergency rooms in the United States each year, and roughly 400 of those cases are fatal. The risk increases sharply during winter months, when homes are sealed up and fuel-burning appliances run continuously — but CO hazards exist year-round in any home with a furnace, water heater, gas stove, fireplace, or attached garage.

The good news: most CO incidents are preventable with a few straightforward measures. The challenge is that CO safety involves multiple systems working together — detectors, appliance maintenance, ventilation, daily habits, and emergency planning. A gap in any one area can undermine the rest.

This 2-minute check evaluates your home across five CO safety dimensions: detector coverage, appliance maintenance, ventilation, safe practices, and emergency preparedness. You will receive a score for each area and an overall readiness rating — along with a prioritized list of what to address first.

Note: This check provides general safety guidance based on widely accepted best practices from the CPSC, NFPA, CDC, and EPA. It is not a substitute for a professional home inspection or a licensed HVAC technician's assessment.

In 2 Minutes

• CO detectors on every level and near every sleeping area are the single most important protection — but roughly 1 in 3 US homes still lacks adequate coverage.
• Annual professional inspection of your furnace, water heater, and other fuel-burning appliances catches problems before they produce dangerous CO levels.
• Blocked vents and chimneys — from debris, snow, ice, or animal nests — are a leading cause of CO buildup in otherwise well-maintained homes.
• Never use generators, grills, or camp stoves indoors — not even in an attached garage with the door open. One portable generator produces as much CO as hundreds of idling cars.
• An emergency plan your household actually knows — including what the CO alarm sounds like and where to meet outside — turns detection into action.
• This check covers all five areas and tells you where your home is strong and where it has gaps.

What This Check Covers

• Number, placement, age, and testing frequency of your CO detectors.
• Professional maintenance status of furnaces, water heaters, and other fuel-burning appliances.
• Condition and clearance of external vents, chimneys, and flue pipes.
• Daily practices that create CO risk — garage use, indoor heating alternatives, generator placement.
• Whether your household has a CO emergency plan with known alarm sounds and meeting points.
• Whether anyone in your home is at elevated risk from CO exposure (infants, elderly, pregnant individuals, people with heart or lung conditions).
• Overall readiness score across all five dimensions with prioritized improvement steps.

Start the Check

How to Interpret Your Result

Your answers are scored across five dimensions: detector coverage, appliance maintenance, ventilation, safe practices, and emergency preparedness. Each dimension contributes to an overall readiness rating.

• Well Protected (80–100%): Your home scores high across all five CO safety dimensions. Detectors, maintenance, ventilation, daily habits, and emergency planning all appear to be in good shape.
• Mostly Ready (60–79%): Your home has a solid CO safety foundation, but one or two areas need attention. Addressing these gaps typically requires a small time investment, not a major expense.
• Gaps to Address (40–59%): Multiple CO safety gaps exist across several areas. The combination creates meaningful risk — especially during winter months or power outages.
• Immediate Action Needed (0–39%): Significant CO safety gaps exist across most or all of the five dimensions. Critical protections are largely absent or insufficient.

Sources & References

1. U.S. Consumer Product Safety Commission (CPSC) — Carbon Monoxide Information Center . Safety tips, UL 2034 standards, detector guidance, ~170 non-automotive CO deaths/year.
2. Centers for Disease Control and Prevention (CDC) — Carbon Monoxide Poisoning Prevention . ~400 deaths/year, 100,000+ ER visits, prevention guidance.
3. U.S. Environmental Protection Agency (EPA) — Protect Your Family from Carbon Monoxide Poisoning . Comprehensive DO/DON'T checklist, detector placement, ventilation guidance.
4. National Fire Protection Association (NFPA) — Carbon Monoxide Safety . NFPA 72 detection standards, alarm placement, educational resources.
5. U.S. Fire Administration (FEMA/USFA) — Carbon Monoxide . 150+ non-fire CO deaths/year, alarm placement guidance.
6. American Red Cross — Carbon Monoxide Safety . Preparedness checklist, evacuation protocol, alarm sound distinction.
7. National Safety Council (NSC) — Carbon Monoxide . CDC-sourced statistics, detector battery and replacement recommendations.
8. CPSC — Winter Storm Safety Tips (2026) . Seasonal CO risk guidance for heating and power outage scenarios.
9. Kidde — CO Safety Hub . Manufacturer placement guidance, 5–20 ft from sources, PPM exposure chart.
10. UL Solutions — Carbon Monoxide Alarm Considerations for Code Authorities . UL 2034 thresholds and end-of-life requirements.