Customer had run out of oil for home, will have a oil delivery tomorrow. Saw smoke downstairs around boiler earlier and fire department shut him down, opened access panel on boiler to make sure boiler wasn’t sooted up which it’s not sooted up just dirty and does need a cleaning, customer will get some diesel for tank to get them heat tonight also customer will put a CO detector near boiler just to be safe, couldn’t fire system due to system out of oil.