I need some help with my stove. I have a Lopi Leyden that I just installed in a brand new house. The Stove was used when i bought it but only for 3 months. So, the problem is when i have the stove up to temp and turn the bypass off, after a little while the house starts smelling like creosote, also there are no flames while in secondary burn. Is there something i'm doing wrong? Do I have enough Draft? Or is there a problem with the stove?