Eden Pure Heater; Do they put any more than 3412 BTU per Kwatt?

I asked a cross-question more or less coving?
Answers:    I have see ads for the so-called "super efficient" electric heaters. Bull. Electric fry output depends directly on the electrical input, there is no "efficiency" factor to contend near.

You get 3412 btu per KiloWattHour (some sources vote 3413 btu/kwhr). This is all you can go and get. It doesn't matter if it is unscrew wire coils, grease filled, clay or any other type of heater, you receive 3412 btu/kwhr. Some heaters will heat instantly (open lead coils) and some take a long time (oil filled) but they both put like amount of heat into the room. The grease filled will be slower to start radiating warmth into the room but then continues to do so after the power is turned rotten. There is no free lunch.