Hargrove Radiant Heat 30" Cimarron Timber Vent Free Propane Gas Log With Millivolt Control biscuit Model 24CNST1T5CMT Product Size 24"

Model 24CNST1T5CMT Product Size 24" BTU 130000 Fuel Type Natural Gas Vent Type Vented Certification ANSI Z21

while some have just 1 inch

EcoSmart Fire 120" Indoor EL120 Electric Fireplace by Mad Design Group

Model O-40-ST-DS-T2 Material Ceramic

Hargrove Radiant Heat 30" Cimarron Timber Vent Free Propane Gas Log With Millivolt Control biscuit Model 24CNST1T5CMT Product Size 24"Hargrove's Radiant Heat series vent free log sets allow you to have a beautifully glowing log set with no heat loss. The Cimarron Timbers incorporates Hargrove's Radiant Heat Technology into a Vent Free set. What's Included 30" Cimarron Timber Vent Free Propane Gas Log With Millivolt Control Features Revolutionary molding process gives log detail previously unattainable with Ceramic Fiber Logs Enormous glowing ember bed Two unique log styles Available