Across the U.S., temperatures are cooling down and homes are heating up. Another thing on the rise in the household natural gas bill. The U.S. Energy Information Agency (EIA) estimates that 47% of U.S. homes use natural gas as their primary heating source. It’s the most prevalent means of heating everywhere except the southeast where electricity reigns supreme. In 2017 this number worked out to be 69,041,815 residential natural gas…