We are looking into buying the Harman DVC500 and are really excited about it. It sounds like a really good fit for our farm house. But we live in Wisconsin and the price of the coal here is about $350/ton (rice coal). We can get wood pellets in a similar price range, but what if the prices change drastically and wood pellets are now 1/2 to 1/4 of the cost of coal? Can we use wood pellets in the DVC500? I know the official answer is NO, but what would happen? It is not safe? Does it just not work very well? I'm really curious to hear your thoughts, off the record, so to speak.