Can you leave a house unheated in the winter?

Author: Macy Johnston  |  Last update: Friday, October 17, 2025

However, turning your heat too low or off completely can leave you with a bigger issue than a high energy bill – burst pipes and damaged property. And if you're not home when a loss occurs and the damage isn't addressed immediately, you could be dealing with a serious issue.

Is it okay to leave a house unheated in the winter?

Don't leave a vacant house unheated in the winter. You know how houses deteriorate rapidly after being abandoned? It's because without heat, moisture collects, mold and other fungus sets in, wood expands, studs and joists begin to warp, accelerated by freeze-thaw cycles.

What temperature should you keep an unoccupied house in the winter?

When leaving an empty house in winter, it's important to maintain a temperature that prevents pipes from freezing and protects the home's structure. A common recommendation is to set the thermostat between 55°F to 60°F (13°C to 16°C). Here are some additional tips:

What is the lowest temperature you can keep a house in winter?

For short periods of time away, like going to work, we'd recommend a temperature of around 55 – 60 degrees (F). While away on long periods of time, such as vacation, we don't recommend setting the temperature any lower than 50 degrees (F).

Will pipes freeze in a house without heat?

Answer: Pipes are vulnerable to freezing when exposed to extremely low temperatures, especially if they lack insulation or are located in unheated areas like attics, crawl spaces, or outside walls. Homes with inadequate heating during freezing weather are also at risk.

Heating an Empty House in the Winter

How long can a house go without heat in the winter?

Generally, a house will stay warm for 8–12 hours after losing heat. However, without intervention, it will eventually reach outdoor temperatures. If temperatures are frigid outside, maximize the warmth by gathering the family in a small room, wearing many thin layers, and placing towels around windows and doors.

What temperature should you leave your house so pipes don t freeze?

As a general rule, the “temperature alert threshold” for freezing pipes is about 20 degrees Fahrenheit.

What is an unsafe temperature for a house?

It's advisable to keep your home below 80 degrees throughout the summer. A house that's too warm can be dangerous to people, pets, and the soft surfaces in your home. Set the winter temperature to 68 degrees when you're awake and 62 degrees when you're sleeping.

How cold will an unheated house get?

How cold can a house get without heat overnight? The time of day your heater goes out impacts how long the house stays warm. Indoor temperatures go down faster at night, so if your furnace stops overnight, you can expect a quicker decline. This can be as much as 15 degrees Fahrenheit before morning.

Why does my house feel cold at 20 degrees?

There may be drafts and pockets of colder air near the floor; The walls are colder and don't emit the usual amount of infrared radiation, so you lose heat due to your body emitting more IR than it receives; You may spend more time indoors and hence have less physical activity, so your body generates less heat.

How to winterize an empty house?

Steps to winterize your vacant house
  1. Shut off the water at the street. ...
  2. Give some attention to your water heater. ...
  3. Open up the lowest faucets on your property. ...
  4. Drain the system. ...
  5. Pour environmentally safe, biodegradable antifreeze into each of the drains. ...
  6. Tape the toilets shut and post signage.

What temperature to set a thermostat to prevent freezing?

Regardless of how long you will be traveling and away from home, keep your thermostat set at 68 degrees Fahrenheit or above. This will help to keep the pipes on the inside of the home from freezing and the ones under the home at a slightly higher temperature as well.

Does turning the heat on and off raise the bill?

Thermostat settings play a pivotal role in managing your heating system's efficiency. It's a common misconception that leaving your heating on at a constant temperature is more energy-efficient than turning it on and off. Does turning the heat on and off raise the bill each month? The answer is no.

What is the healthiest temperature to keep your house in the winter?

The ideal thermostat temperature in the winter is 68 degrees Fahrenheit when you're at home. Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away.

How do I stop my pipes from freezing in an empty house?

Five tips to avoid freezing pipes in your unoccupied home
  1. Insulate pipes and water tanks. Wrap outside pipes and those in colder areas of the home with insulation. ...
  2. Leave the heating on. If it's feasible, set your thermostat to 15C. ...
  3. Turn taps on regularly. ...
  4. Isolate outside water supplies. ...
  5. Drain the water system.

Is it OK to leave a room unheated?

It is easier for viruses to spread because we're more likely to meet up indoors with the windows shut and no fresh air to blow viruses away. Cold also makes it easier for viruses to survive outside the body and cold air contains less virus-trapping moisture.

Is it OK to leave a house unheated in the winter?

If you fail to take reasonable measures to keep your home heated in the winter, not only could you suffer from burst pipes and water damage, you could also face coverage exclusions in your homeowners policy.

What happens to a house with no heat in the winter?

Your home will shield you from the wind and precipitation, but no matter how well-insulated it is, it will eventually become as cold as outside. That's because the house transfers heat to the outdoors through conduction, convection, and radiation until it reaches equilibrium with the outside temperature.

What happens if I don't heat my house?

Plaster on walls can crumble, and paint or wallpaper can peel. Wooden window frames will start to rot, and even electrical equipment can be damaged as the water causes corrosion on components. Good ventilation in a property helps to reduce the amount of moisture trapped in the air.

What is the lowest temperature I can leave my house at?

For short periods of time away, like going to work, we'd recommend a temperature of around 55 – 60 degrees (F). While away on long periods of time, such as vacation, we don't recommend setting the temperature any lower than 50 degrees (F).

What's the coldest you should let your house get?

The best winter thermostat setting is 62 to 68 degrees. On winter days, program your home's thermostat to 68 degrees for a comfortable indoor temperature while you're home and awake. When sleeping, program your thermostat to 62 degrees. Consider rolling this temperature back to 55 degrees when no one is home.

Is 62 too cold for a house in winter?

But don't take it from us, take it from the World Health Organization: They recommend a temperature of at least 64°… and raising that to at least 70° if there are babies, elderly people, or otherwise immunocompromised people in the home.

Will pipes freeze if the house is set to 62 degrees?

What Temperature Will Cause My Pipes to Freeze? Pipes run the risk of freezing at temperatures below 32 degrees Fahrenheit, especially if they're not insulated, but most insulated pipes start to freeze at 20 degrees Fahrenheit or below.

What is the cheapest temperature to keep your house in winter?

To save money, aim to have your temperature set around 68-72 degrees Fahrenheit when you're at home and awake. This is a comfortable temperature for most with the help of a light sweater. Overnight and when you're out, around 64 degrees Fahrenheit will keep your home at a good temperature.

Can pipes freeze in one night?

Yes, pipes can freeze overnight if temperatures plummet drastically. Uninsulated pipes in unheated areas like attics or exterior walls are most vulnerable.

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