3 minutes read

When to Change Your Thermostat in Fall and Spring

Published by Rebecca Power

The Best Time to Switch Between Heating and Cooling

As the seasons change in Illinois, homeowners often wonder when to switch their thermostat from cooling to heating or the other way around. Changing too soon can waste energy, while waiting too long can leave you uncomfortable. Knowing the right time helps you save money, protect your system, and keep your home at the perfect temperature.

When to Change Thermostat Settings in Fall

As summer winds down and cooler nights arrive, it’s natural to reach for the heat. Your furnace starts heating your home once you no longer need the cooling system. Your furnace takes over efficiently once your cooling system is no longer needed.

If you’re unsure when to change thermostat settings, pay attention to how often your AC or heat kicks on. If your system is running too frequently or struggling to keep up, it may be time to make the switch.

When to Change Thermostat Settings in Spring

When spring arrives and the temperatures rise above 70°F during the day, you’ll likely want to switch back to cooling. To avoid energy waste, keep your windows open on mild days instead of running your AC. Once warmer weather becomes the norm, set your thermostat to cooling mode and enjoy a comfortable home without overworking your system.

Knowing how to change a thermostat is simple: most modern thermostats have a clear switch between “Heat” and “Cool.” Smart thermostats even make automatic adjustments based on outdoor conditions.

How Seasonal Changes Save Money

Switching at the right time isn’t just about comfort; it can also save you money. Using the AC when it’s already cool outside, or turning on the heat too soon, can raise your utility bills for no reason. Adjusting your thermostat only when needed helps cut energy use, lower bills, and reduce wear on your HVAC system.

Regular HVAC maintenance also plays a role in keeping your system efficient. A professional tune-up ensures your furnace or AC is ready for the season ahead.

Stay Comfortable Year-Round with Professional Help

If you’re unsure when or how to adjust your system, Heatmasters can help. Our experts can show you when to change thermostat settings and make sure your system is ready for the shift in seasons. From routine maintenance to emergency repairs, we keep your home comfortable no matter the weather.

Questions? We Can Help. Schedule Your Service!
Our Membership Maintenance

Over 70 Years of Superior Furnace Maintenance in Chicago.

Since 1950, our technicians have been required to train year round to stay at the top of their class, so we can truly be Masters in your home. Our Master Maintenance program offers furnace & AC tune-ups as well as other discounts.

Learn More

QUESTIONS? Call 1-800-432-8464 to speak with a Comfort Consultant NOW!