To the best of my knowledge propane gas line cannot be connected by soldering. You have to use compression fittings with a flaring tool like you would use to flare fittings on an automotive brake line, however if you are unfamiliar with gas and how to use it I would suggest using a reputable contractor who specializes in heating. I have installed lines in my own home, and also am a general contractor, but still get nervous when dealing with gas. It can be very dangerous and if no ventilation, may cause you to pass out or even possibly be fatal. Please be extremely careful, best wishes.
Propane is a gas a room temperature if it is not compressed. However, if it put in a canister under high enough pressure, it will be a liquid even at room temperature. Propane is a liquid below -44 degrees F or if its compressed. Grill bottles are only fillid 80% full with liquid. so you can use the propane gas on the top of the bottle.
Propane transitions from a gas to a liquid state at a pressure of about 220 psi (pounds per square inch).
Liquid propane is a colorless and odorless gas that has been compressed into a liquid state for easy storage and transportation. It is commonly used as a fuel for heating and cooking in households, as well as in vehicles, industrial applications, and agriculture.
LPG stands for Liquefied Petroleum Gas, which means that it is a gas which has been compressed to liquid in cylinders. For more info, go this website: http://en.wikipedia.org/wiki/Liquefied_petroleum_gas
Propane is a gas under normal conditions of pressure and temperature, but is normally storm under high pressure as a liquid.
Your attic won't get cold enough to freeze propane. Propane turns from a gas to a liquid at -44 degrees. If the propane line freezes, it is because of moisture that has gotten into the pipe.
gas and liquid
Propane
The majority use liquid propane, and some are hooked into the home's natural gas line.Natural, Propane, Charcoal fuel.
Propane is a gas a room temperature if it is not compressed. However, if it put in a canister under high enough pressure, it will be a liquid even at room temperature. Propane is a liquid below -44 degrees F or if its compressed. Grill bottles are only fillid 80% full with liquid. so you can use the propane gas on the top of the bottle.
Propane burning is a chemical change. The propane reacts with oxygen. New compounds are the result of the process.Let me add a little more information to this. Propane stored in the tank is in liquid form under pressure (actually an equilibrium of propane gas in the top of the tank, and liquid propane in the bottom). When you open the valve, the gas escapes into the hose and goes to the burners.As the gas escapes, some of the liquid propane evaporates into gas form.The change from liquid to gas is a physical change.
LP, Liquid propane, Propane. All the same thing.
Many gasses will turn to liquid when compressed, as in Propane, when compressed becomes liquid propane gas LPG
Propane transitions from a gas to a liquid state at a pressure of about 220 psi (pounds per square inch).
Liquid propane gas
Liquid propane is a colorless and odorless gas that has been compressed into a liquid state for easy storage and transportation. It is commonly used as a fuel for heating and cooking in households, as well as in vehicles, industrial applications, and agriculture.
LPG stands for Liquefied Petroleum Gas, which means that it is a gas which has been compressed to liquid in cylinders. For more info, go this website: http://en.wikipedia.org/wiki/Liquefied_petroleum_gas