Section 7 --- LP-Gas Systems
The Executive 2005
318
LP-GAS CONSUMPTION
Each gallon of LP-Gas produces 91,502 BTUs of heat. One 27 gallon tank produces two million
BTU’s. Total consumption depends on the rate of usage by each appliance and the operating time.
The stove typically uses the most gas.
Determine Fuel Consumption:
To determine approximately how many hours an LP-Gas appliance will operate on one gallon of
LP-Gas, use the following formula:
• LP-Gas appliances are rated in Input BTU (British Thermal Units). The rating is usually
stamped or printed on a tag affixed to the appliance. For example: the Input rating of
the appliance is 10,000 BTUs.
• One gallon of LP-Gas produces 91,502 BTUs.
• Divide the amount of BTUs of one gallon of LP-Gas (91,502) by the rating on the appli-
ance in this example 10,000. Net continuous operation time for one gallon of LP-Gas
for this appliance would be approximately 9.2 hours.
The above formula can be useful when trying to determine
the approximate length of time a tank of LP-Gas will last.
Generally, LP-Gas appliances do not operate continuously. An
example would be the typical cycling of the refrigerator.
Determining how long a tank of LP-Gas will last:
• Combine the BTU input totals of all appliances, and the
approximate length of time these appliances operate per
day.
• Multiply the number of liquid gallons in the LP-Gas tank by 91,502.
• Divide the total of BTUs of the LP-Gas tank by the total number of BTUs the appliances
consume, equals the approximate number of hours of operation before refueling.
WARNING:
LP-Gas is highly volatile and extremely explosive. Never use matches or open flame to
test for leaks. Use only approved LP-Gas leak testing solution to test for leaks.
Unapproved solutions can damage copper tubing and brass fittings. Never attempt to
adjust LP-Gas regulators without the use of proper equipment. Improper LP-Gas reg-
ulator adjustment will affect the performance of LP-Gas operated appliances.
Incorrect flame or explosion can occur. Only qualified personnel should perform any
maintenance or repair to the LP-Gas system.
Typical Appliance BTU Ratings
Cooktop
Large - 12,500 BTU
Small - 6,000 BTU
Refrigerator (Norcold)
2-door - 1,500 BTU
4-door - 2,200 BTU
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