I just got a rooster punched tin warmer and I put one of my soy tarts in it and it smells like it is BURNING the tart. I took the top off and it smells down inside there, like burning and not so much the tart which is all melted. I am wondering if anyone has one of these and if this is normal for the first time plugging it in. I have never used this kind, so not sure. I still have it plugged in, hoping that is the case.