Thermostat settings by state

Thermostat settings in Oklahoma

By Ismail Farooq · Updated 2026-10-30

How most homes heat: Natural gas furnaces and heat pumps, with central AC in nearly every home.

Oklahoma has long, hot summers, cold snaps in winter, and severe storms in spring. Cooling is the biggest energy use, and both main utilities have run programs that pay for enrolling a smart thermostat in peak-day demand response.

Winter cold snaps can push heat pumps onto aux heat. If you have a gas furnace and heat pump together (dual fuel), set the compressor lockout so the furnace takes over in the coldest weather.

Climate zones in Oklahoma

Zones follow county lines on the 2021 IECC map, and some counties changed zone between code editions. DOE’s Building America climate zone map lists every county.

Starting settings

• Everyday setpoints: about 68 °F in winter and 78 °F in summer while you’re home, set back while you sleep or are out (DOE’s guidance).
• Gas, oil or propane furnace or boiler: setbacks of 7 to 10 °F are fine; use the thermostat’s early-start feature so the house is warm on time.
• Heat pump: keep winter setbacks small (2 to 4 °F) so a cold morning doesn’t bring on aux heat.
• Humid summers: use fan Auto, not On, and turn on the thermostat’s dehumidify or overcool setting if the house feels damp. Keep indoor humidity under about 60%.
• Dry air: a higher cooling setpoint still feels comfortable, and winter air gets very dry. A whole-house humidifier wired to the thermostat should aim for about 30–40%, lower in very cold weather.

Heat pump lockouts for Oklahoma

If you have a heat pump, these are starting points for the outdoor temperatures that control backup heat. Your installer’s balance point is better if you have it.

Rebates

Many utilities give rebates or bill credits for smart thermostats, sometimes in return for joining a peak-day program. Programs change often, so check your electric and gas utility’s website, or search by ZIP code in the ENERGY STAR rebate finder.