Weil-McLain(Michigan City, IN) has added two new sizes to its family of gas-fired commercial boilers, the 21-in.-wide LGB-4 and the 26-in.- wide LGB-5. Both are available for water or steam, ready for field assembly, or completely packaged. These water units range from 282- to 366-MBtuh, while steam units range from 1,013- to 1317-s.f. steam. According to the company, both units carry a 10-year warranty and both operate at 81% operating efficiency.