The best and most effective way of beating all levels.
Get all the words in you boiler to be 5 star words and have a 4 jade and 4 Iron and then create a list of words containing these letters, the list must be at least 20 words long, then keep cycling through them all :D
Spartan793
 "Call Of Idle"){kind=icon}
 "Saucer Shootin 1.5"){kind=icon}
 "The Great Sperm Race"){kind=icon}
 "Escape from really boring island"){kind=icon}
 "Gamma Bros"){kind=tracking}
 "The Really Pretty Button"){kind=icon}
 "Shadez: The Black Operations"){kind=icon}
 "Clockwords: Prelude"){kind=icon}
 "Cover Orange"){kind=icon}
 "The Gun Game"){kind=icon}
 "Drakojan Skies Acolytes"){kind=icon}
 "Cursed Winds"){kind=icon}
 "Anaksha: Female Assassin"){kind=icon}