Should you leave the heat on overnight? | Arcadia (2024)

Let’s say you have a really warm bed — a heated blanket and mattress pad, maybe a thick comforter or duvet — and you like the cool winter nights to begin with.

You might be tempted to consider turning off the heat at night. And on the surface, this makes sense: if you don’t need the heat, then what’s the point of running it at all?

But turning off your heat at night can be a costly mistake for your home and your health. Does turning your heat down at night save money? Not when you consider all of the factors in play.

It will cost you sleep

We all need a good night’s sleep. It’s one of the most effective healthy activities that you can do to save money.

Yes, we did say, “save money by sleeping.”

When you don’t get a good night’s sleep, you risk developing various health concerns. If you are dealing with poor health related to your sleep, you might find yourself spending more money on prescription medications or even just daily stimulants to keep yourself going.

That loss of energy transfers to your workday. When your productivity drops, so does your income.

Doctors say that temperatures below 60 degrees are not ideal for sleeping. So if you turn off your heat in an effort to save a few bucks, you’re likely going to lose sleep.

And that is doubly important for those of us living in places where temperatures routinely drop into the single digits through the cold winter.

You risk damage to your home

What would you do if you woke up in the morning to an unexpected $5,000 withdrawal from your bank account?

Turn off your heat in the winter and you might find out. When temperatures fall below freezing, the cold snap can cause a soda can-like reaction throughout your house.

When water freezes, it expands. As it swells, it puts more pressure on your pipes, eventually causing them to burst. If you put a soda can in the freezer long enough, it’ll explode. Now imagine that reaction running through your house’s pipes.

Water could escape those pipes and flood your home. And with burst pipes, you would be lucky to shell out just $5,000 to fix the damage.

A better idea: Turn the heat down, not off

Not only is it okay to leave the heater on all night, it can save you money.

Here’s the secret: Set the temperature of your home at least eight degrees lower for the eight hours or so that you sleep at night. Every degree you lower the thermostat can net you an estimated 1% off your heating bill.

So, eight degrees for eight hours a day can save you up to $180 every year.

The reason this works so well isn’t exactly what you think. Yes, the furnace doesn’t have to run as often when the temperature is lower. But saving money on your heating bill has just as much — if not more — to do with managing heat loss.

If your house is warm, it loses heat more quickly when it’s cold outside.

Keep your house temperature lower and it will lose heat more slowly. Yes, your furnace will kick in to bring the house back up to temperature in the morning. But you still use less energy than if you kept the house at a warm temperature the entire time.

But don’t take our word for it — test it yourself! Every home is different, and that “sweet spot” on the thermostat depends on how well-insulated your home is. Figure out where that spot is. Then get a programmable thermostat (if you don’t have one) to put your furnace on a schedule and sleep tight.

Should you leave the heat on overnight? | Arcadia (2024)

FAQs

Should you leave the heat on overnight? | Arcadia? ›

Not only is it okay to leave the heater on all night, it can save you money. Here's the secret: Set the temperature of your home at least eight degrees lower for the eight hours or so that you sleep at night.

Should you leave heat on overnight? ›

You should leave your heater on to minimize the drastic change in temperature, too. If you turn your home's furnace off at night, it becomes much harder for the system to heat your home during the next day to reach a comfortable level, and that means an increase in your energy bills.

Is it healthy to have heating on all night? ›

It's not only getting to sleep that can be a problem if your room is too warm though. Studies by Tohoku f*ckushi University explain that heat exposure can increase the number of hours we spend awake during the night and reduce the amount of slow-wave sleep and rapid eye movement we experience.

What temperature should you leave your heating on overnight? ›

And The World Health Organisation (WHO) suggests 18 degrees is the ideal temperature for healthy and well-dressed people. Both agree this is also the ideal temperature for sleeping.

Should you turn on the heat at night? ›

It's More Advisable to Turn the Heat Down, Not Off

HVAC replacement companies recommend turning the temperature down by at least eight degrees before you go to sleep for eight hours or more, depending on how long you sleep at night.

What temperature should I leave my heating on overnight to stop pipes freezing? ›

If you have central heating, use the thermostat to keep the temperature comfortable. We recommend between 18 and 22. If it's freezing outside, set the heating to stay on continuously, but turn the thermostat lower for the night. Remember, the higher the thermostat, the more fuel you use.

Is it OK for heat to run all night? ›

It isn't bad to run your heating system on a 24/7 basis if outdoor weather conditions demand indoor warmth. For many households, maintaining a constant indoor temperature is the only way to survive the winter. Just be aware that this is likely to cause additional wear and tear on your heating system.

What happens if you sleep with a heater on all night? ›

Do you sleep with the heat on? If you answered yes, you could be damaging your quality of sleep. With colder temperatures outside it can be tempting to keep the central heating on during the night - but new research has found it can lead to a restless night's sleep as our bodies can overheat much more quickly.

Is it OK to sleep with heating on? ›

When the heating is on, it can dry out the air, making the room stuffy and uncomfortable to sleep in. You might find that it's harder to breathe in and it could cause dry throats and nasty coughs.

Does turning the heat down at night save money? ›

Yes, homeowners can save money on their energy and heating bills by turning the thermostat down. You can save almost 15 percent of your total heating bill by lowering your heat by seven degrees overnight (or for any other eight hour period).

What should I set my heat to overnight? ›

The U.S. Department of Energy says an indoor temperature of 65 degrees Fahrenheit at night is best. Setting your thermostat to a lower temperature at night may actually help you sleep better. Medical experts know that our body temperature drops at night.

How much to leave heating on all night? ›

So if you have your heating on overnight for eight hours, it could cost you £22.08. And if you were to leave it on for 24 hours it would cost £66.24. Multiply that by seven and you'd be paying £463.68 for the week.

What temp should house be at night in winter? ›

Keep your heat at 68 degrees during the day. Lower it to 64-67 degrees when you're sleeping. Keep your heat between 60-65 degrees when you're out of the house for extended periods of time.

Can I leave heat on all night? ›

Not only is it okay to leave the heater on all night, it can save you money. Here's the secret: Set the temperature of your home at least eight degrees lower for the eight hours or so that you sleep at night. Every degree you lower the thermostat can net you an estimated 1% off your heating bill.

Does it cost more to keep turning heat on and off? ›

Despite the above facts, some engineers still maintain that keeping your boiler on low all the time can save you money – in the short term at least. This is because turning your boiler on and off regularly will mean your boiler will need to use more energy to heat your home from cold to the desired temperature.

What is the best temperature to sleep? ›

The best room temperature for sleep is approximately 65 degrees Fahrenheit (18.3 degrees Celsius). This may vary by a few degrees from person to person, but most doctors recommend keeping the thermostat set between 65 to 68 degrees Fahrenheit (15.6 to 20 degrees Celsius) for the most comfortable sleep.

Does turning your heat down at night save money? ›

Yes, homeowners can save money on their energy and heating bills by turning the thermostat down. You can save almost 15 percent of your total heating bill by lowering your heat by seven degrees overnight (or for any other eight hour period).

How much does it cost to leave the heating on all night? ›

So if you have your heating on overnight for eight hours, it could cost you £22.08. And if you were to leave it on for 24 hours it would cost £66.24. Multiply that by seven and you'd be paying £463.68 for the week.

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