Characteristics: Bismuth is a brittle, silvery-green metal that has a low melting temperature and high specific gravity. Being both stable and non-toxic, bismuth is often used as a replacement for toxic metals such as antimony, cadmium, lead and mercury.
1 (Minimums vary by location and tank size, and can range from 100-1,500 gallons.) More often, the propane company charges a fee of anywhere from $25-$250 a year but averaging around $75-$130 annually, depending on local rates, the size of the tank and whether it's aboveground or underground.
An important consideration for fuel tank installation prices is whether the tank is aboveground or underground. 1  To remove and replace an aboveground tank, plan on paying approximately $1,500 to $2,500. For an underground tank, the total cost might be twice as expensive, or $3,000 to $5,000 and up.