R. H. Peterson G8E-16/20/24R-12N - Natural Gas - 9,500 BTU's G8 Series Burners are ANSI Certified w/Pre-Assembled Control Valve and ODS Safety System, Custom Grate, and Connector Kit.  The G8 Series is available for Natural Gas and Liquid Propane in 16", 20", and 24" sets w/BTU ratings from 9,500 to 20,000. For use in fully vented wood burning fireplaces burned with the damper closed, or for approved ventless gas fireboxes that accept aftermarket vent-free gas logs. For prefabricated fireplaces (either vented or ventless), you must refer to your owners manual to see if ventless gas logs are allowed or if there are any restrictions or limitations. Not for use in California or any other city or state that does not allow the use of ventless products indoors (consult with your local building department before purchasing). Can only be used with Peterson log sets that are designed specifically to fit this burner. Cannot be used with any other brand of logs. Dimension:   G8E-16 G8E-20 G8E-24 Front Width :  17"  21"  26" Rear Width :  13"  13"  13" Depth :  9 1/2"  9 1/2"  9 1/2" Height :  17  17"  17"