Induction Is the Most Efficient Cooking Method — By Far
Gas ranges are roughly 40% efficient: 60% of combustion heat escapes around the pan and heats the kitchen rather than the food. Electric coil and glass-top radiant are 70–80% efficient. Induction is 85–90% efficient — heat is generated magnetically within the pan itself, with minimal waste. This efficiency difference translates directly to cooking speed: water boils 20–50% faster on induction vs. gas, the cooking surface stays cooler (dramatically reducing burn risk), and the kitchen heats up less during summer cooking. For households running air conditioning, reducing kitchen heat gain from cooking has a secondary cooling cost benefit.
Annual Cooking Cost: Real Numbers
The average U.S. household uses roughly 40–60 therms/year for cooking on gas. At $1.40/therm, that's $56–$84/year. Induction uses approximately 300–500 kWh/year. At 18¢/kWh, that's $54–$90/year. At the national average rate, the annual cost is now close to a wash between the two (within about $10 either way) rather than a clear win for induction — not a strong financial driver by itself. Where the economics shift is in markets with high gas prices (New England: $2.00/therm, making gas cooking $80–$120/year) or cheap electricity (Pacific Northwest: 10¢/kWh, making induction cooking $30–$50/year).
Indoor Air Quality: The Underreported Concern
Stanford University and RMI (Rocky Mountain Institute) studies published 2022–2023 documented that gas stoves emit nitrogen dioxide, benzene, and other combustion byproducts at levels that exceed EPA outdoor air quality standards during cooking — even with range hoods operating. A 2022 study found NO₂ levels 2× EPA outdoor standards within 15 minutes of gas cooking in a typical kitchen. Research has associated gas cooking with childhood respiratory issues. This health dimension is separate from energy costs but relevant for households with children, asthmatics, or any occupants with respiratory conditions.
The Practical Transition: What You Need to Know
Switching from gas to induction requires: (1) A 240V/50A circuit at the stove location — standard for electric ranges, may require an electrician if currently gas only ($200–$600 for panel work); (2) Induction-compatible cookware — cast iron, stainless steel, carbon steel all work; aluminum and copper don't without a magnetic base (a simple magnet test: if a magnet sticks, your pot works). Most people find 50–80% of their existing cookware is induction-compatible. Portable induction burners ($50–$100) are an excellent way to test induction cooking before committing to a full range replacement.