I was told there is a log you can buy at Lowe's or Home Depot, that you burn in your wood stove and it will clean the stove pipe of all creosote. My question is, is this true and if it is, can it harm your chimney pipe? Should I look into doing this once a year? The person who told me about this couldn't remember the name of the product, but before I look into it, I wanted to get some opinions. My pipe has just been cleaned so I don't need it now but was thinking about the future.