Fossil-Fuel-Free Cooking

| 5/20/2016 11:00:00 AM

Tags: energy efficiency, home energy, induction ovens, off grid living, Paul Scheckel, Vermont,

Geek thing of the day! Since I wrote about induction cooking 2 years ago, the cost has come down enough now that I bought a single “burner” unit and after a week of use, the numbers are in.

As a long-time gas range cook, the switch takes some getting used to, and it only works with pots that are magnetic. But, I like that it’s fast and I can dial in the temperature fairly tightly. Of course, I didn’t trust any of the ad hype, so I got out the meters and the spreadsheet. Here are the results.

Comparison Between Gas Range and Induction Burner

Gas range, 7,000 BTU burner: time to boil 1 quart of 60 degrees Fahrenheit water was 8 minutes 30 seconds, consuming 992 BTUs of heating energy (one British Thermal Unit is approximately equivalent to the heat released by burning one wooden kitchen match).

Induction cooker: same pot, same temperature and quantity of water, the burner used 1,300 watts at the highest setting and took 5 minutes 50 seconds to boil. This works out to 0.126 kilowatt-hour of electricity and is equivalent to 430 BTUs of heating energy.

cook time comparison

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