Size:PRO Converting gel fireplace fuel cans to ethanol cup burner insert as as easy as placing this cup burner instead of gel cans and enjoy a clean vibrant flame for the entire duration of the fire rather than 20 minutes before the flame sinks into the gel cup. No need to worry about disposing the gel cans and overfilling landfills. Ventless ethanol fireplaces are the most eco-friendly fireplaces on the market.Ê This cup is designed to be used for 10,000 hours, then it is as simple as replacing the ceramic wool and use for another 10,000 hours. In addition, you may convert Gas Logs, Wood Log, Electric Log, Electric Fireplace Insert or Wood Burning Fireplace Insert to ethanol has never been easier with an ethanol fireplace cup and a set of Regal Flame logs and/or pebbles. This fireplace burner insert is eco-friendly, and ventless that burns ethanol fireplace fuel.