For other uses, see Sun (disambiguation). The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process. It is by far the most important source of energy for life on Earth.
Buying and installing a customer-owned aboveground propane tank runs about $450-$1,000 for a 120- or 250-gallon tank and $800-$2,500 for a 500-gallon aboveground tank. Installing an underground tank can cost around $1,800-$3,000 for 500 gallons and $2,000-$3,500 or more for 1,000 gallons. A Wisconsin propane dealer charges $1,599 to install a typical 500-gallon aboveground tank and $2,995 for a 1,000-gallon underground tank.
Gallon is the standard weight term in United States to sale propane. 1 US liquid Gallon is equal to 3.79 litre and 1 litre is equal to 2.2 pound. According to today's rage average rate of propane today was $ 2.36 / Gallon Lets do simple maths here. 20 Pound / 2.2 = 9.09 Litre. 9.09 Litre / 3.79 = 2.40. Cost will be $ 2.36 x 2.40 Gallon = $ 5.664