Vented and Vent-Free, which type of log will work for me? To help our customers decide which type to buy we always ask one question. “Do you want the gas logs primarily for heating your home or for a great looking flame?” If your answer is to primarily heat your home with a great looking flame being your second priority, we recommend Vent-Free gas logs. Vent-Free gas logs are 99% efficient. This is because when they burn, you keep the flue closed on your fireplace. All of the heat stays in your home and does not escape up the flue. If your answer is to use your gas logs primarily for a great looking flame and to generate some heat that you can feel while standing near the gas logs, then we recommend Vented gas logs. Since you burn gas logs with the flue wide open, they have access to a large amount of oxygen so the flame looks great but most of the heat goes up the chimney. Call one of our sales specialists today to help you choose the best gas logs for your home or business. Our toll-free number is (800) 421-4447.