Astec has test-fired the 500th burner manufactured since Astec entered the burner market in 2003. Astec built the 100-million BTU/hr gas-and-oil-firing Whisper Jet? burner to be used with a new 375 mtph Astec batch plant produced for Aztexnika in Baku, Azerbaijan. Astec burners offer the latest in reliable burner technology combined with complete one-source responsibility.