Turn off your furnace in late spring when outdoor temperatures consistently reach 15∘C 15∘C ( 60∘F 60∘F) or higher. Shutting it down during the summer saves standby electricity, reduces wear and tear, and stops the system from kicking on during random spring cold snaps.
Times You Might Want to Shut Off Your Furnace
If you're not sure how long it takes, try turning the heating on about 30 minutes before you need it. You should turn it off 30 minutes before you'll stop needing it. You might need to turn on your heating earlier if your home takes longer to reach a comfortable temperature.
Is 72 a good temperature for heat in the winter? While slightly higher than the typical energy-saving range of 68°F–70°F, 72°F still offers a reasonable balance between comfort and efficiency.
Heating Schedules. Keep to a steady heating schedule over winter to keep a home consistently cozy. HVAC technician Josh shares, 'On average, in winter weather, most furnaces or boilers will cycle on and off for eight to 12 hours per day. That's assuming daytime temps around 35-45°F (1 to 7°C) and nights in the 20s.
Typically, a furnace can run for several hours without interruption, but this isn't recommended for long-term efficiency or system health. If your furnace runs continuously, it could indicate that your home is losing heat faster than the furnace can produce it, which may be due to poor insulation or air leaks.
Normal Heating Cycle Example
In moderate weather, your furnace might cycle every 10–15 minutes. In winter, with freezing climate conditions, it's common for a furnace cycle to last closer to 20 minutes. If you notice your furnace shuts off after only a few minutes and then turns right back on, that's not normal.
The cheapest temperature to keep your house in winter is 68°F (20∘C20 raised to the composed with power C𝟐𝟎∘𝐂) while you are home, and lowering it to 61°F–65°F when you are away or sleeping, according to the Department of Energy. Setting your thermostat back 7°–10°F for 8 hours can save up to 10% a year on heating costs.
These policy recommendations are aligned with many of the goals identified in the 2022 California Extreme Heat Action Plan (EHAP). The state should consider a general maximum safe indoor air temperature of 82 degrees Fahrenheit (27.8 degrees Celsius) for residential dwelling units.
While it may be tempting to save a few bucks on your heating bill at times, a cold snap is not the time to set back the thermostat if you have pipes that are at risk of freezing. Leave the heat on if you plan to be away during cold weather. Set the thermostat to a temperature no lower than 55° F.
In most homes, Heating and Cooling (HVAC) systems drive the highest energy costs, accounting for nearly 40% to 50% of your total electricity bill. Following these, the appliances that run up your bill the most include water heaters, refrigerators, and laundry machines.
For most customers, we recommend turning on your furnace when the weather is consistently below 18° Celsius, which usually happens to be around the end of September, or early October. Some homeowners try to put off turning on their furnace as long as they can to save money, which is okay if you're healthy adults.
Typically, a properly sized furnace will run for about 10–15 minutes per cycle during colder months. If your furnace turns on every few minutes, it may be short cycling, which can indicate issues such as a clogged filter, blocked vents, or an oversized unit.
Turning off your furnace completely will disrupt the flow of heat and make your system work harder over time. Instead of helping to improve energy efficiency, it often leads to wider temperature swings and unnecessary strain during the next heating session.
5 Warning Signs It's Time for Furnace Replacement
While we know that water freezes at 32 degrees Fahrenheit, keep in mind that indoor pipes are somewhat protected from the extreme outdoor weather. Without a heat source, pipes may take as little as 3 hours to freeze at 20 degrees Fahrenheit or lower.
It's such a simple thing, leaving a single faucet dripping, but it can prevent so many complications later on. How much value does one dripping faucet have? A lot, if it keeps your home's water pipes from bursting during frigid weather.
At 50°F, water pipes are generally safe from freezing since freezing occurs at 32°F. However, pipes near exterior walls or uninsulated areas can still be vulnerable if temperatures drop suddenly.
Because they do not use standard grid electricity or conventional electric and gas furnaces, the Amish heat their homes using off-grid, self-reliant methods. The most common systems include wood- or coal-burning stoves, propane and kerosene heaters, and natural airflow home designs.
Things that devalue a house the most fall into two categories: unchangeable location issues and costly structural or legal defects. While cosmetic updates can be easily fixed, severe devaluation is driven by factors that shrink your buyer pool or require massive investments to correct.
Whether 63°F (17.2∘𝐶) is too cold depends heavily on who is in the house. While it is generally safe for your home's structure and perfectly fine for healthy adults who are active or sleeping, it is below recommended safety thresholds for vulnerable populations.
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.
Thermostat Operation
You can easily save energy in the winter by setting the thermostat to around 68°F to 70°F while you're awake and setting it lower while you're asleep or away from home.
No, it is generally not cheaper to leave your heating on low all day. According to the U.S. Department of Energy, maintaining a constant temperature results in continuous heat loss, causing your system to consume more overall energy.