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.
I just checked gas prices on Gas Buddy and today the average price in the USA appears to be US $3.22 per gallon, while the average price in Canada is Can $1.22 per liter. Using the formula (above in red) I can easily calculate that the same liter amount at today's average price in the US costs ($3.22 X .264=)US $0.85.