Does Turning Off Your Air Conditioning Save Money When You're Away?

Living in the southern United States, it's a common practice to close windows, draw shades, and pressurize the house during warm months. Keeping the house sealed and cool can save money in the long run, but it requires a constant effort to ensure all doors and windows remain closed.

The Reality of Leaving the AC On

Whether you're a non-technical owner or a seasoned HVAC professional, the question often arises: “Does leaving the air conditioning on while you're away save money?”

While the drastic summer heat can be unbearable, there's a common misconception about how running your air conditioning while you're away affects your energy bills. To clarify the facts, let's explore this issue and provide some practical advice.

Turning Off the Air Conditioning

I’m not an HVAC tech, but based on my experience and what the seasoned technicians I worked with have said, keeping the air handler unit running isn’t cost-effective if you’re not home. In fact, turning the HVAC system off can save you significant amounts of money in the long run.

Understanding HVAC Operation

When you leave your house, the air conditioning unit isn't just idling. It's still consuming electricity to maintain a certain temperature and operate the air handler. This can be a considerable expense, especially during prolonged periods when the unit is turned on without the necessary cooling load.

Long-Term Energy Savings

To achieve substantial energy savings, turn off your hydrogen vent unit completely when you're away. Although it might feel counterintuitive, the net cost of turning on the air conditioning to a vacant house is higher than just letting it gradually warm up.

Practical Tips for Energy Efficiency

Set Back the Thermostat: Lowering the thermostat a few degrees before you leave can reduce the strain on your HVAC system, although you should still turn it off completely. Use a Programmable Thermostat: A programmable thermostat allows you to set the temperature to switch on only when you return home, ensuring you save energy when you're away. Seal the House: During warmer months, make sure all windows and doors are closed to prevent heat from entering the house, reducing the workload on your air conditioning system. Consider a Smart Thermostat: Advanced smart thermostats can monitor your schedule and adjust the temperature automatically, minimizing energy waste.

Conclusion

So, is it really better to turn off the air conditioning when you're away? Yes, it is. By turning off your HVAC system, you can significantly lower your energy bills, reduce wear and tear on your equipment, and contribute to a more eco-friendly lifestyle.

Remember, a well-sealed home and the appropriate use of your thermostat can make a significant difference in your energy usage. Stay cool and save more with smart habits!