⚠️ Generator safety in Florida
Run it outdoors, at least 20 feet from the house, exhaust pointed away from every window and door — never in a garage, carport or porch, even with the door open. Put a working carbon monoxide alarm on every level of the home. Never plug a generator into a wall outlet to power your house. Carbon monoxide from portable generators kills roughly 85 people a year in the US, most of them in the days right after a storm.
Sources: US Consumer Product Safety Commission ·CDC Carbon Monoxide ·Ready.gov. Reviewed .
The eight rules
The first four have killed Floridians. The last four wreck equipment and start fires.
1 Outdoors only — 20 feet minimum, and never in a garage life-safety
A portable generator must run outdoors, at least 20 feet from the house, with the exhaust pointed away from every window, door and vent. An open garage door is not ventilation. A carport is not outdoors. A screened porch is not outdoors. Carbon monoxide accumulates in these spaces to lethal levels within minutes.
2 A CO detector on every level, tested before the storm life-safety
Carbon monoxide is colorless and odorless — there is no symptom that reliably precedes unconsciousness. Battery-powered or battery-backed CO alarms on every level of the home are the only warning that works when the grid is down. Test them the day a watch is issued, not after.
3 Never backfeed through a dryer or range outlet life-safety
Plugging a generator into a household outlet to energize your panel — "backfeeding" — sends unregulated current backward onto the utility line. It can electrocute the lineworker restoring your power, and it bypasses every breaker protecting your home. Use a properly installed transfer switch or an interlock kit, or run appliances on cords.
4 Let it cool before refueling life-safety
Gasoline spilled on a hot engine or hot exhaust ignites. Shut the generator down and give it several minutes to cool before adding fuel. Store fuel in approved containers, outside the living space, away from any appliance with a pilot light.
5 Use 12-gauge cords, and only outdoor-rated ones
Undersized extension cords are the most common non-fatal generator failure. A thin 16-gauge cord carrying a heavy load drops voltage, overheats, and melts plugs. Use 12 AWG (12/3) outdoor-rated cords for any run over 25 feet or any load above about 1,000 watts.
6 Keep it dry — but never under a tarp against the unit
Water and generators do not mix, but a tarp draped on a running generator traps exhaust and heat. Use an open-sided generator tent or canopy that keeps rain off while leaving all four sides open. Never operate one standing in water.
7 Match the generator type to the load
Conventional (non-inverter) generators produce power with high total harmonic distortion, which can damage computers, modern televisions and sensitive medical equipment. Use an inverter generator for electronics — or better, use the generator to charge a battery power station and run electronics off the battery.
8 Ground it and check the GFCI
Follow the manufacturer's grounding instructions for your model and configuration. Test the built-in GFCI outlets before the storm; a failed GFCI on a wet Florida driveway is a serious shock hazard.
Recognizing carbon monoxide poisoning
Early symptoms mimic the flu without a fever: headache, dizziness, weakness, nausea, confusion, shortness of breath. Higher exposure causes vomiting, loss of consciousness and death. Confusion is the dangerous part — a person impaired by CO frequently cannot recognize the danger or self-rescue.
If a CO alarm sounds, or anyone shows these symptoms: get everyone outside into fresh air immediately, then call 911. Do not go back inside to search for the source or open windows first. Infants, older adults, and people with heart or respiratory conditions are affected at lower concentrations.
The safest setup: generator outside, battery inside
The configuration most Florida households should use: the generator runs outdoors, 20+ feet away, on heavy-gauge cord, and its only job is recharging a battery power station. The battery comes inside and runs the refrigerator, the CPAP, the fans and the phones — silently, with no exhaust and no CO risk.
This gives you a generator's multi-day range with a battery's indoor safety, and it means you can shut the generator off overnight instead of running it while everyone sleeps. Seewhy power stations are safe indoors for the full reasoning.
Safety gear worth owning before the season
CO alarm, 10-year sealed battery — one per level of the home. The single most important item on this page.
12/3 outdoor extension cords, 50ft — the correct gauge for generator runs.
Transfer switch kit — the safe alternative to backfeeding. Licensed electrician installation.
Inverter generator — clean power safe for electronics, and quiet enough for a neighborhood.
Paid Amazon links (disclosure).
Questions people actually ask
How far from the house does a generator need to be?
At least 20 feet from the home, with the exhaust directed away from all windows, doors and vents. This is the CDC and CPSC recommendation. Distance alone is not enough — direction of exhaust matters just as much, because wind can push carbon monoxide back toward an opening.
Can I run a generator in my garage with the door open?
No. An open garage door does not provide adequate ventilation. Carbon monoxide accumulates to lethal concentrations in an attached garage within minutes and then migrates into the living space. Garages, carports, sheds, porches and breezeways are all unsafe.
What is backfeeding and why is it dangerous?
Backfeeding is plugging a generator into a household outlet to energize your home's wiring. It sends current backward onto the utility distribution line, where it can electrocute lineworkers restoring service, and it bypasses your circuit breakers. Use a transfer switch or interlock kit installed by a licensed electrician instead.
How many people die from generator carbon monoxide each year?
The US Consumer Product Safety Commission attributes roughly 85 deaths per year to carbon monoxide poisoning from portable generators, with fatalities concentrated in the days following hurricanes and winter storms when generator use spikes.
Is a battery power station safer than a generator?
Yes, for indoor use — a battery power station produces no combustion and no carbon monoxide, so it can run safely inside a bedroom. It cannot match a generator's multi-day output, so many Florida households use both: the generator outdoors to recharge, the battery indoors to run loads.
What size extension cord do I need for a generator?
Use 12 AWG (12/3) outdoor-rated cord for any run over 25 feet or any load above roughly 1,000 watts. Thinner 14 or 16 gauge cords cause voltage drop and overheating under heavy load, which damages appliances and melts connectors.
Go deeper
The specific generator mistakes Floridians make ·Solar generator vs gas generator ·Whole-house generator vs power station cost ·Home battery vs generator ·Run the pre-storm systems check
Compiled by Hilario Herrera from CPSC, CDC and Ready.gov guidance. This page summarizes published safety guidance and is not a substitute for your generator's manual or a licensed electrician's advice. Transfer switch and interlock installation must be performed by a licensed electrician and permitted where required.