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What Temperature to Leave a Vacant House in Summer in Arizona

When it comes to leaving a vacant house during the scorching summer months in Arizona, deciding on the appropriate temperature setting can be a bit of a dilemma. On one hand, you want to conserve energy and save money on your utility bills. On the other hand, you don’t want to return to a house that feels like a sauna. So, what temperature should you leave your vacant house at in summer? Let’s delve into this topic and answer some frequently asked questions.


1. What is the recommended temperature to set when leaving a vacant house in summer in Arizona?
It is generally recommended to set the thermostat between 80-85 degrees Fahrenheit. This temperature range allows for energy conservation while preventing the house from becoming too hot.

2. Why is it important to set a temperature rather than turning off the AC completely?
Turning off the AC completely can result in excessive heat buildup, leading to potential damage to furniture, electronics, and even the structure of the house.

3. Can I set the temperature even higher to save more energy?
While setting the temperature higher may save more energy, it can also lead to increased humidity levels, which can cause mold growth and damage to certain materials in the house.

4. Are there any exceptions to the recommended temperature range?
If you have any delicate items, such as artwork or musical instruments, it is best to consult with professionals to determine the ideal temperature and humidity levels for their preservation.

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5. How can I further conserve energy while away?
Consider using window coverings to block out direct sunlight, ensuring that all doors and windows are properly sealed, and using programmable thermostats to adjust temperatures based on the time of day.

6. Will setting the temperature too low before leaving help cool down the house faster?
No, setting the temperature too low will not cool down the house faster. The AC unit works at a consistent rate, regardless of the temperature setting.

7. Should I turn off the ceiling fans when leaving?
It is recommended to leave the ceiling fans on a low setting to help circulate the air and maintain a consistent temperature throughout the house.

8. Can I leave the AC on a higher setting during nighttime and lower during the day?
Yes, you can adjust the temperature based on your needs, as long as it remains within the recommended range. However, it is generally advised to maintain a consistent temperature for energy efficiency.

9. Will leaving the thermostat at a higher temperature cause the AC unit to work harder when I return?
No, the AC unit will not have to work harder to cool down the house when you return if you have kept the temperature within the recommended range. It will simply operate as usual to reach the desired temperature.

10. Should I consider investing in a smart thermostat for a vacant house?
A smart thermostat can be a great investment for a vacant house as it allows you to remotely control and monitor the temperature, ensuring optimum energy conservation.

11. Can I hire professionals to periodically check the house while I’m away?
Yes, hiring professionals to check on the house periodically can help identify any issues or maintenance needs and ensure the temperature is being maintained as desired.

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In conclusion, setting the thermostat between 80-85 degrees Fahrenheit is generally recommended for a vacant house in summer in Arizona. This temperature range allows for energy conservation while preventing excessive heat buildup. However, it is important to consider the specific needs of your house and any delicate items within it. By following these guidelines and considering additional energy-saving measures, you can ensure your vacant house remains in good condition while you’re away.