with lots of folks in my area running propane, I've never heard anyone mention burnt valves/seats, and my forklift has been on propane for decades, runs fine

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics