Absorption refrigeration principal has been used since early 1800's
Commercial production in early 1900s but were expensive $350-$600 OUCH!
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Make sure they are level when operated stationary. OK to operate while in transit.
Use ammonia, hydrogen, water and sodium chromate mixture as coolant. Newer versions have replaced hydrogen with helium
Takes 8-12 hrs. on initial start-up to properly cool down.
Freezer gets cold first then food section can cool down
Freezer can be cold and food section not get cold due to blaockage
Don't place hot foods in fridge...best to pre-cool items first
Can have difficulty keeping cool when outside temps are above 100*F and if below 32*F
Can be operated on 110V AC power, 12V DC power or Propane
Come in many different sizes/styles from basic to all the bells and whistles
Can be care free/reliable or junk
Most have been recalled
Some have caused fires
RV Absorption Refrigerator Homework
LINKLINKLINKLINKFire Info LinkWhen you get thru reading the provided links you should be able to write a good summary. Don't forget 'credits/acknowledgements'