10 years
Every twelve years it is required by law that a propane tank is certified. The latest date of certification can be located on the neck of the propane tank.
About 120psi for a 16 oz propane tank
The propane will last until the tank is empty.
A 60 gallon tank?
As long as the heater is made for propane.
The propane tank holds 30 liters.
The condensation line on the outside of a propane tank will show the level of fuel. The relative weight can also determine if it is time for a refill. A tank which is rusted or has valve damage should not be refilled.
Before getting a new tank for the backyard grill, call some gas suppliers to get propane tank prices. Prices can vary as much as $10 per tank in a community. Refilling an old tank is often cheaper than getting a new tank.
3
Information about propane tank services can be found at SIS Propane, Propane 101, Temp Heat, Sparlings, Eagle Propane, Natural Handyman and True Point.
The answer is NO LPG (Liquefied Petroleum Gas) is stored at around 150-200psi. Nitrous Oxide is stored at around 800psi A propane tank is simply not strong enough to contain N2O. If one would use N20 in a propane tank the tank would rupture before any sizable amount of "giggle gas" would be added. -CJP
Suburban propane offers sales and rental services for propane tanks. you can fill your tank or buy a tank. they also will come to your home and fill the tank for your house.