How can I heat my car without heat?
Start Your Vehicle Early Even if your car doesn't have heat, if you start up your car a solid 10 to 15 minutes before you plan on getting in, the engine will add heat under the hood and with the fan turned on it will warm up the inside of the vehicle by a few degrees.
Start the engine and set the heater temperature control inside the car to high and the blower motor fan on low. This allows the coolant to reach operating temperature faster by not removing heat from coolant through the heater core.
In short, cigarette lighter heaters can produce heat, but not much and never in lieu of a traditional car heater. That makes them better suited for very simple things like defrosting the windshield or warming up hands. Cigarette lighter heaters are too weak to stand in for a standard heating system.
Yes, but unless the car has been running, you won't get any hot air. Eventually it will cool off, you only get heat from an energy source. If the engine doesn't run, it won't produce any heat. Does turning off heat in a car save gas?
If you're in a hurry and just want an answer to the above question, it's no. You no longer need to warm up your car in winter — for your car's sake — unless it's old enough to have a carburetor (unlikely unless it's at least 30 years old), or it's electric or a plug-in hybrid.