Turning Off Your AC When You Leave Could Be Costing You Money, Expert Says
A viral TikTok suggests leaving your air conditioner running while you’re away from home can actually save energy and money – a counterintuitive claim gaining traction as summer temperatures soar. HVAC technician Angel, known as @dymondac on TikTok, recently shared a video advising viewers against completely switching off their AC units when leaving for extended periods. His reasoning: restarting a completely shut-off AC requires a surge of energy as the system works to cool down an already heated home.This advice challenges conventional wisdom about energy conservation, particularly as households grapple with rising utility costs. The principle hinges on the idea that maintaining a slightly higher, consistent temperature is more efficient than allowing a home to overheat and then demanding the AC work overtime to restore agreeable conditions. The potential savings are meaningful for anyone facing high energy bills, and the advice is particularly relevant as more people invest in smart home technology to optimize energy usage.
angel explained in his video that leaving the AC on at a higher temperature is still the energy-saving answer, even for those gone for nine hours or more. He further recommended utilizing smart thermostats, like Nest, to schedule temperature adjustments for optimal efficiency.
For even greater savings, upgrading to a highly efficient heat pump – which transfers heat rather than generating it – can significantly reduce energy consumption. Brands like Mitsubishi offer options, including cost-effective mini-split systems designed to target specific rooms or zones.
The advice has sparked debate online, but angel remained firm in his advice. Those interested in further energy-saving tips can subscribe to The Cool Down’s free newsletter.