"Air" Heater Control on '61 Vette
Greetings. I'm new to "The Vette Barn" and recently purchased a restored '61 Vette (picture attached). SWEET!! Can anyone please tell me what the "Air" knob on the heater control panel does? I have the original owner's manual, but it doesn't say anything at all about that control. I think that it could allow outside air to enter the cabin, but I'm not sure. Thanks for your help. Larry
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