13 Ways to Save on Cooling Costs

TL;DR

This article outlines practical home habits and system adjustments that can help reduce air conditioning workload and support more efficient cooling during warmer months.

Key insights

• Thermostat behaviour directly affects cooling demand
• Proper airflow is essential for system efficiency and comfort
• Preventing cooled air from escaping reduces strain on cooling equipment

Tips to Help Manage Air Conditioning Use During Warmer Months

1. Thermostat management

Smart thermostats that learn household patterns can automatically adjust indoor temperatures based on occupancy and usage. Reviewing energy use data and following system recommendations may help limit unnecessary cooling.

2. Use fans to support airflow

Ceiling and portable fans help distribute air more evenly throughout a room. Moving air can make a room feel cooler, allowing higher thermostat setpoints without reducing perceived comfort.

3. Reduce internal heat sources

Turning off unused lights and choosing LED or fluorescent bulbs reduces indoor heat gain and lowers the amount of work required by an air conditioner.

4. Improve attic insulation

Adequate insulation slows heat transfer from outdoors into the home. In summer, this helps retain cooled air and reduces overall cooling demand.

5. Manage solar heat gain

Closing curtains or blinds during sunny periods helps limit heat buildup inside the home, particularly in south and west facing rooms.

6. Limit heat producing cooking methods

Using microwaves, barbecues, or takeout instead of ovens can reduce additional indoor heat during hot weather.

7. Seal windows and skylights

Inspect windows and skylights for air leaks, damaged seals, or worn weatherstripping. Proper sealing helps keep conditioned air inside the home.

8. Use exhaust ventilation

Exhaust fans in bathrooms and range hoods in kitchens remove heat and humidity at the source, reducing the cooling load placed on the system.

9. Add outdoor shading

Trees and tall vegetation planted near the home provide natural shade over time and help reduce direct sunlight exposure.

10. Install awnings

Awnings over windows reduce solar heat gain and help stabilise indoor temperatures, easing the workload on the air conditioner.

11. Keep vents open

Closing vents does not reduce the amount of air an air conditioning system produces. Restricted airflow increases system pressure, raises energy use, and can negatively affect performance and equipment lifespan.

12. Avoid airflow obstructions

Furniture or objects blocking supply or return vents limit air distribution. Clear airflow supports consistent cooling and efficient system operation.

13. Ensure proper system sizing

Cooling load refers to the amount of cooling required to maintain comfortable indoor conditions. Systems that are too large may cycle frequently and fail to dehumidify effectively, while undersized systems may struggle during peak heat. A professional cooling load assessment helps determine the correct system size for a home.