Recent studies have found that this information is entirely false and propaganda by the gas companies. It releases huge amounts of quite toxic stuff every second it is lit. More closely aligned with everyone in the house breathing second hand smoke from cigarettes continuously while it is being used. It has been all over the news these past few months.
I mean he had read the recently released novel and started asking around for someone to pay for him to make it into a movie. So maybe you are making a “clever” quip about how he must not have read the ending to get it that wrong but that’s not how your message sounded with that wording.