For winter, the ideal thermostat temperature is 68 degrees Fahrenheit when you're at home. Energy.gov 68 degrees is a good room temperature while you're awake at home, but recommends lowering it while you're asleep or away. Lowering your thermostat 10-15 degrees for eight hours can reduce your heating bill by 5-15%.
The lower the temperature is inside of the home, the slower the rate of thermal energy loss. To achieve optimal comfort, it is recommended for homeowners to set their thermostats between 68 to 72 degrees while there are people inside of the home.
When gone, you can set your thermostat anywhere from 76 to 78. Additionally, if you set your thermostat a few degrees higher when you sleep (76-78), you can save energy (which means saving money in cooling costs).
The best bedroom 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 60 to 67 degrees Fahrenheit (15.6 to 19.4 degrees Celsius) for the most comfortable sleep.
Hot, dry air can leave you dehydrated, and even reduces your ability to fight off infections. Leaving the central heating on all night can also leave you thirsty and with a dry mouth.
Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings.
Any time you're awake and at home during the summer, the ideal thermostat temperature is 78 degrees. This home temperature for energy efficiency lowers your cooling bills by 12 percent compared to keeping it at 74 degrees. If you're afraid 78 degrees is too warm, remember to dress for the season.
Generally, our bodies are most comfortable when the air inside of our home is within a degree or two of a steady 75 degrees F during the hot, summer months. This temperature setting, however, is only necessary when your house is occupied during waking hours.
According to the Department of Energy, 68 degrees Fahrenheit is the sweet spot when you're home during the winter. You can also drop it down a few degrees when you're sleeping to save more energy, as you'll be under the blankets for extra warmth.
Even if you keep your temperature between 60°F and 65°F, your home or apartment may not be warm enough to keep you safe. This is a special problem if you live alone because there is no one else to feel the chilliness of the house or notice if you are having symptoms of hypothermia.
You'll likely feel more comfortable in a house that's set at 75 degrees with a lower humidity level than you would in a home that was set at 68 degrees with a higher humidity level. Once you have the right size air conditioner, there's still an ideal temperature range to consider.
The World Health Organization (WHO) recommends indoor temperatures of at least 64°F (you can drop that down to 62°F at night if you're really looking to save on your heating bill). But if you have infants, sick or elderly people in your household, then it's recommended that you keep the thermostat set at 70°F.
We recommend that you never set your thermostat above 79 degrees and never below 69. Again above 79 can cause the above issues and below 69 typically will make the air conditioner freeze up.
For most people, optimal sleeping conditions are between about 60° F and 68° F, and 40 to 60 percent humidity. Anything outside these ranges, experts say, and sleep quality plummets.
A safe temperature is accepted to be between 68 and 74 degrees Fahrenheit for people above the age of 65. The temperature inside your home should not reach below 68 degrees Fahrenheit in any case, as that increases the risk of respiratory disease and even hypothermia if there is prolonged exposure.
How cool should my house be if it's 100° outside? The majority of air conditioning units are designed to only cool the air about 20 degrees from the outside temperature. If the temperatures outside are approaching triple digits, you should set your thermostat at about 78°.
Best House Temperature While Away: 55–80 degrees
In general, it's safe to increase indoor temperature up to 80 degrees in summer and decrease indoor air temperature to 55 degrees in winter, but there are exceptions - for example, if you live with a baby or an elderly or immune-compromised individual.
One heating and air conditioning company recommends maintaining indoor temperature between 68 and 74 degrees; similarly, the researchers behind that European study recommend that seniors keep the temperature at 68 degrees or warmer.
While some homeowners have considered turning off their heat at night in an attempt to lower their heating bills, it generally is not recommended as a viable option. The fact is, turning your heat off at night creates more potential risk for your home and your family than it does savings on your energy bill.
The startup process for a furnace consumes more energy than simply running the entire time at one set temperature, costing you additional money. To maximize efficiency, it's best to keep your furnace (or AC) at the same consistent temperature for long periods of time.
According to Energy.gov, the better way to save money on heating bills is to set back the temperature of your home at least 8 degrees for 8 hours or longer (while you sleep). In fact, you can save 1% on your heating bill for every degree that you lower the thermostat.
According to the Harvard Medical School, your body begins to drop in temperature right before you fall asleep. During sleep, your core temp is reduced by 1 to 2°F, as a way to conserve energy. Sleeping in a colder room will help you drop to that level faster, which will help you fall asleep (and stay that way) quicker.
While the ideal bedroom humidity can differ based on climate and temperature, research suggests that the best relative humidity for sleeping is between 40% and 60%8. This range is also helpful for reducing indoor pollutants that can interfere with sleep.