The MAC high-efficiency, wall-mounted modulating condensing boiler from Utica Boilers has artificial intelligence controls that self-commission and continuously calibrate to ensure maximum efficiency at all times. It has the ability to automatically set up the boiler during initial startup, recognizing whether propane or natural gas is being used. The control measures water temperature, flue gas temperature and pressure that can impact boiler operation and carbon monoxide levels. The control shuts down boiler operation should levels exceed normal operating values. It is available in Combi or space heating models. The Combi model operates at a high of 153 MBH during a call for domestic hot water. During a call for central heating, both
models operate at a high of 126 MBH. 315/797-1310; www.uticaboilers.com.