In a typical bubbling fluidized bed boiler, to what depth is the combustion bed maintained? Power Engineering Chapter 58 In a typical bubbling fluidized bed boiler, to what depth is the combustion bed maintained? a. 1.5 meters b. 1 meter c. 2 meters d. 2.5 meters e. 3 meters Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+