I'm a new Tarm Solo Plus 40 owner and this is my first post but I've been reading posts on the site for well over a year so thank you to all for the valuable information. The question I have is whether or not i should burn Hemlock, White Pine and some Spruce. In the 6 years we've been in our home I have cleared a considerable amount of trees from the lot. Unfortunately, it's mostly softwood but I've been told by a number of friends that I should be fine using this wood in combination with the maple, cherry and birch firewood i have purchased. My plan is to use the softwood in the spring and fall (primarily) and then mix it with the hardwood in the winter. Do I need to worry about the pitch (primarily from the Pine) building up in the firebox, heat exchange tubes or chimney? ( I have an Excel 6" chimney system). I have about 5 cord of hardwood that is well seasoned (bought it from a friend who had it stored in a garage for 2 + years) so i'm hoping the combination of that with the softwood will provide an acceptable moisture content. (this may be a bad assumption) I also own an antique Glenwood Model 590 cookstove that's in our kitchen and i used that a lot last year. I wouldn't burn any of the softwood in that but from what i've read (and been told) the gasification of the wood eliminates the concerns usually associated with burning these softwoods. I do understand that i'll be pulling a lot less btu's from the softwood but it's free btu's so if i can use i will. Thanks for the help.