Propane provides clean fuel for fireplaces ... typically only hold 80% of their rated capacity. For example, a 100-gallon tank holds 80 gallons of propane. In addition to size, the tank’s ...

Commonly called 20-pound propane tanks, gas grill tanks, or grill propane cylinders, these tanks hold 4.6 gallons of propane.

But how do you know how much propane is left in the tank? Most propane tanks don't come with a gauge to let you know how much fuel is remaining ... First, consider that one gallon (3.8 liters ...