It is possible that a car can smell like gas when the heater is turned on for a few reasons. One possible reason that this happens could be a leak in the line.
Varnish, or in other words it does not smell like gas, it smells almost burnt
The burnt metal smell in your car could be caused by overheating brakes, a malfunctioning catalytic converter, or an oil leak onto a hot engine component. It is important to have your car inspected by a mechanic to determine the exact cause of the smell and address any potential safety concerns.
rent an ozone generator.
dryer sheets in the heater vents may help
Leaking heater core
A burning smell from a car's brakes means that you are braking very hard or there is a electrical short circuit in the car. Another reason for a burning smell may actually be coming from the car's heater.
Heater core is probally leaking. Should be located under dash on passenger side.
Typical of the heater core leaking. Overheat because of low fluid and pressure. Foggy windshield due to heater core leaking and will smell antifreeze in the car.
A burnt rubber smell in conjunction with a draining car battery could indicate several issues. It might be due to a malfunctioning alternator, which can cause the battery to overcharge and produce heat, leading to a burnt rubber smell from the wiring or insulation. Additionally, a short circuit or damaged wiring could generate heat and the burnt rubber odor while draining the battery. It's advisable to have the car inspected by a professional to diagnose and resolve the issue safely.
if you can smell antifreeze you need to replace the heater core in the vehicle
Most car radios have a fuse on the back where the plugs are. Check the fuse to see if it was blown or smell around the car radio you might catch a burnt smell also