Should the Recirculation Mode Be Turned On When Using the Heater?

[DiMorgan]

Turning on the recirculation mode when using the heater helps prevent the dissipation of warm air and reduces heat loss. The fresh air mode, on the other hand, draws air from outside the vehicle into the cabin, meaning the air coming out of the vents originates from outside, creating a connected environment between the inside and outside of the vehicle. In contrast, the recirculation mode isolates the car's interior from the outside, and the air blown from the vents is recirculated within the cabin. Recirculation Mode: As the name suggests, it circulates the air inside the vehicle with doors and windows closed, heating only the recirculated cabin air. This results in faster heating and improved fuel efficiency. Fresh Air Mode: This mode draws outside air into the cabin while expelling interior air, maintaining fresh air inside the vehicle. In winter, when outside temperatures are low, using the fresh air mode continuously introduces cold air, hindering the cabin's ability to warm up.