Choosing a set of Gas Logs can be a daunting task given the sheer amount of choices available. One of the first choices that you will face when shopping for a gas log set is the gas with which you will be fueling your flame. Generally, the choice is between Natural Gas and Liquid Propane Gas. In this document, we will highlight the differences between the two fuel types, and help you decide which fuel type will be the ideal medium for your Gas Log installation.

Liquid Propane Gas


Liquid Propane Gas, or LPG, is a clean burning and widely available fuel. It has been listed as a clean fuel in the Clean Air Act in addition to the National Energy Policy Act. Propane is actually a byproduct of the processing of Natural Gas. It contains more carbon than NG, and therefore burns up to three times hotter. Keep in mind, however, that BTU ratings can be used to compare heat ratings between systems regardless of fuel type used.

Propane is heavier than air, which can cause it to pool at ground level if any valves are left open when not in use. For this reason, propane fueled gas log sets are required to use a safety pilot ignition system. Propane would be most prominent in areas where Natural Gas installations are difficult or unavailable.

Natural Gas

Natural Gas

Natural Gas is the most commonplace fuel for Gas Log Installations. It is widely available, and there is no need to have a tank refilled, as is the case with propane. It also burns very clean, a clear advantage over a traditional wood burning fireplace. Another advantage is that it generally is cost less to operate a natural gas fireplace than it is to buy wood as fuel for a wood burning fireplace.

Natural Gas is a great choice especially when you have other Natural Gas appliances already in your home. Natural Gas is lighter than air, and dissipates when released. Although some municipalities may not require a safety pilot, it is still wise to install one regardless of the type of gas you plan to use. A good safety pilot can help to prevent damage to property or bodily harm.

If you will be running an additional natural gas line into a home that is already equipped to handle it, be sure to use a certified plumber to help. A certified plumber will need to know the BTU input of the Gas Log system that you are purchasing. This will ensure that the amount of gas being delivered to your logs is correct. If there is not enough pressure being delivered to your gas logs, then the log set will not be able to operate at its full potential, affecting both efficiency and aesthetic flame quality.