Homes in the Midwest consumed 34% more natural gas than the national average�76.1 million British thermal units (MMBtu) per household compared with 56.6 MMBtu nationally�according to our 2020 Residential Energy Consumption Survey (RECS). The newest midwestern homes, those built since 2010, consumed an average of 48.9 MMBtu of natural gas for space heating, and homes built before 1950 consumed an average of 74.8 MMBtu.