I had one of those little round Buddy heaters that caught fire in my camper. The regulator diaphragm failed causing propane to leak from the regulator vent hole, melting the plastic housing from the inside. Scary indeed. Threw it in the trash and will never buy another. The regular rectangular buddy heaters have a totally different regulator design that can't have this problem. I now use one of those.
I've experimented with overfilling the small bottles and putting them in the sun. There was no release of propane but the bottles actually expanded in diameter by up to 3/8" by stretching the sheet steel. They end up with an hourglass shape because the seam in the middle doesn't stretch. Now when refilling small bottles I weigh them and purge any extra propane.
rjxj wrote:
My buddy did catch on fire at one time and it goes back to the refilling small propane bottles issue. I'm not supporting or knocking the refilling of these tanks and just want too share what happened.
I have refilled them for years. Every so often I do throw them out and get new ones. I usually put the empty tank in the freezer then do the refill procedure outdoors. The refill went fine but when it was used in the side compartment of the buddy and the room temperature went up it started to bleed of at the release valve and caught on fire. I grabbed it and went outside. As I was going out it sort of flickered out but scared the heck out of me.
I would never use refilled tanks indoors again. Even before using on a small table top grill, I let them sit in the sun long enough that they have stabilized and bled off any over pressure. It's not the heaters fault so I'm not knocking it. It's not about refilling. It's about the combination of using a chilled bottle with a warm 20 pounder and tipping the scale just to where it needed to release a small amount when warmed up.
I know, I know, in theory it cant over fill but it did when using that method and I know I'm not the only one doing it.