SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/solar-generator-20-feet

When a generator runs for backup power, how far from windows, doors and vents should it be?

Outside, more than 20 feet away.

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  1. Right inside the garage door
  2. More than 20 feet away, outdoors ✔
  3. Just under the window

Why: Generators make carbon monoxide, a deadly gas you cannot see or smell. Never run one in a garage, even with the door open.

Huh, didn't know that: CDC also says to use a battery-powered or battery backup CO detector in your home.

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A generator is a great backup, but keep it outside. It's the only guest that should never come in.
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References

Answer: More than 20 feet away, outdoors. Generators make carbon monoxide, a deadly gas you cannot see or smell. Never run one in a garage, even with the door open.

  1. CDC: About Carbon Monoxide www.cdc.gov/carbon-monoxide/about/index.html
    Only use generators outside, more than 20 feet away from any windows, doors, and vents.
    Checked 2026-10-10.

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