Vanguard Gas Logs 18 Inch Golden Oak Vent-Free Natural Gas Log Set - $467.50

Manuel Safety Pilot:
The Manual Safety Pilot lighting method features a pilot valve assembly pre-installed on your burner. You then have a pilot light that you can keep lit giving you the ability to turn the log set on and off as many times as you want without ever holding a match to the burner. The safety pilot kit has a safety mechanism built in which senses if the pilot light ever goes out and shuts off the gas supply. It also will shot off the gas supply if it senses a lack of oxygen as well.
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Vent Free Gas Logs:
Vent Free (also known as non-vented, unvented or ventless)Gas Logs do not require a chimney. They keep 99 percent of the heat produced in your home, and are very efficient as a primary heat source. All of our vent free logs are equipped with an ODS (Oxygen Depletion Sensor). This device cuts the flame off if the oxygen level in the air drops below a safe level. (This situation is very rare) Vent Free logs cannot be repositioned once they are installed. This is due to vent free log sets having to maintain a complete clean burn which requires the logs to sit on the grate in only one way. Some states (California, Massachusetts, and a few others) require special permits in order to operate non-vented appliances indoors. It is the customer's responsibility to know his or her local codes and limitations.
Compare "Vent Free" to "Vented"