Why You Shouldn’t Leave Your Air Conditioner On In A Vacant House (and What To Do Instead)

When leaving a house vacant, the question of whether to keep the air conditioner on arises. This decision involves weighing the potential benefits and drawbacks to determine the most suitable course of action. In this comprehensive blog post, we will delve into the pros and cons of leaving the air conditioner on in a vacant house, providing you with the necessary information to make an informed decision.

Pros of Leaving Air Conditioner On

1. Maintain Indoor Air Quality

A running air conditioner helps circulate air, preventing the buildup of stale air and pollutants. This is particularly important in humid climates, where moisture can accumulate and lead to mold growth.

2. Prevent Structural Damage

High temperatures and humidity can cause damage to the house’s structure, including warping of wood, cracking of paint, and deterioration of insulation. An air conditioner helps regulate temperature and humidity, mitigating these risks.

3. Protect Appliances and Electronics

Extreme heat can damage appliances and electronics. By keeping the temperature cool, an air conditioner can extend the lifespan of these valuable items.

Cons of Leaving Air Conditioner On

1. Energy Consumption

An air conditioner consumes electricity, and leaving it on in a vacant house will result in increased energy bills. This can be a significant expense, especially if the house is vacant for an extended period.

2. Potential for Breakdowns

Air conditioners are mechanical devices that can malfunction or break down over time. Leaving them on unattended increases the risk of such incidents, which can lead to costly repairs or even damage to the house.

3. Security Concerns

Leaving an air conditioner running in a vacant house may attract attention, making the property a potential target for break-ins. This is especially concerning if the house is located in a secluded area.

When to Leave Air Conditioner On

Based on the pros and cons discussed, it is generally recommended to leave the air conditioner on in a vacant house if:

• The house is located in a hot and humid climate.
• The house will be vacant for a short period (less than two weeks).
• The cost of energy consumption is not a major concern.

When to Turn Air Conditioner Off

It is generally recommended to turn the air conditioner off in a vacant house if:

• The house is located in a moderate climate.
• The house will be vacant for an extended period (more than two weeks).
• The cost of energy consumption is a major concern.

Additional Considerations

• Set the thermostat higher: To reduce energy consumption, set the thermostat to a higher temperature, around 80-85 degrees Fahrenheit.
• Use a programmable thermostat: This allows you to set the air conditioner to turn on and off at specific times, minimizing energy usage.
• Cover windows: Close curtains or blinds to block out sunlight, which can raise indoor temperatures.
• Open windows slightly: If the weather permits, open windows slightly to allow for airflow and reduce the need for air conditioning.
• Monitor the house remotely: If possible, use a home automation system to monitor the temperature and humidity in the house remotely.

Key Points: Weighing the Evidence

The decision of whether to leave an air conditioner on in a vacant house is not straightforward. By carefully considering the pros and cons discussed in this blog post, you can determine the best course of action based on your individual circumstances. Remember to prioritize energy efficiency, structural integrity, and security when making your decision.

Popular Questions

Q: What temperature should I set the thermostat to when leaving the air conditioner on in a vacant house?
A: Set the thermostat to a higher temperature, around 80-85 degrees Fahrenheit, to reduce energy consumption.

Q: Can I leave the air conditioner on in a vacant house for an extended period?
A: It is not recommended to leave the air conditioner on in a vacant house for more than two weeks, as this can increase the risk of breakdowns and energy waste.

Q: What are the security risks of leaving an air conditioner running in a vacant house?
A: Leaving an air conditioner running in a vacant house may attract attention, making the property a potential target for break-ins. Consider using a home automation system to monitor the house remotely and deter intruders.