Every summer, households across Canada see the same spike, temperatures climb, air conditioners kick in, and energy bills follow. Over 60% of a home’s energy use typically goes toward heating and cooling, according to Natural Resources Canada. But staying cool doesn’t have to mean spending more.
A lot of comfort (and cost savings) comes down to something simple: how you set your thermostat. The right temperature during the day can keep your home comfortable without draining energy, while nighttime settings can improve sleep and reduce strain on your cooling system.
If you’re constantly adjusting your thermostat or wondering what the “ideal” setting is, this guide is for you. We’ll break down the best thermostat settings for both day and night and explain how smart thermostats like the Carrier Smart Thermostat can make your life easier. We’ll also share practical tips for getting the most out of your cooling system this summer.
Optimal Daytime Thermostat Settings
At Home
For a balance between comfort and energy savings, set your thermostat to 24°C to 26°C (75°F to 78°F) during the day when you’re at home. This range is recommended by energy experts and aligns with guidelines from Carrier.
Away From Home
When the house is unoccupied, increase the temperature to 29°C to 31°C (84°F to 88°F). This adjustment reduces energy consumption without compromising comfort upon return, as modern air conditioning systems can quickly restore desired temperatures.
Optimal Nighttime Thermostat Settings
During the night, especially while sleeping, it’s advisable to lower the thermostat to 20°C to 22°C (68°F to 72°F). Cooler temperatures can enhance sleep quality and reduce the workload on your cooling system during the cooler nighttime hours.
Quick Reference Table: Recommended Thermostat Settings
| Time of Day | Occupancy Status | Recommended Setting (°C/°F) |
| Daytime | At Home | 24–26°C / 75–78°F |
| Daytime | Away | 29–31°C / 84–88°F |
| Nighttime | Sleeping | 20–22°C / 68–72°F |
The Role Of Smart Thermostats
Smart thermostats, like the Carrier Smart Thermostat, offer advanced features that adapt to your lifestyle and preferences:
- Learning Capabilities: They learn your schedule and adjust temperatures accordingly.
- Remote Access: Control your home’s climate from anywhere using a smartphone app.
- Energy Reports: Monitor energy usage and receive suggestions for efficiency improvements.
- Integration: Compatible with other smart home devices for seamless automation.
These features contribute to significant energy savings and enhanced comfort.
Tips For Maximizing Cooling Efficiency
Setting the right thermostat temperature is just the beginning. If your home isn’t optimized to retain cool air and block out heat, your HVAC system has to work twice as hard.
This will lead to higher energy bills and unnecessary strain on your equipment. Below are some expert-backed strategies that help improve your cooling performance without increasing your energy consumption:
Use Ceiling Fans Strategically
Ceiling fans don’t lower the room’s temperature, but they help you feel cooler by improving air circulation. Running a ceiling fan while the air conditioner is on allows you to raise your thermostat setting by up to 4°C (7°F) without sacrificing comfort. Make sure fans spin counterclockwise in summer to push cool air down.
Close Blinds And Curtains During The Day
Sunlight streaming through windows can raise your home’s internal temperature dramatically, especially in south- and west-facing rooms. To reduce indoor heat gain, close blackout curtains, thermal drapes, or reflective blinds during peak daylight hours.
Seal Air Leaks And Improve Insulation
Drafty doors, leaky window frames, and uninsulated attics are major culprits in temperature loss. Use weatherstripping, caulking, and door sweeps to seal gaps around your home.
Even small leaks can add up and make your AC work harder than it should. Proper insulation, especially in attics and crawlspaces, keeps the cool air inside and the summer heat out.
Replace Filters And Book Routine Maintenance
Clogged air filters block airflow, reduce efficiency and force your HVAC system to work overtime. Change your filters every 1 to 3 months, depending on your system and usage.
It’s also smart to schedule seasonal HVAC tune-ups, where technicians clean coils, check refrigerant levels, and ensure your thermostat is functioning optimally. A well-maintained system runs more efficiently, lasts longer, and uses less energy.
Use A Smart Thermostat Schedule
If you’re using a Carrier Smart Thermostat, take advantage of its 7-day programmable settings. You can schedule higher temperatures during the day when no one’s home, and have the system begin cooling again before you return.
This kind of automation optimizes performance without you having to lift a finger, and it can lead to significant monthly savings.
Limit Heat-Producing Appliances
Avoid using your oven, clothes dryer, or other large heat-producing appliances during the hottest times of the day. Instead, cook outdoors or use smaller appliances like air fryers and microwaves. This keeps your indoor temperature lower and reduces the workload on your cooling system.
About Nor-Can Heating & Air
Nor-Can Heating & Air, based in Edmonton, Alberta, specializes in providing top-tier HVAC solutions, including the installation of Carrier Smart Thermostats. Our team is dedicated to enhancing your home’s comfort and energy efficiency.
With a focus on customer satisfaction and cutting-edge technology, we ensure your HVAC systems operate at peak performance.
Contact us today to learn more about optimizing your home’s climate control.
