Does Turning the Heat On and Off Cost More? Energy-Saving Tips for Colorado Residents

Colorado winters can swing from bright, mild afternoons to sudden snow and deep freezes, which is why many homeowners and business owners ask the same question: does turning heat on and off cost more? In most cases, the answer depends on how you do it. Completely shutting your heat off and then forcing your system to catch up can increase energy use and equipment wear. A smarter approach is usually to lower the thermostat when you are away or asleep, then bring it back up when needed.

At Alloy Heating and Cooling, we help Colorado homeowners and small businesses find the right balance between comfort and efficiency. Below, we explain how heating systems really work, what saves money in our climate, and when turning your heat down is better than leaving it steady.

Does Turning Heat On and Off Cost More?

Usually, yes if you are turning the system completely off for long periods and then asking it to reheat a cold building. Your furnace or heat pump must run longer to recover the lost heat, and that recovery period can feel expensive, especially after a cold Colorado night.

That said, it is not the same as lowering your thermostat. In most homes and commercial spaces, reducing the temperature a few degrees while you are away or sleeping lowers energy use without creating the strain that comes from a full shutoff.

How Heating Systems Use Energy

Most Colorado properties use either a forced-air furnace or a heat pump. These systems cycle on and off to maintain the temperature you set at the thermostat. When the indoor temperature drops below the set point, the system runs. Once the target temperature is reached, it shuts off.

That normal cycling is different from manually turning the heat off for hours at a time. For example, if a Highlands Ranch homeowner keeps the thermostat at 68 degrees, the furnace only runs as needed. If that same home is allowed to drift down to 55 degrees during the workday, the furnace has to work harder later to warm everything back up.

Why Full Shutoffs Can Increase Demand

When a house, office, or retail space gets too cold, heating recovery takes time. The system may run longer, and depending on the equipment, it may do so less efficiently during that recovery period. Older systems can be especially affected, which is common in many established neighborhoods across Denver, Aurora, Littleton, and Englewood.

Example: A family in Littleton turns their thermostat off every weekday before leaving for work. By the time they return, the home is chilly, the floors feel cold, and the furnace has to run for a long stretch to restore comfort. They may save a little while the system is off, but the long recovery time can offset some of those savings and add wear to the equipment.

The Better Strategy: Lower the Thermostat

For most homes and businesses, the most efficient option is to set the thermostat back 7 to 10 degrees when the building is empty or everyone is asleep. According to the U.S. Department of Energy, this can save up to 10% a year on heating bills.

Example: A Parker homeowner uses a smart thermostat to lower the temperature during the workday and raise it shortly before the family returns. The house stays protected from extreme temperature swings, the furnace runs more efficiently, and the family still comes home to comfort.

Best Heating Practices for Colorado Homes and Small Businesses

Use a Thermostat Schedule

A good heating schedule helps control costs without creating comfort problems. For many Colorado households, 68 degrees while home and awake is a practical starting point, with a lower setting overnight and during the day when no one is there.

• Set a comfortable base temperature for occupied hours.
• Lower the temperature 7 to 10 degrees when sleeping or away.
• Use programmable or smart thermostat settings for weekdays, weekends, and holidays.

Example: A Centennial family keeps the house at 68 degrees during the day and 62 degrees at night. Over a full heating season, they noticed lower bills than when they used one constant temperature all winter.

Do Not Ignore Air Leaks and Insulation

Even the best thermostat strategy cannot make up for heat loss. In Colorado, drafts and poor insulation are common causes of high heating bills, especially in older homes and light commercial buildings.

• Seal gaps around windows and doors with caulk or weatherstripping.
• Insulate attics, basements, and crawl spaces to slow heat loss.
• Check fireplace dampers so warm air is not escaping up the chimney.

Example: A Roxborough Park homeowner added attic insulation and sealed drafty windows. The home held heat better, the furnace cycled less often, and winter utility costs dropped noticeably.

Use Smart Thermostats for More Control

Smart thermostats make it easier to save energy without guessing. Many models learn your schedule, let you adjust settings from your phone, and help you avoid heating an empty building.

• Program set-backs for nights, weekends, and off-hours.
• Monitor usage trends to spot spikes or unusual runtime.
• Set temperature alerts to help prevent frozen pipes during severe cold.

Example: A small office in Boulder installed smart thermostats and added overnight setbacks. Their heating costs dropped, and employees still arrived to a comfortable building each morning.

Myths About Turning the Heat Off

Myth: Leaving the Heat On All Day Is Cheaper

Many people assume a steady temperature always saves money, but that is not usually true. If no one is home or the building is closed, you are paying to keep that space warmer than necessary. A setback schedule is often the better choice.

Example: A Lakewood couple who used to keep their thermostat at 72 degrees all day switched to a lower daytime setting. Their winter bill dropped by about $40 in peak months.

Myth: Turning the Heat Down Means Wasting More Energy Later

It is true that reheating a cold space takes energy. But in most cases, the energy saved while the temperature is lower outweighs the energy used during recovery. The key is to lower the thermostat, not shut the system off completely for long periods.

There is one important exception. In extreme Colorado cold, turning the heat too low or off can create a frozen pipe risk, especially in mountain communities and other exposed areas like Evergreen, Palmer Lake, and Monument. In those conditions, keep the home above freezing and use a safe setback instead of a full shutdown.

Other Common Heating Misconceptions

• Closing vents in unused rooms saves energy. For most forced-air systems, this can cause airflow problems and reduce efficiency.
• Space heaters are always cheaper than central heat. They can help in one room, but they are not usually the best option for heating an entire home or office.
• A bigger furnace is better. Oversized systems often short-cycle, which can waste energy and create uneven comfort.

Colorado-Specific Ways to Lower Heating Bills

Take Advantage of Sunshine

Colorado gets plenty of sun, and that can help with winter comfort. Use it when you can.

• Open blinds and curtains on sunny south-facing windows during the day.
• Close window coverings at night to hold in warmth.
• Consider thermal curtains in draftier rooms or older homes.

Example: In Cherry Hills Village, a homeowner noticed the living room stayed warmer on sunny afternoons after opening the blinds, which let them keep the thermostat lower during the day.

Schedule Routine HVAC Maintenance

A well-maintained heating system uses less energy and is less likely to fail during a cold snap. This matters for homes, office spaces, retail stores, and other commercial properties across the Denver metro area.

• Replace air filters every 1 to 3 months during heating season.
• Schedule annual tune-ups to check safety, airflow, and system performance.
• Fix small issues early before they become expensive breakdowns.

We often see heating bills spike because of clogged filters, weak airflow, or a furnace that has not been serviced in years. A simple maintenance visit can improve efficiency, reduce strain on the system, and help it last longer.

Look Into Colorado Energy Assistance Programs

If heating bills are difficult to manage, Colorado offers assistance options for qualifying residents and some property owners:

• LEAP, or Low-Income Energy Assistance Program, helps eligible households with winter heating costs.
• Weatherization Assistance Program may help with insulation, sealing, and energy-related repairs.
• Utility rebates may be available for smart thermostats, high-efficiency equipment, and insulation upgrades.

These programs can be helpful for homeowners in places like Brighton, Erie, and Federal Heights, as well as for families trying to stretch their winter budget.

When to Lower the Heat, and When Not To

Lowering the heat makes sense when you are away for the day, asleep, or closing up a business after hours. Turning it completely off is usually not recommended unless the space is being fully winterized and protected from freezing.

For homes, a reasonable setback helps save money while protecting plumbing and keeping the house comfortable. For commercial spaces, the right schedule depends on occupancy, building size, insulation, and equipment type. A small office may benefit from an overnight setback, while a large building with sensitive plumbing or inventory may need a tighter temperature range.

If you are unsure what is best for your property, a local HVAC technician can help you create a safe and cost-effective schedule.

Conclusion: Smart Heating Habits Save Money

So, does turning heat on and off cost more? In most Colorado homes and businesses, yes if that means fully shutting the system off and letting the building get very cold before reheating. The better approach is to use thermostat setbacks, keep the building insulated, maintain your HVAC system, and avoid extreme temperature swings.

With the right strategy, you can stay comfortable through Colorado winters without overspending on energy.

Need help improving heating efficiency? Contact Alloy Heating and Cooling for expert HVAC repair, maintenance, installation, and indoor comfort solutions throughout Greenwood Village, Englewood, Littleton, Lone Tree, Highlands Ranch, Parker, and nearby Colorado communities.

Frequently Asked Questions

Frequently Asked Questions