Quote:
Originally Posted by Gary RVRoamer
The little LP flame is efficient and well-directed, but it doesn't make the fridge any colder than the electric heater. Once the ammonia coolant boils, it makes no difference how it got heated. And if it doesn't boil, the fridge won't cool at all. So it's possible the LP flame is a little more cost-efficient, but it won't make the fridge "work better", i.e. get colder or cool down more quickly.
You may be thinking of water heaters, where the electric heat elements produces less btus than the gas flame and thus takes longer to heat the water. That's a different animal than an absorption fridge cooling unit.
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Gary I think you and I are walking down separate paths but mostly side by side. You are correct as far as how the coolant has to receive a sufficient amount of heat to boil and I am generally aware of how these heat absorption gadgets work. Btu's are Btu's regardless of where they originate and that they have to transfer heat to that coolant. What I'm trying to say is that the electric source may not be as well directed as the gas flame, hence an increase in efficiency for the gas flame. This is based on a foggy memory and if I recall, from the old Trailer Life (before CW/Lemonis ownership, i.e. 1970's)