I had my doubts it would work. With fire extinguisher in hand, I turned it on. It smoked, flamed, and I put it out.
The heater was behind a metal bracket inside a special area of the wall that was cut for it. It had two coils that should turn bright orange from heat. It turned on with a "breaker" type switch in front of the device. It hooked into power like you were wiring a power outlet into the wall. From the looks of it, it was put in when the house was built. There is no type of identification on the device.
Hopefully I've described it well enough. Any idea if this is something I can purchase online or at a store?