There are two reasons why you might consider a space heater as an electric car heater: as a replacement for a failing HVAC system or as an alternative to storing your vehicle.
Video about electric car thermal heating – How does electric car heating work?
Some important things to think about before purchasing an electric car heater are whether you want to use a 120-volt or 12-volt heater, whether it is safe to use a portable car heater in your vehicle, and how much wattage you will need to warm up your vehicle. The biggest pitfalls can be: power supply bottlenecks, fire hazards, and heat loss.
Home space heaters are designed to operate on alternating current. In North America, this means they operate on 120V AC. In most cases, the electrical system in a car provides 12V DC, which can fluctuate up or down depending on factors such as the charge level of the battery and the overall load on the system.
When using a home space heater as an electric car heater, connect it to an inverter. An inverter converts direct current from the vehicle's electrical system into the alternating current that the heater needs.
