Dainichi Heater English Manual Car
. Residential space heaters aren't designed for use in small, confined spaces.
Dainichi Heater English Manual Car Parts
They typically come with warnings to keep flammable objects (i.e. Your upholstery, etc.) 2 feet, 4 feet, or even further away from both the front and the back of the unit. Inside a car or truck, that typically isn't an option. So while you might be perfectly fine if you set up a space heater on the floor of your car, you do so at your own risk. The other issue with using a residential space heater is wattage. You'll need to that puts out enough wattage to run the heater, and even then you could run into a situation where your alternator can't keep up with the demand.