To be precise, it was said (second hand through Dewey, who apparently heard from the government inspectors) to be "something similar to a radiator."
The Dewey Says quote was "IH has 3rd party proof that the "customer" side just contained a large radiator "
There is also this classic Dewey quote " Dear lapdogs - the arguments are over. New data is in hand. Rossi warmed the place up with the equivalent heat output of twenty 1000 watt space heaters. He made a nice big year round Miami sauna bath. That sole device er.....radiator, on the JM Products side didn't even have to work that hard. A complete and absolute travesty. "