What are the chances i will die quickly if i release a full propane bottle in a 27' motorhome and ignite it?

It is a 27 foot motorhome by 8 feet wide. i have taped all the windows shut and around all external leaks. motorhome is parked in a safe place away from all other people and structures. Just looking for a percentage chance i will feel little to nothing upon ignition of the propane. thanks for your help.