Today's gas logs are much more realistic, with handcrafted logs, glowing coals and dancing flames. Monessen gas logs offer a wide range of styles and sizes (ranging form 20-36 inches) to fit almost any fireplace opening. Monessen offers the broadest line of vented and vent-free gas log models and the most realistic ceramic fiber log designs in the industry. All vent-free gas logs feature: multiple settings, dual stainless steel burner systems, matchless piezo ignition, safety pilot systems and heavy duty grates. Monessen has a lifetime warranty on their logs.