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Clothes dryer heat recovery heat exchanger

Post in 'The Green Room' started by GaryGary, Feb 4, 2013.

  1. GaryGary

    GaryGary Feeling the Heat

    Joined:
    Jul 12, 2010
    Messages:
    291
    Loc:
    SW Montana
    Hi,
    I don't know the spin speed on our washer. Its a not too old Maytag Neptune, horizontal axis washer, so I suppose it has a higher spin speed than the older washers, but not sure how much.

    I was trying to think of some simple way to measure the spin rpm, but have not come up with anything -- any ideas?

    I would like to look into the separate spin extractors and/or a newer and higher speed spin washer.

    Seasoned Oak -- can you weigh a load as it comes out of the 1800 RPM washer, and then get the dry weight on the same load? We could compare this to the wet to dry load weight for my washer and maybe get some idea if my spin is low.

    Gary

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  2. woodgeek

    woodgeek Minister of Fire

    Joined:
    Jan 27, 2008
    Messages:
    2,714
    Loc:
    SE PA
    microphone on an oscilloscope?

    I will try to weigh a load before and after too.
    semipro likes this.
  3. Ehouse

    Ehouse Minister of Fire

    Joined:
    Jul 22, 2011
    Messages:
    936
    Loc:
    Upstate NY

    Automotive timing light?
  4. fossil

    fossil Accidental Moderator Staff Member

    Joined:
    Sep 30, 2007
    Messages:
    10,359
    Loc:
    Bend, OR
    Call Maytag? :rolleyes:
  5. Joe Rampey

    Joe Rampey New Member

    Joined:
    Dec 29, 2012
    Messages:
    20
    Loc:
    North Carolina
    Put up a clothes line(solar clothes drier)!
  6. Jaugust124

    Jaugust124 Feeling the Heat

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    Feb 14, 2010
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    371
    Loc:
    Mid-Hudson Valley, NY
  7. mole

    mole Member

    Joined:
    Oct 23, 2008
    Messages:
    159
    Loc:
    Western NY
    Gary,
    I think the pony is in the laundramat!! Just think of the possibilities!...You could use all that dryer heat to prewarm all the washing machine water. Hmmmm. Two heat storage tanks? One to prewarm the water? ...and solar hot water panels on the roof to finish heating the hot water in the second tank? Or a heat pump to top off the second tank that also provides AC to the building in the summer? The sheer number of dryers and frequency of use would probably justify a pretty nifty air to water hx design. With all your knowledge, you could probably design something wicked.
  8. Catfish Cleatus

    Catfish Cleatus New Member

    Joined:
    Feb 23, 2013
    Messages:
    11
    Loc:
    New Jersey
    Make the wife hang your underwear to air dry indoors during the winter and outside on the clothes line during the summer. Done, problem solved by a redneck with no complicated math and weighing wet clothes!! You guys are getting way too into this laundry business!! Get out there and css some cords of wood!! Just joking ya a bit... Good thread and you guys are some brainiacs.
  9. Ehouse

    Ehouse Minister of Fire

    Joined:
    Jul 22, 2011
    Messages:
    936
    Loc:
    Upstate NY

    There is/ was a laundromat near me that has done that for years, probably 20 or more.

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