Utica Boilers has released the UB 95M-200 boiler that is 95% efficient and fully modulating from 80-200 mbh. The 95% AFUE rating makes this boiler eligible for the Federal Tax Credit of $150. The UB 95M-200 features a one-piece cast aluminum heat exchanger. The one-piece casting eliminates section interface leaks and includes wide waterways, resulting in little pressure drop. This also eliminates the need for expensive and bulky high head circulators or special near boiler piping. The sealed combustion design allows the boiler to be vented with inexpensive PVC pipe. A simple control scheme means the boiler can be easily maintained. Utica Boilers.