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30 years ago, most houses had a thermostat with two settings:
How LOW the room temperature will go before the HEATER kicks on.
How HIGH the room temperature will go before the A/C kicks on.
Yes, you set a temperature range.
There were two slider adjustments to limit "how warm" and "how cool"...
ac 2 temperature setpoints
ac controls
cabin heater coming on when only cooling desired
hvac
hvac has no heater off button
hvac has no vent mode
hvac missing controls
temperaturerange
ventilation