R. H. Peterson 24″ Pioneer Oak Real Fyre Gas Logs with G4 Burner Kit and Match Light – No Pilot Ignition. System is for Vented Fireplaces. This is a vented gas log burner system designed to be installed in wood burning fireplaces and burned with the damper propped open. You can choose from 3 different sizes. It burns Natural Gas and is for use indoors only.