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Technical Heater fan

Discussion in 'The Hokey Ass Message Board' started by GARY T., Oct 27, 2017.

  1. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

    chryslerfan55 likes this.
  2. jcmarz
    Joined: Jan 10, 2010
    Posts: 4,636

    jcmarz
    Member
    from Chino, Ca

    Bandit Billy likes this.
  3. A computer fan is too small and doesn't move enough volume of air to work as a heater blower fan. Ask me how I know that.
     

  4. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

     
  5. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

    The fan I have now that just died is only 4 blades and fan is only about 5" in diameter. It's some kind of old small heater
     
  6. Davyj
    Joined: Jul 11, 2011
    Posts: 442

    Davyj
    Member

    I adapted a squirrel cage fan and motor from a late model into the Stewart Warner heater on our 38 Chev, I had to cut a hole in the heater body for about an inch of motor that protruded.....but it works way better than the four blade that was there.
     
  7. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

    image.jpeg
     

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  8. mr.chevrolet
    Joined: Jul 19, 2006
    Posts: 6,895

    mr.chevrolet
    Member

    Gary's one of the few guys I know in W.Pa. that actually needs a heater in his rod. he & Doug R.
     
  9. gene-koning
    Joined: Oct 28, 2016
    Posts: 2,031

    gene-koning
    Member

    NAPA used to have a source to order a heater motor pretty much to your spec, there were 50 motors to choose from (something probably not available anymore, but would be worth checking). I found the biggest issue is getting the blades/cage off the motor without killing it.
    The old heater box I have has a motor with 2 parts in the housing, one section had a small cage, and the other section had a 4 blade fan. The motor has bad wiring, and the supposed replacement motor has the wrong shaft size. Then I discovered that box wouldn't fit in my truck!

    I'm adapting a modern blower motor to my homemade heater box that will contain just some ducting and a core. Will have a 2 speed fan forcing air through the defroster, with or without floor heat, a coolant flow valve to control the temp, and a way to shut it off completely. Gene
     
  10. woodhawg
    Joined: Apr 11, 2009
    Posts: 1,019

    woodhawg
    Member
    1. S.F.C.C.

    What's a heater??
     
  11. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

    I believe I have another fan motor here somewhere. Just thought maybe o computer fan would blow more air. Some of them are about 5-6” with 7 blades and 3000 rpm. Just wondered if anyone is using one. They come in 12 volt dc
     
  12. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,985

    GARY T.
    Member
    from S.W. Pa

    What size did you use?
     
  13. Blake 27
    Joined: Apr 10, 2016
    Posts: 668

    Blake 27

  14. upspirate
    Joined: Apr 15, 2012
    Posts: 2,213

    upspirate
    Member

    There are different sizes and outputs of computer fans....I'm sure one of the bigger ones should work.
    Not real sure, but there are some with cooling coils for the high power gaming computers,wonder if those could be plumbed to the cooling system to make a heater
     
  15. 41 C28
    Joined: Dec 17, 2005
    Posts: 1,772

    41 C28
    Member

    I would think a pc fan would be better than nothing. It would depend if you were trying to warm up a coupe or a sedan.
     
  16. blue 49
    Joined: Dec 24, 2006
    Posts: 1,275

    blue 49
    Member
    from Iowa

    I'm using one, about 4". It works good but I made my own tube and fin heat exchanger that is a lot less restrictive than a regular heater core.

    Gary
     

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