Understanding the Cost Difference Between 72°F and 70°F
Yes, setting your air conditioner to 72°F instead of 70°F will make your cooling costs cheaper. While the difference might seem small, every degree you raise your thermostat during Oklahoma's brutal summer months can reduce your cooling costs by approximately 3-5%. Over an entire cooling season, this translates to noticeable savings on your electricity bill. The reason is straightforward: your AC system doesn't have to work as hard or run as long to maintain a 72°F temperature compared to 70°F, especially when outdoor temperatures in Oklahoma regularly exceed 95°F from June through September.
As a licensed HVAC technician, I explain to customers that air conditioning systems operate based on the temperature differential between your desired indoor temperature and the outdoor temperature. The smaller this gap, the less energy your system consumes. When you're fighting against 100°F heat in Edmond or Oklahoma City, asking your system to maintain 70°F means it's working to overcome a 30-degree difference. Setting it to 72°F reduces that gap to 28 degrees, which might not sound significant but requires measurably less compressor run time and electrical consumption.
Real-World Savings in Oklahoma's Climate
Oklahoma's climate presents unique challenges for air conditioning efficiency. With high humidity levels and extended periods of extreme heat, your AC system often runs continuously during peak summer months. The U.S. Department of Energy confirms that for every degree you raise your thermostat above 72°F during summer, you save approximately 1% on your cooling costs. This means choosing 72°F over 70°F could reduce your cooling expenses by 2-3% monthly.
For an average Oklahoma household spending $200-300 monthly on summer cooling, this represents $4-9 in monthly savings, or $25-55 over a typical cooling season. While these numbers might seem modest, they compound over time. Additionally, running your system less aggressively at 72°F instead of 70°F reduces wear on components like the compressor and blower motor, potentially extending your equipment's lifespan and delaying costly repairs.
Additional Factors Affecting Your Savings
Several factors influence how much you'll actually save by adjusting from 70°F to 72°F:
- Home insulation quality: Better-insulated homes retain cool air more effectively, making the temperature difference more impactful
- System efficiency: Newer, high-SEER rated units maximize savings from every degree of adjustment
- Thermostat location: Properly placed thermostats provide accurate readings and prevent short-cycling
- Air filter maintenance: Clean filters allow your system to operate more efficiently at any temperature setting
- Ductwork condition: Sealed, insulated ducts ensure cooled air reaches living spaces effectively
Maximizing Comfort and Efficiency
The good news is that most people find 72°F perfectly comfortable, especially with proper humidity control. At Triple Play Home Services, we help Edmond and Oklahoma City homeowners optimize their systems for both comfort and efficiency. Our NATE-certified technicians can assess whether your current system is operating efficiently enough to achieve maximum savings from thermostat adjustments.
If you're concerned about cooling costs or system performance, our veteran-owned team is available 24/7 to help. We'll evaluate your entire HVAC system to ensure you're getting the best possible efficiency. Call Triple Play Home Services at (405) 474-6723 for expert advice on optimizing your cooling costs this summer.