The MPOâ„¢ oil boiler has an efficiency of 87 percent AFUE and is Energy StarÂ® certified. It has a three-pass design and an innovative cast iron section, the company states. The MPO is one of the only high-efficiency oil boilers to maintain its efficiency level as the sections increase, claims the manufacturer. The entire block can be cleaned and vacuumed without removing the flue pipe. Features include a built-in injector nozzle, factory-installed leveling legs, plug-and-play wiring and controls, removable internal flue baffles for adjustable stack temperature, full swing-out cast iron door, and rear cast iron flue collector with cast iron cleanout covers.
Burnham Hydronics, P.O. Box 3079, Lancaster, PA 17601; 717-397-4701; www.burnham.com.