EatenByLimestone said:
Electric resistance is electric resistance. For a given input you will only get so much output. For a standard 1500 amps IIRC, you will get 5100 BTU/hr no matter what you cover the heater in.
Matt
If you're only interested in heating a house your remark is of course true. In fact, pretty much ALL electric power used by a house (whether for lights, running motors, TVs, heaters, etc., but with the exception of outside lights and de-icing heaters) ends up heating the house.
On the other hand, if the primary goal is to keep the occupants of the house comfortable amidst wide fluctuations in outside air temperatures and solar fluxes, it pays to start distinguishing between different types of heat sources (radiant, convective, conductive) and, in particular, about the distribution, direction and speed of the various heat flows throughout the house.
This is where electric heaters, in general, excel and where different forms of electric heat can make a huge difference. I could go into a long discussion of how different areas in the home and/or different activities of the occupants at different times of the day/night cycle benefit from radiant versus convective versus conductive types of heat but I suspect that most of us must have been born in a house

and will have spent sufficient time indoors to know the answers already.
Nonetheless, I often read on hearth.com how more than a few of us are quite content to bring the entire home up to, let's say, 80 degrees F. Certainly, this is better than living in the cold. When compared to our indoor lighting choices, however, few would be happy to simply put one big 500 W light bulb in every room. Again, this is better than living in the dark. Nonetheless, we all seem to know exactly how we want our rooms and passageway lighted for maximum utility, comfort and ambiance.
Although some of the more ornamental lamps might actually be quite expensive and not very efficient in terms of lighting a room, one rarely hears anyone call that a waste of money. So why be so hard on someone spending extra money on a nice looking Amish mantle or whatever else the more ornamental heaters might be called?
I agree that some of the earlier examples of "electric fireplaces" are just as ugly as the earliest examples of fake flowers and plants. There was a time, long ago, that no self-respecting household would allow such crude, fake floral pieces, let alone Xmas trees.... Today, however, one would be hard-pressed to find a US home that does not have any of these artifical floral ornaments somewhere. Besides the fact that the price is right, many of these fake flowers, plants or even small trees have become so convincingly real-looking that it may at times be wise to add a little sign saying: " please don't water !"
My prediction is that within a decade or two, some fake electric fireplaces will have become so convincingly real (think holographic techniques, etc) that one might be tempted to try and light a candle by holding it in the "flames".
Henk