Plan for the disaster you're most likely to face

House fires are the disaster most likely to actually happen to your household, and the one people prepare for least. The preparedness plan isn't exotic — it's smoke alarms that work, a fire extinguisher you've practiced with, and two ways out of every room. It's cheap, it's unglamorous, and it's the single highest-return prep you can make. This page covers the alarms, the extinguishers, and the escape plan that make a house fire survivable instead of fatal.

Make the alarms work

Test every smoke alarm in the home once a month — press the button, hear the beep. Replace the batteries when they chirp, and replace the whole alarm every 10 years (the sensor degrades). If your alarms are more than 10 years old, replace them; the date is printed on the back. The USFA is explicit on this: alarms over 10 years old are unreliable, regardless of whether they beep.

Put a smoke alarm inside each bedroom, outside each sleeping area, and on every level, including the basement. A carbon-monoxide alarm goes near sleeping areas too, especially if you have any combustion appliance or an attached garage. CO is the other common killer, and it's invisible — you can't smell it or see it. A CO alarm is the only way to know it's there.

Interconnected alarms — when one goes off, they all do — are worth the upgrade, especially for a multi-story home. If a fire starts in the basement at 2 a.m., you want the bedroom alarm going, not just the basement one. Modern interconnected alarms are available battery-powered and wirelessly linked; you don't need an electrician for the wireless ones.

For anyone who is deaf or hard of hearing, or for a household with heavy sleepers, alarms with strobe lights or bed-shakers exist. Accessibility is part of the plan. A working alarm you can't hear isn't a working alarm. The ADA and fire-safety organizations publish guidance on accessible alarms; if someone in the household can't hear a standard alarm, get the right one.

Keep a spare set of batteries for the alarms in your emergency supplies, not just in the junk drawer. The chirp at 3 a.m. is how you find out the battery is low — and the night you need the alarm to work is not the night you're out of 9-volts. Check the batteries on your monthly schedule, the same day you test the alarm.

Keep an extinguisher and know how to use it

Keep at least one ABC fire extinguisher in the home — one near the kitchen (most fires start there) and one on each level. Know the PASS method: Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep side to side. If you've never used one, that sounds abstract; watch a demo and, if you can, take a hands-on class. The instinct under stress is to aim at the flames; you aim at the base.

Know when not to use it. A grease fire in a pan gets a lid, not water and not an extinguisher if you can help it. A fire bigger than a trash can, or one that's spreading, is a get-out-and-call-911 fire, not a fight-it-yourself fire. The plan is to handle the small ones and leave the big ones. The NFPA is clear: if you're not sure you can put it out, get out.

Check the extinguisher's pressure gauge on your maintenance schedule — if it's in the red zone, replace or recharge it. An extinguisher that's lost pressure is a prop, not a tool. The gauge should be in the green; if it's not, it's not ready. A $20 extinguisher you check is worth more than a $200 one you don't.

Know where the extinguisher is and make sure everyone old enough knows too. An extinguisher in a cabinet nobody opens is not a plan. Mount it on the wall or keep it where it's visible and reachable. The kitchen extinguisher goes between the stove and the exit, not behind the stove where you'd have to reach past a fire to get it.

Practice, at least mentally. Walk through: a pan fire on the stove — what do you do? A curtain fire — what do you do? The answer for a pan fire is slide a lid on and turn off the heat; the answer for a curtain fire is an extinguisher or get out. Running through the scenarios once a year makes the plan real. The NFPA has resources for home fire drills.

Plan two ways out

Walk through your home and find two ways out of every room — usually a door and a window. If a window is on a second story, is there a fire-escape ladder? If a door is blocked by fire, is the window usable? Draw a simple floor plan with the exits marked and put it where everyone can see it, especially kids. The USFA recommends this for every household.

Pick a meeting place outside — a neighbor's mailbox, a tree, a spot at the end of the block — and make sure everyone in the household knows it. The point of the meeting place is to know instantly whether everyone is out. Practice the escape twice a year, at least once at night. Under stress, the plan you've rehearsed is the plan you use.

For households with mobility needs, children, or seniors, the escape plan has to account for who helps whom. If someone can't use the stairs, the plan is different. Talk it through. A plan that assumes everyone can run isn't a plan for your household. The ADA and Ready.gov have guidance on accessible escape planning.

Time it. How long does it take to get everyone out? If it's more than two minutes, the plan needs work — fire spreads fast, and two minutes is the margin. Practice with the alarm going so the sound of it is part of the plan, not a surprise. A household that's practiced the escape doesn't freeze when the alarm goes off; one that hasn't does.

Keep the exits clear. A hallway full of storage or a window that's painted shut is an exit that doesn't work when you need it. Walk the exits once a month — are they clear? Can you open the window? Is the fire-escape ladder where you said it is? An exit you haven't checked is an exit you can't trust. The check is part of the plan.

This is planning guidance, not emergency advice. In an emergency, call 911. See a mistake? Report it.

Keep planning the basics