I had a call today that wanted me to remove two warm morning stoves and install three ventless heaters. I told them of the dangers involved with doing this but their reply was that the guy next door has done it. There are alot of older homes in the towns near me with lower income people that are being convinced that these ventless heaters are the way to go. We have propane companies, lumber yards, Westlakes, and Orshlens selling these to people and they have no idea of the dangers. They replace the old warm mornings or wall heaters and start saving money. Does anyone else see this problem? Its just a matter of time before one of these fail to detect CO and kill someone or a family. I do not sell or install these but some companies near me do. I think they all have a saftey built into them but im not sure.(I hope so)