Hello everyone, I’m very new to the pellet stove life. I’m having an issue with the VG5790. It starts up fine and gets a pretty big flame but not long after startup the flame starts to die down. The flame will Fluctuate for a time and then inevitably it will just go out. I get a lot of soot all over the glass after only running for maybe 2hrs. We did install the outside air intake, hoping that would help but didn’t make a difference! Please help I’m new and have no idea what to do!