With an Annual Fuel Utilization Efficiency (AFUE) of 87%, the MPO is one of the most efficient and reliable boilers in the industry. The new MPO-IQ still has the elements that made the previous version a Best Buy pick in 2008 — the best combination of efficiency and quality of any model that is in it's class. But now it incorporates a plug-and-play control system that lets you add optional features such as outdoor reset, quickly at a later date.

With an Annual Fuel Utilization Efficiency (AFUE) of 86%, the MST is one of the most efficient and most reliable boilers in the industry. It was designed, not only to be the best oil-steam boiler on the market, but also to be the best solution for your family's heating needs.