Frankfurt Motor Show 2011: Eberspaecher Bioethanol Heater

Eberspaecher, a German company that specializes in exhaust and electronic systems, has announced the debut of what the company claims is the world’s first pure bio-ethanol vehicle heater. On display at the Frankfurt Motor Show 2011, the new technology can allow electric vehicles to save battery energy on heating in the winter months.

Bio-ethanol, often derived from feedstock, is usually used as a mixture in biofuels, but the Eberspaecher Hydronic 2 E-Mobility, type E4S water heater (E4s) uses pure bio-ethanol, as little as 0.11 gallons per hour. So far, the company has tested the technology on 20 electric Fiorinos (small fleet vans) from the German supplier Karabag [PDF], with positive results.

Eberspaecher Hydronic 2 E-Mobility, Eberspaecher, Electric Vehicles, Water Heaters, Frankfurt Motor Show 2011, Germany

image via Eberspaecher

The company is also releasing two pure bio-ethanol air heaters, both a 3.8 kilowatt version for larger vehicles and 2.2 kilowatt version for smaller cars called the Airtronic E-Mobility E2 (E2). Both the E4S and E2 can run on E85, the name for biofuel that is a blend of 85% ethanol.

Advancements like the E4S and E2 from Eberspaecher show how progress in electric cars isn’t always centered around the vehicle manufacturers themselves, but specialized components, much like lithium-ion batteries, that can make the technology more efficient, and someday, hopefully cheaper.

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Aaron Colter is a freelance writer and marketing consultant in Portland, Oregon. A graduate of Purdue University, he has worked for the NCAA, Dark Horse Comics, Willamette Week, AOL, The Huffington Post, Top Shelf Productions, DigitalTrends, theMIX agency, SuicideGirls, EarthTechling, d'Errico Studios and others. He is also the co-founder of, a free record label, recording studio, and distribution service for independent musicians.


  • Reply September 14, 2011

    Doug Weathers

    All ethanol is “bioethanol”. u00a0That’s a really dumb marketing term.nnEberspaecher has been making car furnaces for decades. u00a0We had one in our 1972 VW van that ran on gasoline. u00a0It worked fine.nnNevertheless, I wouldn’t want to worry about a second fuel source for my car heater. u00a0Just make the battery pack bigger, or accept a reduction in range when it’s cold. IMO. u00a0nnOf course I live in southern New Mexico and don’t have much use for a car heater anyway 🙂

  • Reply January 9, 2013

    Aadhya Mathur

    Din blog er ganske interessant jeg fandt det meget informative tak for udstationering om Bioethanol tilbud

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