It is not waste. The furnace has extracted the majority of the heat through the combustion process to the point of "condensation". Condensation= H2O. lc
Natural gas.
none
Yes, combustion of natural gas is a form of chemical change.
3.5
exothermic
Yes.
Oil furnaces cannot be converted to gas - LP or natural - as they have totally different burners and have very different internal construction.
Natural Gas Sometimes referred to as forced air systems, these heating systems burn natural gas, propane, oil, or use electricity to heat your home, and are the most commonly used heating systems. Air is heated in the furnace and then distributed throughout your house via ductwork.
Natural gas is made due to anaerobic fermentation. In the early ages of the world, plants where being fermented, but the gas was unable to escape out of the ground. This made the bulk of natural gas under the earths crust. Nowadays waste water treatment plants are also making use of producing natural gas to get rid of certain components in the waste, and to use the natural gas as a method to reduce their electicity bills
Natural gas furnaces work by combining natural gas with air and lighting it. This results in a flame that heats up the air and warms the rest of the house.
Change out the gas flow orifice size to propane and adjust the gas valve.
If your furnace is less then 50000btus then yes.