If you're looking for a simple way to reduce your monthly energy costs, one of the easiest changes you can make is adjusting your thermostat. In Arizona, where air conditioning often runs for much of the year, even small temperature adjustments can have a noticeable impact on your utility bill.
A common rule of thumb in the HVAC industry is that every 1-degree adjustment to your thermostat can result in approximately a 1% change in your cooling costs. While the exact savings depend on factors such as your home's insulation, HVAC efficiency, outdoor temperatures, and energy rates, this guideline provides a useful benchmark for understanding how thermostat settings affect your monthly expenses.
The 1 Degree = 1% Rule
Let's say your summer electric bill averages $300 per month. If you typically keep your thermostat set at 72 degrees and increase it to 75 degrees, you could potentially reduce your cooling costs by about 3%, saving roughly $9 per month. While that may not sound significant at first, those savings add up over the course of a long Arizona cooling season.
For example:
- Increase thermostat from 72° to 75° = approximately 3% savings
- Increase thermostat from 72° to 78° = approximately 6% savings
- Increase thermostat from 70° to 78° = approximately 8% savings
Over six months of heavy air conditioning use, those small adjustments could save homeowners anywhere from $50 to several hundred dollars depending on their energy consumption.
Why Thermostat Settings Matter So Much in Arizona
Here in the Prescott area and throughout Arizona, air conditioning is often the largest contributor to a home's energy bill during the summer. When outdoor temperatures climb into the 90s and even triple digits, your HVAC system must work harder and run longer to maintain cooler indoor temperatures.
The lower you set your thermostat, the greater the difference between indoor and outdoor temperatures. This forces your air conditioner to operate more frequently, increasing electricity usage and placing additional wear and tear on the system.
By raising your thermostat a few degrees, you reduce the workload on your air conditioner and allow it to cycle less frequently, helping lower both energy costs and system strain.
Finding the Right Balance Between Comfort and Savings
Of course, no one wants to be uncomfortable just to save a few dollars. The key is finding a temperature that balances comfort with efficiency.
The U.S. Department of Energy generally recommends setting your thermostat to around 78 degrees when you're home and awake during the summer. Many homeowners find that ceiling fans, portable fans, and proper humidity control make this temperature surprisingly comfortable.
You can also consider:
- Setting the thermostat a few degrees higher while you're away.
- Raising the temperature overnight if cooler outdoor air is available.
- Using programmable or smart thermostats to automatically adjust settings throughout the day.
- Closing blinds and curtains during peak sunlight hours.
- Sealing air leaks around windows and doors.
These strategies can help maximize savings without sacrificing comfort.
Smart Thermostats Can Increase Savings
One of the best investments homeowners can make is upgrading to a smart thermostat. These devices learn your schedule and automatically adjust temperatures based on occupancy and usage patterns.
Rather than cooling an empty home all day, a smart thermostat can raise the temperature while you're at work and begin cooling shortly before you return. Many homeowners see noticeable energy savings simply by eliminating unnecessary runtime.
Most smart thermostats also provide energy reports, remote control through mobile apps, and reminders for HVAC maintenance.
Don't Ignore HVAC Efficiency
Thermostat settings are only part of the equation. If your air conditioner is struggling due to dirty filters, clogged coils, duct leaks, or aging equipment, your energy bills may remain high regardless of thermostat adjustments.
Regular HVAC maintenance helps ensure your system operates efficiently and delivers maximum cooling with minimum energy consumption. Simple services such as replacing filters, cleaning components, and checking refrigerant levels can improve performance and reduce operating costs.
Let AC Medic Help You Lower Energy Costs
If your energy bills seem unusually high, your HVAC system may need professional attention. At AC Medic, we help homeowners throughout Prescott, Prescott Valley, Chino Valley, Dewey-Humboldt, and the surrounding areas improve comfort and efficiency through expert
HVAC maintenance, repairs, and system upgrades.
Remember, every degree matters. With the general guideline that a 1-degree thermostat adjustment equals about a 1% change in energy costs, making small changes today can lead to meaningful savings throughout Arizona's cooling season.
Contact AC Medic today to schedule
HVAC service and discover additional ways to reduce your utility bills while keeping your home comfortable year-round.
