Can You Turn on the AC While Using the Heater?

[Savannah]

In fact, during winter when using the heater, drivers do not need to turn on the A/C switch. The A/C button is essentially the compressor switch for the cold air conditioning system. The specific reasons are as follows: 1. Heat Circulation The warm air is generated by the engine's heat and delivered into the car through the air conditioning system, creating a heat circulation inside the vehicle to raise the internal temperature. 2. Fuel Consumption Turning on the A/C switch while using the heater will cause the compressor to operate, which not only fails to improve the heating effect but also increases fuel consumption, thereby raising costs.