Blizzard warning -- How can we heat our Condo in a power outage?

We have gas fired hot-water heat, but the boiler requires electrical power for its controls. Lose power and there will be no heat. We we’re due for 15 to 20 inches (38,1 to 50.8 cm) of snow this evening on top of last night’s 2 inches. Winds of up to 65 MPH (104.6 KPH) are expected, so power outages are a real possibility, and if power goes out, it will take time for the crews to get through unploughed streets to restore service. How can we heat our little condo if the power is out for an extended time. There is no fireplace or flu through which to vent carbon monoxide and fumes from any sort of oil burning heater.