What temperature should you heat each room to in winter?

Heat for the people in the room, then reduce avoidable waste.

The answer in 2 lines. There is no single US room-by-room heating rule for every household. Choose the lowest setting that keeps everyone comfortably and safely warm, then adjust for occupancy and the heating system. Older adults and people with health concerns may need warmer conditions. A central thermostat cannot independently control every bedroom and bathroom unless the system has suitable zoning. Rental heating requirements vary by state and city, and a legal minimum is not a personalized health recommendation.

The first steps

Check actual room conditions. Use a room thermometer away from direct sun, heating outlets and drafts. Compare the rooms people occupy with the temperature shown at the thermostat.
Identify the controls you have. A central forced-air system, independently controlled baseboards and a zoned system offer different options. Adjust only controls intended for occupants.
Put health before savings. Ask a clinician about individual needs if someone is especially vulnerable to cold. Don't apply an overnight setback simply because it works for another household.

Stop: danger

Possible hypothermia: confusion, slurred speech, unusual sleepiness or poor coordination in someone exposed to cold needs immediate attention. Call 911 if hypothermia is suspected.
Unsafe substitute heat: never use an oven to heat the home. Keep portable heaters away from bedding and curtains, plug them directly into wall outlets and turn them off before sleeping or leaving the room.

A practical approach by room

Room or situation	How to choose the setting
Living room or home office	Use the lowest comfortable setting while occupied. Account for long periods spent sitting still.
Bedroom	A lower setting may suit some sleepers, but don't assume it suits older adults, children or someone with a medical condition.
Bathroom	Keep it comfortable during use. Don't improvise with a portable heater near water.
Baby's room	Get individualized pediatric advice rather than copy an adult energy-saving schedule.
Unused room	Reduce heat only where the system permits and pipes, moisture conditions and neighboring rooms remain protected.

For older adults, National Institute on Aging cold-weather guidance available in 2026 advises heat of at least 68°F. Read its home-safety section before choosing a lower setting.

What not to do

Raising the thermostat far above the desired temperature in an attempt to warm the home faster.
Blocking registers, returns, radiators or baseboards with furniture and curtains.
Closing numerous forced-air vents to imitate zoning without advice about the system.
Ignoring persistent cold in an occupied room because the hallway thermostat shows the target temperature.

Setbacks depend on your heating system

A setback means choosing a lower temperature while asleep or away. For suitable systems and households, it can reduce heat loss. The Department of Energy's 2021 heating and cooling guide recommends the lowest comfortable winter setting while awake and a lower setting during sleep. Read its best-practices section, then adapt the advice to household needs.

Heat pumps require more care: recovery from a large setback can affect efficiency and may involve backup heat, depending on the equipment and controls. Ask the servicing professional how to program your system. Don't assume the same schedule suits a furnace, heat pump and slow-response radiant floor. Savings also depend on weather, insulation and occupancy, so a fixed percentage per degree would be misleading.

Rental rules are local

For a concrete example, New York City's official heating guidance sets requirements during the October 1–May 31 heat season: at least 68°F from 6 a.m. to 10 p.m. when it is below 55°F outside, and at least 62°F overnight regardless of outdoor temperature. These are NYC requirements available in 2026, not a national standard.

NYC renters should first notify the owner; that page explains how to make a complaint if heat is not restored. Elsewhere, check the applicable state and local housing requirements. Keep dated temperature readings and written repair requests. Don't assume a landlord's legal minimum defines a safe setting for every resident.

Good to know

If one room stays cold, investigate drafts, blocked heat delivery or a system problem before increasing the whole home's setting.
Open curtains for useful sunshine and close them at night without covering heating equipment.
Use the U.S. Fire Administration's heating-safety guidance to check any supplemental heater: it specifies keeping combustible items at least 3 feet from heat sources.

Illustrative example: Alex lowers the overnight setting but notices an older parent remains cold in the bedroom. Alex restores a warmer setting, checks the room temperature and moves furniture blocking heat delivery. The household chooses its schedule around that person's needs instead of applying the same setback everywhere.

A made-up story, for illustration.

Bobby

Sources, verification, confidence

Verified on November 5, 2026, for the United States. Confidence: high for the cited health and fire-safety guidance and NYC's stated requirements; medium for a particular household's ideal settings and savings. The 2021 energy guide is identified by its publication year; no new 2026 savings estimate is asserted.