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Backyard Chickens

Keeping Chickens Through a Mountain Winter Without Heat Lamps

Cold does not kill a healthy flock. Damp air and 3 a.m. predators do. Here is how we winter eight hens at 3,000 feet.

9 min read Beginner
Chickens foraging in a snow-edged run beside a wooden coop

Every winter somebody in the valley loses a coop to a heat lamp fire, and every winter somebody else loses birds to frostbite in a coop they sealed up tight to keep them warm. Both are the same mistake.

A dry, well-ventilated, unheated coop will carry a feathered flock through −10°F without a problem. Ours has for nine winters.

Materials

  • Ridge vent material
  • Pine shavings, 6–8 in deep
  • ½in hardware cloth
  • Heated waterer base or rubber pans

Tools

  • Drill
  • Tin snips
  • Staple gun
  • Manure fork

Estimated cost: $120 in upgrades. Difficulty: Beginner.

1.Ventilate above roost height

Open venting at the ridge, none at bird level. Moisture from breath and droppings rises and leaves; the birds sit in still air below it. A sealed coop puts that moisture back on their combs as frostbite.

Ridge ventilation gap at the top of a wooden coop wall

2.Run deep litter from October

Start with six inches of pine shavings and add on top rather than cleaning out. The composting litter generates gentle heat, absorbs moisture, and gives the birds something to scratch through on days they will not go out.

3.Solve water, not warmth

Liquid water twice a day matters more than air temperature. A heated base or two rubber pans swapped morning and evening both work. Never put a heat lamp over bedding.

4.Predator-proof for the hungry months

Late winter is when raccoons and weasels get desperate. ½-inch hardware cloth, not chicken wire, on every opening, plus two-step latches raccoons cannot work. An automatic pop door closes on schedule even when you are late home.

5.Give them a wind-blocked outdoor space

Wrap two sides of the run with clear poly and throw straw down. Ours are out most days at 15°F if the wind is off them, which keeps laying up and boredom pecking down.

Common questions

Do chickens need a heated coop?
No. Cold-hardy breeds handle sub-zero nights fine. Ventilation without drafts matters far more than heat, and heat lamps are the leading cause of coop fires.
Will hens keep laying in winter?
Production drops with daylight. Fourteen hours of light keeps them laying; many keepers give the flock a natural rest instead and accept a slow winter.
How do I keep water from freezing?
A heated base under a metal waterer draws far less power than a heat lamp and eliminates the twice-daily ice-breaking chore.
Ellis Hartwell

Written by

Ellis Hartwell

Twelve years building and rebuilding systems on 28 mountainside acres. Everything published here has run on this property or been documented on site with the owners.

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