Fire by Design 48" Geo Round "Essex" Eureka Finish Natural Gas Fire Bowl - Match Light h13.7 Can I convert my vent

Can I convert my vent free fireplace or log-set to another gas

*Please Note: Shown with 42" Altitude X Firebox (not included)

Hargrove 3218GO Supreme Ponderosa Individual Log

or fireplace

Model HSSVFRD30NGT Heating Area  1000 sq

Fire by Design 48" Geo Round "Essex" Eureka Finish Natural Gas Fire Bowl - Match Light h13.7 Can I convert my vent48" Geo Round "Essex" Fire Bowl; Outer Diameter: 48", Inner Diameter: 42", Height: 15", Base Diameter: 16", Weight: 210 lbs.; 30" Diameter Spiral Burner 221K BTU's (316 Stainless Steel) 1 2 Gas Inlet with Natural Gas Orifice; 3 4" Chrome Key Valve with Mounting Bracket and (2) 36" Whistle Free Flexible Gas Lines 3 4"; 38" x 13" Rectangle Aluminum Flat Burner Pan (Bowl Packing & Crating Included in Kit Price) Note: Holds 122lbs of Fire Glass 7 Bags of