Glad you are OK really have to be careful with propane.. Here is a funny story (well sort of) many years ago back when I ran a crane we had just got a new 200 ton in and I was getting it ready for a trip to Idaho. It had a propane heater (Now remember new crane) filled the bottle opened the valve and and started pressing the start button, nothing re-checked everything and started pressing the start button again then
"BOOM' blew me out the door, everybody came running out of the office to see what happened. after I got my senses back and calmed down I started taking the covers off to see what had happened, Once everything was exposed I saw the problem right off ! The line that went from the propane tank to the heater was never connected to the heater. Should have been done and tested at the factory But I guess that part of the QC was overlooked. So from now on I check out everything first. Could have been bad but turned out fine, The guy that was helping said he say me bent over in the door then the boom and I was gone, looked around and saw me on the ground. I tell people "Let me tell you about the time I blew myself up"