Unvented Gas Logs Unvented gas logs are available for natural gas or propane and all require that you have an existing wood burning fireplace with a chimney system installed . Gas logs are all available with multi-function safety controls to assure that unlit gas cannot escape into the living area. Unvented gas logs are used for converting existing wood burning fireplaces - damper can be left fully closed. If you are in the market for unvented gas logs, please take a moment to browse the selection offered on our website.
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