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Microwave vs. Stove - which one is more energy efficient?

energy efficient microwaveYour microwave is a much more efficient way to heat or reheat than your stove top, mainly because your stovetop wastes quite a fair amount of heat. Your microwave uses about 80 percent less energy than your stove for heating up relatively small amounts of food. 

Even though your microwave uses a lot of electricity, it’s a small burst of power vs. the long, delayed energy used to heat up your stove. Of course, you can save some of the energy you’re using on your stove by using pots that are size appropriate to the burner. The EPA warns that using a six inch pot on an eight inch burner can waste the majority of the burner’s heat.

You can heat up a cup of ice cold water to boiling in an 800-watt microwave in 2.5 minutes. To find out how much energy that would take, you calculate the amount of electricity used in kilowatt hours (kWh) by taking the device’s wattage and multiplying it by the time. So 2.5 minutes = 0.042 hours, and 800 watts is .8 kW. Multiplying kWh capacity by time, we get .8(0.042) = .034 kWh to heat the cup of water.

So, when you want a great reason to do dinner the easy way and need some scientific numbers to back it up, refer back to this blog and pop that plate in the microwave - to save money of course.

Check out our substainability page for more energy saving tips. 

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About John's Electric

Linn Park Fountain, Birmingham, AL

John's Electric Inc. is a family owned and operated electrical contractor business that proudly provides electrician services in Birmingham, AL and the surrounding areas such as Hoover, Homewood, Chelsea, Vestavia Hills, Pelham, Alabaster, Trussville, and Mountain Brook. John's Electric provides residential and commercial electrical solutions at competitive rates. We have been in this line of work for 30 years, giving us not only experience but expertise as well. You can depend on us. We are a state licensed electrician (#03875) for your protection.

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What others say about John's Electric Service

Aubrey upgraded our electrical fuse panel, put in an updated outside service panel, replaced the main service line from the outside panel to the inside fuse box, and installed several outlets. His original estimate was complete and accurate. He brought our electrical system up to code and made several recommendations for changes and upgrades that we had not thought of. He worked with our schedule, was on time and very professional, and left our home as clean as when he arrived. He was extremely conscientious and reliable. We very highly recommend John's Electric and will definitely use them again.

Debbie S. Dumas

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Aubrey was courteous, prompt and helpful. He knew what I needed quickly. I will be calling him the next time I need electrical service. Gave me a great price.

Diane Lockhart

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Mr. Teele arrived quickly, diagnosed our outage problem and fixed it that same afternoon. We have an older electrical system that many other electricians simply won't work with. But Mr. Teele confidently made repairs and even called to check on us the next day to ensure all was working well.

Danielle H Plott

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Prompt, quick service, reasonable rates.

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