Question: Can a Gas Log be installed and used safely in a Frankling Cast Iron freestanding fire place ( Gas Log vented &/or Ventless)? Presently thefranklin is used for burning wood or coal- and has an eight inch stainless steel double wall chimney with a damper. I have provision for natural gas. I usually burn an approximately 16 inch long piece(s) of wood. Your answer please. If yes- what gas log would you recommend? Answer: You need to use a small set- and then only with the doors and damper full open. Peterson is one major brand that we have put this question to- and they said as long as it fits- and has a 8" flue.This will not be a heating solution- just for looks..as all the heat (or most) goes up the chimney. If you want heat- get a new gas stove.<p> Such an installation can only be used with the doors of the Franklin Fireplace fully open.<p> Most importantly, make certain the manufacturer of your set OK's the specific use.