400 pounds
450
233:1 (or about 31.1 SCFT for every gallon of liquid Butane)
There is a fair amount of variation, but the standard small 16.4oz (1 lb) propane cylinder usually weighs just about a pound when empty (Tare weight, or the weight of the container itself). It is then usually charged with 16oz (by weight) of liquid propane for a total of around 32iz (2 lb).In SummaryTare Weight: 16oz (weight of the container/bottle)Net Weight: 16oz (weight of the liquid propane fuel)Gross Weight 32oz (weight of a full bottle)or in more practical terms, the closer your bottle is to weighing 1 lb, the closer you are to empty.
One gallon of any liquid will end up weighing the same. In this case, one gallon in the United States is equal to 8.345 pounds.
This site: http://www.pmak.org/public/propane_facts.html states the following: The specific gravity of propane liquid is 0.504; water is 1. Therefore 1 litre of propane weighs 0.504kg. (1 litre of water weighs 1kg)
depends on the liquid. One gallon of gasoline would be very different from one gallon of mercury
2350lbs. on average
A gallon of Liquid Propane Gas (LPG) weighs 4.23 lbs (source:wikipedia & yahoo!answers). Note that at "normal" temperatures (above it's natural boiling point of -40F) and pressures (propane is normally stored as a liquid by storing under pressures in the vicinity of 250-300psi), propane is a gas. As a gas, it's mass (or weight for most people living on Earth) is significantly less. Most "propane weight" discussions refer to LPG, but it's important to point out there is a difference in mass, therefore weight, between liquid propane and gaseous propane.
233:1 (or about 31.1 SCFT for every gallon of liquid Butane)
There is a fair amount of variation, but the standard small 16.4oz (1 lb) propane cylinder usually weighs just about a pound when empty (Tare weight, or the weight of the container itself). It is then usually charged with 16oz (by weight) of liquid propane for a total of around 32iz (2 lb).In SummaryTare Weight: 16oz (weight of the container/bottle)Net Weight: 16oz (weight of the liquid propane fuel)Gross Weight 32oz (weight of a full bottle)or in more practical terms, the closer your bottle is to weighing 1 lb, the closer you are to empty.
One gallon of any liquid will end up weighing the same. In this case, one gallon in the United States is equal to 8.345 pounds.
a typical steel "30 pound" liquid propane tank weighs about 25-28 pounds empty.propane tank markings (on collar)propane weighs about 4.125 pounds per gallon and a "30 pound tank" willhold about 7.5 gallons so a full tank will weigh about 55 pounds or so./source: wiki.answers.com/
500 pounds
That would depend on it`s size or input rating. You can get the input rating off the unit nameplate and divide that # by 2500 and that will tell you how many cubic feet of propane vapor the furnace burns per hour. If you buy propane by the gallon ask your supplier how many cubic feet of vapor a gallon of liquid propane yields and you can figure your answer.
This site: http://www.pmak.org/public/propane_facts.html states the following: The specific gravity of propane liquid is 0.504; water is 1. Therefore 1 litre of propane weighs 0.504kg. (1 litre of water weighs 1kg)
How much does it cost to heat a 1000 square ft home with liquid propane gas in Mass
1 US gallon weighs approx 0.0157 lbs at normal temperature and pressure.
1 gallon of propane gas weighs 4.2 pounds.