I have recently purchased and addo on furnace and plane on using wood to heat with as main source. Have been looking at stihl cain saws i will be cutting a lot of wood i currently have a craftmans (given to me) with an 18 bar am going to by a used 16 in populan ($40) and going to buy a good one like the 290 or 390 stihl and pro cons or other sugestion thank for the help