Power Outages

Backyard Poultry in a Power Outage: Keeping Water Unfrozen and Chicks Alive Without Electricity

By EmergencyPetPrep Editorial · Updated

Short answer: Extension guidance calls for supplemental coop heat below 35 degrees F. Day-old chicks need a brooder at 90 to 95 degrees F, so we advise moving them indoors if you cannot heat it.

Researched and written with AI assistance from the published sources listed at the end of this page. We are not veterinarians, no veterinarian has reviewed this page, and we do not test products by hand, so check those sources and talk to your own vet about your animal. How we work →

Read this first

Some pet emergencies outrun any checklist. If an animal is collapsing, struggling to breathe, or was exposed to something toxic, stop reading and call your veterinarian or the nearest emergency animal hospital now. When officials order an evacuation, go; nothing on this page is worth delaying your own exit. This article is spec-and-evidence analysis of published guidance, not veterinary care for your specific animal. Where your vet's instructions or an official order differ from anything here, they win.

Key takeaways

  • A flock in a power outage is two problems. University of Minnesota Extension says to provide supplemental heat when the coop falls below 35 degrees Fahrenheit. Day-old chicks depend on a brooder held at about 90 to 95 degrees, per University of Missouri Extension.
  • Ohio State University Extension says frozen water is inevitable in winter and to change the water twice a day, more often when colder, and check it in the evening. University of Minnesota Extension adds a spare waterer to swap in.
  • Even automatic waterers can freeze if they are not heated or insulated. Ohio State University Extension also cautions that heated water bowls or containers may malfunction and cause a fire, so a heated unit still needs watching.
  • Heat lamps are a fire risk. University of Minnesota Extension says never to hang one by the cord, to keep wires away from birds, water and litter, and to use extension cords only short term.
  • If you cannot hold the brooder at a temperature you can check with a thermometer, move the chicks indoors. A chilled or lethargic chick, or an adult that stops eating or drinking, needs a veterinarian or an experienced poultry contact promptly.

In a winter power outage, grown birds need their water kept from freezing, and chicks in a brooder need heat. For adult poultry, University of Minnesota Extension says to provide supplemental heat when coop temperatures fall below 35 degrees Fahrenheit. Day-old chicks are different. University of Missouri Extension says the brooder should sit at about 95 degrees Fahrenheit in cold weather and 90 in hot weather. Plan for the two separately.

This page covers a flock that stays where it is. If your birds have to leave ahead of a wildfire or an evacuation order, use our backyard chicken emergency evacuation guide. For dogs and cats in the cold, use our winter storm and extreme cold pet safety guide.

Keep the Water From Freezing

With no power, a heater is not an option, so the sourced fix is a schedule and a spare container.

  • Change the water twice a day. Ohio State University Extension’s factsheet ANR-66 says: “Change the water twice per day, and change the water more often on colder days to prevent freezing.”
  • Check it in the evening. The same factsheet says to check the water source in the evening so the birds have water available for the full 24-hour time.
  • Keep a second waterer. University of Minnesota Extension says to bring a frozen waterer into a heated area such as a garage or porch to thaw, and to have a spare on hand in case one freezes or stops working. With two, one is in use while the other thaws indoors.
  • Do not count on an automatic waterer. Ohio State University Extension says: “Even automatic waterers can freeze if not heated or insulated.”

Container shape and color are not addressed by the extension sources cited here. The schedule and the spare are what they recommend.

Heated waterers and generators

A heated waterer means fewer trips outside, not no attention. Ohio State University Extension says heated water bowls or containers help keep water from freezing, but “these devices may malfunction and cause a fire.” If you power one from a generator, watch it. Our generator sizing for pet loads guide covers what the generator can carry and where it has to sit.

Adult Birds: When the Coop Needs Heat

University of Minnesota Extension says most poultry can maintain their body temperatures when the environmental temperature is between 60 and 75 degrees Fahrenheit. Below that range, its instruction is to provide supplemental heat when coop temperatures fall below 35 degrees Fahrenheit, at the height of the nest boxes or the lower rung of the roost.

The guide does not call for supplemental heat above 35 degrees. In our view, frozen water is the more pressing daily problem for adult birds, so put the water schedule first.

Brooder Chicks: The Emergency Within the Emergency

Day-old chicks depend on the brooder for heat. University of Missouri Extension gives the targets:

  • Week one: about 95 degrees Fahrenheit in cold weather and 90 degrees in hot weather.
  • After that: drop the temperature 5 degrees each week until the chicks are five weeks old, then hold it at 70 degrees. The guide also says to follow the brooder manufacturer’s recommendations.

An adult bird’s cold threshold of 35 degrees and a week-old chick’s brooder target of 90 to 95 degrees are very different numbers. A plan for the coop does not cover the brooder.

If the heat lamp goes dark

The extension sources cited here do not describe a non-electric heat source, wattage or backup device for a brooder in an outage, so this page does not offer one. What they do give is a behavior check. University of Missouri Extension says chicks crowd together near heat when they are too cold, and they pant and gasp, often at the outer edge near the chick guard ring, when overheated. Crowding is the cold signal. Panting at the edges is the heat signal, and it matters again when power returns and you do not want to overheat chicks you just kept warm.

Our own recommendation, not a rule from those sources: if you cannot hold the brooder at a temperature you can confirm with a thermometer at chick height, move the whole brooder indoors to the warmest available room. Do not rely on a workaround you cannot check.

Heat lamp and cord safety

Once power is back, from the grid or a generator, do not plug a heat lamp in without a second look. University of Minnesota Extension says to use heat lamps with safety in mind, to read fire risk warnings and follow installation instructions, and: “Never hang a heat lamp by the cord.” It also says to keep all wires away from poultry, water and flammable litter to prevent damage, shocks or fires.

On extension cords it says to use them only short term, not to use them to run power to your coop, and to work with a professional electrician when installing electricity in your coop. Running a cord for the length of an outage is short term. Treating it as the coop’s permanent power supply is not, and that is a job for an electrician.

When to Call for Help

A chilled adult bird that stops eating or drinking, or a chick that is lethargic, unresponsive or not warming up, needs a veterinarian or an experienced poultry-extension contact promptly. This page gives temperature targets and behavior cues. It does not give treatment, dosing or a home remedy for a bird already in trouble.

For food and water totals for the rest of your animals through the same outage, see our emergency food and water storage guide.

Frequently asked questions

How do you keep chicken water from freezing without electricity?

Change it on a schedule and keep a spare. Ohio State University Extension's factsheet ANR-66 says to change the water twice per day, and more often on colder days. University of Minnesota Extension says to bring a frozen waterer into a heated area such as a garage or porch to thaw, and to have a second waterer on hand in case one freezes or stops working.

What temperature do day-old chicks need in a power outage?

University of Missouri Extension says to set the brooder at about 95 degrees Fahrenheit in cold weather and 90 in hot weather, then drop it 5 degrees each week until week five, when it holds at 70. That guide does not describe a non-electric heat source for an outage. If you cannot hold a temperature you can verify with a thermometer, move the brooder indoors to the warmest available room.

Can backyard chickens survive a power outage without a heat lamp?

Grown birds are far more resilient than chicks. University of Minnesota Extension says most poultry hold their body temperature between 60 and 75 degrees Fahrenheit and to provide supplemental heat when the coop falls below 35 degrees. It does not call for a lamp above that, and in our view frozen water is the bigger daily problem. Day-old chicks are different: they need the 90 to 95 degree brooder.

How often should you check poultry water in freezing weather?

At least twice a day, more often as it gets colder. Ohio State University Extension says to change the water twice per day and to check the water source in the evening, so the birds have water for the full 24 hours. An automatic waterer does not remove the need to check: it can freeze if it is not heated or insulated.

Is it safe to run a heat lamp or heated waterer from a generator?

Both carry fire warnings. University of Minnesota Extension says to read fire risk warnings, follow installation instructions and never hang a heat lamp by the cord. Ohio State University Extension says heated water bowls or containers may malfunction and cause a fire. Watch any heated unit, and use extension cords only short term.

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Sources

We are not veterinarians, and we would rather you check these than take our word for anything. These are the sources this page relies on. For your own animal, your vet is the expert, not this page.

  1. University of Missouri Extension, Small Flock Series: Brooding and Growing Chicks (publication G8351, revised June 1999). Supports the 95 and 90 degree Fahrenheit brooder targets, the weekly 5-degree step-down to 70 degrees at five weeks, and the chick-behavior cues. (opens in a new tab)
  2. University of Minnesota Extension, Caring for chickens in cold weather (authors Colleen Carlson and Hannah Lochner, reviewed 2026). Supports the 60 to 75 degree range, the 35 degree supplemental-heat instruction, the spare waterer, and the heat-lamp and extension-cord safety instructions. (opens in a new tab)
  3. Ohio State University Extension (Ohioline), Winter and Your Backyard Chickens, factsheet ANR-66 (Sabrina Schirtzinger and Tim McDermott, DVM; posted December 19, 2018). Supports the twice-daily water change, the evening check, the automatic-waterer warning and the heated-bowl fire caution. (opens in a new tab)