How to Read Your Propane Tank Gauge

The majority of our tank gauges are Rochester gauges that display to the number "80." The tank will normally be filled to approximately 80% to allow for heat expansion. Occasionally a gauge may become "stuck" and often a light tap on the guage will correct this.

% to Gallons Table for Propane Tanks
% in Tank 120-Gal
(420# Cyl)
250-Gal
(2-420# Cyls)
325-Gal
(3-420# Cyls)
500-Gal
(4-420# Cyls)
1,000-Gal
80% 96 200 260 400 800
70% 84 175 228 350 700
60% 72 150 195 300 600
50% 60 125 163 250 500
40% 48 100 130 200 400
30% 36 75 98 150 300
20% 24 50 65 100 200
10% 12 25 33 50 100

 

Note: This is an approximation only. Fluctuating temperatures or condition changes could affect the % reflected during the day.

91,500 BTU's burn one gallon of propane in one hour. For example, a gas log burner that has 40,000 BTUs, would take two hours to burn one gallon of gas if the set ran constantly.