Zeeco radiant wall round flame burners, model RWSF-4. Shop order 17928. Fired with natural gas or syngas. Heat max per burner is 1.25 MMBTU, normal heat is 1.1 MMBTU. Gas line 3/4 inch, pilot line 1 inch. Physical size is approx 22 x 22 x 44 OAL. Lo-NOx, side fired. Stable flame over a wide range of conditions. Total Heat Load for all burners is 19.8 MM BTU/HR. Qty 36 - priced for all, includes removal and loading on your truck.