Showed up early to the job site and began to disconnect the electrical wiring to the boiler (supply & low voltage). Drained the heating zones along with the boiler and began to cut it out of place. Once the unit was disconnected Luis and I took the unit through the Bilko doors up the stairs and outside. Brad and Dan showed up with the new boiler and assisted us in bringing the new unit downstairs and in place. Supplied a new Peerless natural gas four section boiler. Roughed in all accessories such as a new supply line with air scoop , air vent, extrol 30 expansion tank. A new return with circulator, boiler drain, service valve. New exhaust with damper. Replumbed the gas line. Performed all the necessary wiring to the controls, damper, thermostat, circulator, low water cut off. Applied hydraulic cement around the chimney breach for a seal tight joint. Filled the boiler with water. Checked for leaks and purged the heating zones. Finally we fired up the boiler and observed it while it rea