Two thermostat settings to lower AC bills

Cool Talk with Hartzell's | Your HVAC Questions, Answered! · Sep 21, 2026 · 21m · transcript

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HOST A: It is the third week of May in Kingfisher. The first real heat wave hit. A homeowner calls Hartzell's, frustrated. Their power bill came in 80 dollars higher than last June. The AC seems to be running fine. Same age, same house, same thermostat setting. So what gives? HOST B: 9 times out of 10 it is one of two settings on the thermostat, and the homeowner does not even know those settings exist.

I'm Dave Hartzell at Hartzell's Heat & Air in Kingfisher, Oklahoma. 47 years in the trade, Master HVAC license. On Cool Talk I cover the stuff central Oklahoma homeowners…