Set your thermostat fan to ON when you need constant air circulation, better filtration, or to balance uneven temperatures. Set it to AUTO for everyday use, as it saves energy and helps control indoor humidity by letting the system drain moisture properly.
For the best balance of comfort, lower energy bills, and system longevity, Auto is the recommended setting for most homes. The fan will only run when your heating or cooling system is actively working, saving electricity and reducing wear on your HVAC motor.
Yes, 72°F is a very comfortable temperature for your daytime heat setting. However, it is slightly higher than the recommended energy-saving guidelines, which could increase your heating bill.
If we assume an average of 10 hours on and 14 hours off per day, energy costs are reduced by 60% to about $18 per month or $215 per year. Bottom line – If you run the fan in AUTO mode, you'll save about $300 per year.
One of the main benefits of setting the fan to “on” is better air circulation throughout your home. When the fan is continuously running, it helps distribute heat more evenly, reducing hot and cold spots in different rooms. This can be especially beneficial in larger homes where temperature inconsistencies are common.
If you'd like to calculate your ideal HVAC fan runtime, here's a simple formula: Measure the square footage of your home. Divide the square footage by 2. This number represents the number of minutes your HVAC fan should run per hour.
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.
If you have radiators, try setting the flow temperature to 60 degrees Celsius. If you have underfloor heating, try setting the flow temperature to 50 degrees Celsius. If you want to save more energy, try setting the flow temperature 5 degrees Celsius lower and see if you still find the temperature comfortable.
Running a typical household fan for 8 hours costs between $0.01 and $0.14. The exact price depends on your local electricity rates and the fan's wattage (usually 10W to 100W).
Running the furnace fan all the time means there's less stale air in the home and can also help regulate cool and warm spots. However, this setting uses more electricity to run, which can be a problem if you have an older furnace with an AC motor.
While everyone has a different tolerance to cold, ideal winter heat settings should generally be at or above 63 °F (17 °C). Excessive cold (anything below 62 °F or 16 °C) in your home can actually raise your blood pressure as your blood “thickens” in the chilly temperatures.
Heating will produce a low RH whereas the cooling is almost fully saturated air, the extra humidity during cooling will make it feel colder than the 72 setpoint due to wet bulb temperature....... The dry 72 degrees setpoint during heating season will feel closer to actual temperature due to lower humidity.
Keep your thermostat set to a minimum of 55°F (13°C) to keep your pipes from freezing. If you are leaving the house for an extended period, maintain this temperature to ensure heat reaches the walls where pipes are located.
Should I Set My Thermostat Fan to "ON" or "AUTO"? The Short Answer Is: The best thermostat fan setting for your heating and cooling system depends on your comfort preferences and energy efficiency goals. "AUTO" is the more energy-efficient option, as it runs the fan only when heating or cooling is actively needed.
Heating a house 2 degrees typically takes 15 to 45 minutes in a well-insulated home. For larger spaces, older properties, or when using slower systems like heat pumps, it can take 1 to 2 hours.
Helpful Habits. Keeping vents clear also plays a role in your furnace's efficiency. Furniture, rugs, or curtains blocking airflow can cause uneven heating and make your furnace run longer than necessary. Make sure warm air can circulate freely in every room of your home and avoid closing too many vents.
Heating and cooling (HVAC) systems are the biggest energy consumers in a typical house, accounting for roughly 45−50% of your total electricity usage. Water heaters, refrigerators, and lighting round out the rest of the major draws.
Electric heating systems and tumble dryers tend to be the most expensive electrical items to run because they use large amounts of power over extended periods. Other high-cost appliances include electric ovens and immersion heaters.
When the fan creates a cool breeze at night, it is easier for us to relax. Leaving the fan running at night in summer can therefore help you to get a good night's sleep.
What is the Best Temperature to Keep Your House in the Winter? The average ideal room temp is around 68–72° F in the winter, depending on your personal preference.
It is almost always cheaper to lower your thermostat when you are away or sleeping than to maintain a constant temperature, according to the Department of Energy.
Even at a low temperature, keeping your heating on for extended periods will burn through more energy, and more money. Generally speaking, it's best to turn your heating on only when you actually need warmth to keep your home warm without overspending.
No, 68°F is not generally considered cold for a house in winter. In fact, experts at the U.S. Department of Energy recommend 68°F as the ideal, energy-efficient temperature for the winter months while you are awake.
Setting to 65 degrees in Winter and to 78 degrees in Summer while at home and switching to energy saving mode when away can help save energy.
It's better to leave interior doors open when heating your home. Open doors allow warm air to circulate evenly, preventing hot and cold spots and reducing the strain on your HVAC system. Closed doors can block airflow, making your system work harder and increasing energy costs.