Specifications include, but are not limited to: Two options exist for the boiler replacement project. Option 1 is to replace the two existing boilers with similar, more energy efficient boilers. Option 2 is to replace the two boilers with a three-boiler system offering better turndown and energy performance. Option #2 is the preferred option depending on overall project price. Option 1: This option will replace the two existing Weil McLain Boilers with boilers of similar capacities. The boilers would remain configured as a two high mass boilers and a three way mixing valve to control the building loop temperature, presumably with an outdoor temperature reset, unless equipment selection requires alternate piping arrangements. The boilers would continue to be operated in a primary / standby arrangement. This option would utilize the two existing boiler pads, primary constant flow primary pumps, and current fuel oil system. Minimal piping, and breeching modifications are projected with option #1. Boiler controls are to be networked together for boiler primary / standby control. Future integration with the building management system (BMS) will require BACNet MS/TP capability and should be included with the controls package. Option 2: This option will replace the two existing boilers with a three-boiler system. The basis of design is three (3) DE Dietrich Eutectic cast iron 65 H.P., dual fuel-fired boilers (#2 / Propane) (or equal). Boiler controls are to be networked together for boiler staging control.