is the boiler running? Does it run if you turn up the thermostat?
If not, what was the power problem? Is there a manual reset required on the boiler? Did it lock out for some reason (if oil, did the burner lose prime, for instance?). Was there a surge along with the power outage? If there was, did it fry something?
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
Hoffman Equipped System (all original except boiler), Weil-McClain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch