What is an Enthalpy Wheel?

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An Enthalpy Wheel is a type of Energy Recovery Ventilator (transfers both heat and sensible energy) that uses a rotating air permeable energy exchanger to transfer outgoing temperature and humidity (energy) to the incoming outdoor air. The energy exchangers are generally made of porous materials to increase surface area which aids in energy transfer. For sensible energy transfer, also called humidity, a desiccant such as Silica Gel or other molecular sieves are added to the device.

Here are some seductive photos of enthalpy wheels… and a nice diagram below to help explain how they work!

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This entry was posted on Tuesday, March 25th, 2008 at 2:32 am and is filed under Products. You can follow any responses to this entry through the RSS 2.0 feed.

3 Responses to “What is an Enthalpy Wheel?”

  1. Fernando Velez says:
    November 17, 2008 at 5:00 pm

    Would like to know about the maintenance to an Enthalpy wheel.

  2. john bland says:
    November 26, 2008 at 3:14 am

    What do you think about a energy recovery unit exhausting toilet/bathroom air.(enthalpy wheel in ERU)

  3. Mike Sullivan says:
    January 6, 2010 at 10:16 am

    Do you suppose the enthalpy wheel could be powered directly by a wind generator or would it be more efficient with it’s own motor?

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