My HP50 is about six months old. At about one month in I had to replace the motherboard and display because of a "LOST CONNECTION" error message which caused the stove to stop feeding pellets. After that it sat idle for a very warm summer. i recently started to use the stove again in the Fall, but after a short term of service it returned a smoke alert and stopped feeding again. I contacted the chat line and they suggested I view the auger video which concluded in me being sent a replacement auger motor. i installed the replacement auger motor but the stove still will not feed. I tried to email tech suppot with email which has a two day turnaround for response. I ended up having to recount the history of the stove and the subsequent failure of the replacement auger motor at which point the tech suggested that the motherboard may be the problem and inquired the age of the stove. My reply and follow up email the following week remain unanswered. The stove is inoperable for about a month now as I approach its first full heating season. Online chat with which I had the only success has been ofline and keeps extending thier hiatus. I am very disappointed with my experience with Comfortbilt and I am seriosly considering purchasing a different stove. It will not be a Comfortbilt. David W Marshall