WARE Designs and Builds The World’s Largest Mobile Boiler Rooms. WARE also has the largest Mobile Boiler Room Fleet in the United States. A Mobile Boiler Room is an ideal choice for your long-term or complex projects. Your plant or business will continue to operate and stay on track utilizing one of WARE’s Mobile Boiler Rooms. We can help you make plans in advance or assist with a fast quote in case of emergency. Let us know how we can help!