The tekmar Boiler Control 284 offers the ultimate level of flexibility in mixed boiler plant operation. Up to four boilers can be sequenced to provide a target temperature based on outdoor temperature reset, domestic hot water and a fixed setpoint. The control works for condensing and noncondensing and modulating, single- or two-stage boilers. Read/write access options are available through BACnet, Modbus and tekmarNet. It also features energy, flow and pressure monitoring, a combustion air damper control and programmable scheduling capability.