This is from an owner's manual of a TT we owned:
Each gallon of LP gas produces about 91,500 BTUs of heat energy. A typical seven gallon container will provide about 640,500 BTUs of heat energy. Here is a list of typical appliance consumption when turned on full for one hour of operation:
Water heater: 12,000.
Refrigerator: 1,500.
Furnace: 20,000.
Oven: 14,100.
Each burner: 5,600.
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