Carbon Monoxide and Your Fuel: A Safety Reminder - A Plain-English Guide
Last verified: September 2026
Carbon monoxide is the one danger every fuel shares. This guide covers why, the outdoor-only rule, and the alarms and symptoms worth knowing, in plain English. Rather have a hand? My number is (330) 200-8042.
Carbon Monoxide and Your Fuel, at a Glance
Burning any fuel — gasoline, propane, diesel, or natural gas — produces carbon monoxide, an invisible, odorless, deadly gas. This guide covers why every fuel makes it, the outdoor-only rule, alarm placement, and the symptoms to watch for in plain English. There's a printable 29-page version up top.
Common Questions
1 Does propane make carbon monoxide too?
Yes. Propane generally makes less carbon monoxide than gasoline for the same work, but it still makes it. The outdoor-only rule applies no matter which fuel you use.
2 How far away should a generator run?
Outdoors only, well away from the house, with the exhaust pointed away from every window, door, and vent — the safety agencies say at least 20 feet.
3 Where should carbon monoxide alarms go?
On every level of the home and outside sleeping areas, using battery or battery-backup alarms so they work even if the power is out.
4 What are the symptoms of carbon monoxide poisoning?
Headache, dizziness, weakness, nausea, confusion, and unusual sleepiness. Get everyone to fresh air first, then call 911.
5 Does a generator's automatic shutoff mean I can run it closer?
No. An automatic carbon monoxide shutoff, sometimes built to standards like PGMA G300 or UL 2201, is a helpful backstop — not a reason to place the generator any closer to the house.
6 Is carbon monoxide the same danger as a gas leak?
No — a gas leak is unburned fuel you can often smell; carbon monoxide is an invisible, odorless byproduct of burning fuel. Both deserve real respect. See our gas-leak guide for that danger specifically.
Would You Rather I Just Help?
Making sure your home has the right carbon monoxide alarms and that your generator runs in a genuinely safe spot is some of the most important planning I help with — nothing to sell you. $99 flat for a visit, 30-day come-back-free.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).