Bradford White Water Heaters has released another new mobile app for professionals. The eF Series® Efficiency Calculator App enables plumbing contractors and engineers to quickly and easily show customers the energy and cost saving benefits of installing Bradford White eF Series® Ultra High Efficiency commercial water heaters. The new app calculates reduction in run time, therms per day and therms per year savings, and cost per day and cost per year savings. The app also includes the options to email or print the results. The eF Series® Efficiency Calculator App, along with Bradford White’s Warranty Check App and RightSpec® Cross Reference App, is available for free at www.bradfordwhite.com.