I agree that generators are dangerous, and shouldn't be run as you sleep. I missed where the incident that killed 5 people was a generator issue. I have a generator, and do consider it more dangerous than a heater because it burns a lot more fuel an creates significantly more fumes. I will continue to look for an incident. I will consider any blue flame heater, since they all work the same way. Good point with the oven and stovetop. To me, it's all about what level of risk you are willing to assume with your family, wife, kids, grandkids. I have driven several hundred thousand miles without an accident. I still choose to wear my seatbelt. Mr. Buddy does produce a measurable amount of CO. The response to CO varies with many factors, an is cumulative. I'm really busy this week, but I look forward to the research project.