The Series 2 version of Weil-McLain’s AquaBalance line of combination and heat-only wall-mount boilers features stainless steel, titanium-infused heat-exchange technology to achieve an AFUE rating of 95 percent. Compatible with either natural gas or propane (with conversion kit), the space-saving boilers also reduce energy use with on-demand warmth. Both combi and heat-only versions are available in three sizes: 80, 120, and 155 MBH input (MBH = 1,000 Btu/hr), with digital displays and removable sides for easier service.
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