For a gas burner to operate properly, it requires the proper amount of combustion air into the fireplace, the correct amount of gas pressure and lastly for the media and embers (logs) to be in the correct position. Over time, dust, bugs and other debris may find its way onto the burners, the pilot and air passageways which will inhibit the ability to burn efficiently as designed. A 17 point tune up, called a clean, check and adjust, is necessary at least every few years to insure all the components are clean and properly positioned to enable clean efficient burning within the fireplace.