VentedVented gas logs are the most popular type of gas logs. They must be installed with a chimney which limits the heating efficiency. Vented gas logs resemble a realistic wood fire more than vent-free logs and are very flexible which means logs can be repositioned.
Vent-Free (Ventless)Vent-Free gas logs do not require a chimney to be installed in your home. They are very efficient as a primary heat source because vent-free logs produce high heat! All are equipped with an ODS (Oxygen Depletion Sensor) while special permits may apply. Vent-free gas logs are also less flexible than vented because you can not reposition your logs.
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