Les,a good source for propane refer are old RV's.And the older models are better quality.Ones from the 1970's will outast you,getting 10 years today is pretty impressive say many folks.

However,total energy used puts propane at the top of the list vrs electric.Used to have the numbers,but propane fridge uses about 4 times the energy a modern 'EnergyStar' refer uses IIRC.They are NOT energy efficient.