Most gas stoves have removable burners. This allows for convenient cleaning of the stove and makes burners easy to replace if they begin to malfunction or leaks. Removable burners can be replaced by homeowners, making the repair cheaper than calling a repairman.
Gas stove burners are accessed by lifting the top of the stove up. While holding the stove open, reach down and grasp the burner firmly, pull the burner towards the back of the stove, and remove it. Burners can be cleaned with soapy water in a sink. Some antique burners may not be as easy to remove as the burners on newer stoves.