Im sure most of us have seen the ads Miracle electric heater,heating costs have hit rock bottom ,Even bob vila promotes these glorified $10 electric heaters in a $300 Box. The 2 worst offenders are THE Amish fireplace, and the Eden-pure. People who sell these things take advantage of the publics lack of knowledge of heating equipment and how it works and what it costs. 1500W = 3413 BTUs NO MORE NO LESS NO matter what kind of fireplace you put it in,or what kind of box ,no matter how much you charge for it, it will NEVER make more heat than that(outside of running a heat pump). MOst people who buy these already have a cheap space heater ($12-$35 at wal-mart) that does exactly what their new $300 Miracle box is going to do. A testament to the disappointment in these Scam heaters is the number of for sale ads for Only used once ,and mint condition amish fireplace and edenpure heaters,paid $300 will sell for $250 $200 ect in my hometown classifieds.