Almot wrote:
I think Pnichols meant - when propane furnace fails. Not really an emergency for most people, can be easily remedied with propane heater. I wouldn't be able to sleep with furnace cycling, anyway. Thick duvet is better - never fails
We've had an anomaly in our main propane system occur twice in the last 3 years that many would have considered to be "main propane system failure".
After owning our RV for about 9 years, I began to smell propane slightly on the outside of the RV around it's built-in 18 gallon propane tank area. It was coming from a leak in the threads of the main shutoff valve where it was screwed into the tank. I of course had it repaired. Some people would consider that as a main propane system failure and ceased using the system immediately if they had noticed it on an RV trip - maybe a long ways from a repair facility.
Earlier this year the same slight propane smell begain again while the RV was in storage in our back yard. A few days ago a different RV repair shop said it was the same cause and they are at this time repariing it. Again, some people would consider that as a main propane system failure and ceased using the system immediately if they had noticed it on an RV trip.
Fortunately for us, neither of the two times this occured constituted an "emergency" situation during drycamping calling for use of one of our generators to keep the refrigerator running on 120V AC, or to run an electric heater in cold weather on 120V AC. We can't sit around in the evening, or sleep, or eat breakfast in a sleeping bag - those backpacking type days are over for us - even when inside a box on wheels.
Things happen - and at least one generator along can provide a great Plan B.