John Angelillo/UPI/Shutterstock7 New Yorker Francisco Betancourt purchased a space heater ahead of Winter Storm Fern. However, in the Empire State and surrounding areas shivering through the historic cold snap, the prices could be even higher. For Kate, figuring out how to make the most of the singular space heater in her apartment was the trickiest part. During extreme cold, you’re likely burning through four to six extra gallons per day just to keep your house comfortable. zvonkodjuric – stock.adobe.com7 A typical space heater could set you back $109.32 to cover the Big Apple’s 12-day deep freeze.