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.
So how much does heating oil tank replacement cost? The average heating oil tank replacement price is around $1,000 to $2,000 or more. The cost of the substitution will rely on upon the area, size, and your variety of tank. Oil storage tanks are normally made of steel, fiberglass, and a combination.