Updated
There are currently 2 condos for rent with heating on HotPads in Oklahoma City.
Open the "All filters" tab, select "Condo" under "Property type", then select "Heating" under "Amenities". Select "Save search" to get an alert when a new match comes on the market in Oklahoma City.
It depends on the rental. Heating can come from a furnace, a heat pump, radiators or baseboard heaters, and some rentals include heat in the rent. Check the listing details or ask the landlord about the type of heating and who pays for it.