I've read some more of these comments. Electricity confuses people! 1500 watts IS the same from one heater to the next. There is a BIG difference in output and efficiency though! A radiant electric heater (with the coils that glow red) gets super hot close to it, but doesn't help heat that big of an area. Oil-filled radiator types also gets too hot to touch, but radiates heat more efficiently and for longer than a radiant one. Plus while the oil-filled part is hot, the electricity can turn off for a while. Then you have combos that use ceramics to try to retain heat. The one for sale uses infrared to heat air that is moved through it, and forces the air out, similar to a gas or oil forced hot air system. Because the air is not super-heated, it doesn't get too hot to touch, and heats up slower, but the forced hot air heats a larger room area. (In my case, my whole kitchen/dining/living room area.) So compared to other 1500 watt heaters, the output in BTUs is greater for the same electrical use.
AND for those who argue about the stated cost to run one: a kilowatt/hour is about 4 1/2 cents. 1500 watts is 1.5 kilowatts , times 24 equals 36 kilo watts per day, times 4.5 cents = $1.62 if you left it on 24 hours per day. That's really simplified, but I think I'm pretty close on the math. I KNOW I've saved close to $100 compared to my heating costs last year over the same time period!