AERCO has released its Benchmark® Platinum boiler series. According to the company, the boilers feature technology and components aimed at optimizing the system and maximizing efficiencies by up to an additional 9%. These components include AERtrim (AERCO's patented O2 Trim technology), Dual Returns, and onAER remote monitoring. Benchmark Platinum is available in eight sizes from 750 to 6,000 Btuh.