turnkey4099
Elite Member
I'd go for the stack pipe and flapper. As far as the safety concerns, a child old enough to operate the dozer is old enough to know an exhaust is hot. If not, he'll learn the by experience the first time they touch it. I don't mean to sound harsh but you cannot protect a child from everything and experience is the best way to learn. Like when my dad told me not to touch that electric fence wire and i did, once.
or when your big brother tells you to pee on it! I still shrivel when I see an electric fence.
HarryK