Performed preventative maintenance for a 3 zone boiler system. Inspected all the electrical components. Confirmed proper high and low voltages. Boiler is a New Yorker model from 2011. Includes, 3 zone panel with 3 circulators, auto fill and newer expansion tank. Systems water pressure was at 20psi on arrival. Found no air in the 3rd floor radiators. Found a couple radiator valves in the off position to which I turned them on for even heat. House had an addition put on from previous owners in the back of the house. This is where baseboards were added. The majority of the house ran by the dining room thermostat. Cleaned the burners and burner compartment. Performed a combustion analysis on the boiler. System is operating at 81.4% efficiency with a CO level of 24ppm. Customer would like to updated the thermostats to be programmable. Attached will be the pricing that customer requested. Thermostats have to operate on batteries since the current ones only have control voltage without a comm