The Series MI-e® Gas Boiler is a high-efficiency residential boiler with an 84% AFUE, meeting 2021 DOE standards. Built with a durable cast iron construction, this boiler includes the Hydrostat IC Integrated Control for reliable ignition, low water cutoff, and energy-saving boiler reset. It offers dual circulator outputs for hot water priority and a low-profile design with a front-facing draft diverter, ideal for tight spaces. Safety features such as flame rollout shut-off and vent safety switches are standard, along with an automatic vent damper.