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  1. #1


    Cooling Fans - Should They Suck or Blow?

    In our family room, we have a stand that houses the TV as well as the AVR and Blu-ray player. My concern is that the AVR doesn't have a lot of open space around it and that it will eventually cook itself. So, I need a cooling fan to keep the air moving around it. My only option, because of spacing, is to cut a hole and mount the fan to the back of the cabinet.

    I am looking at the AC powered temp controlled fans made by Cooler Guys.

    My main question is this. Should the fan be installed to suck the warmer air out from around the top of the AVR or should it blow cooler room air across it? Does it make a difference either way?

  2. #2
    Senior Member David Vaughn's Avatar
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    1 out of 1 members found this post helpful.
    Tracy,

    The key is airflow. If you have an open area that the fans can "suck" new air in, then blowing "out" is OK. You just want to recycle the air in the unit.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

  3. #3


    Thanks, David. I was thinking that it really shouldn't matter but wanted to hear from someone else.

    I'm most likely going to order the smallest AC-powered, temp-controlled one that I can find.

  4. #4
    Moderator jerrich's Avatar
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    Hope you find one you can't hear.
    JR

  5. #5
    Senior Member David Vaughn's Avatar
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    1 out of 1 members found this post helpful.
    Tracy, look at the dB levels of the fans. I got some ultra quiet ones that were more money, but well worth it. All bought from Cooler Guys.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

  6. #6
    Senior Member old dust's Avatar
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    Here is the place i got the fans for my PC ,top of the line they will last for years. but they only go up to 24 v. Using a larger size they run at a slower speed and are quieter.
    http://noctua.at/en/products/fan
    Last edited by old dust; 08-18-2017 at 07:56 PM.
    [SIGPIC]

  7. #7


    Quote Originally Posted by old dust View Post
    Here is the place i got the fans for my PC ,top of the line they will last for years. but they only go up to 24 v. Using a larger size they run at a slower speed and are quieter.
    http://noctua.at/en/products/fan
    Thanks for the link. However, I need an AC-powered fan. I suppose I could get a power adapter but that sounds like a research project.

  8. #8
    Senior Member David Vaughn's Avatar
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    1 out of 1 members found this post helpful.
    Quote Originally Posted by Tracy Rainwater View Post
    Thanks for the link. However, I need an AC-powered fan. I suppose I could get a power adapter but that sounds like a research project.

    Tracy,

    These are the fans I'm using (https://www.coolerguys.com/collectio...mm-premium-fan). I have three installed in my rack. Here is the power supply that I used: https://www.coolerguys.com/collectio...al-control-kit

    I also ordered some extension cables to attach the fans to the control module (my rack is pretty wide since it's a custom built in). All told, it cost about $100 or so and was well worth the investment. In hindsight, I sometimes wish I spent more for a controllable thermostat so I could set when it turned on and off versus the "standard" kit that has it preset. Regardless, it's not a big deal since the fans are virtually silent.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

  9. #9


    Thanks, David.

    I was looking at a single fan kit that has the thermal controller and power supply together. I'll have to see what the differences are in it and what you installed.

    https://www.coolerguys.com/collectio...mal-controller

  10. #10
    Senior Member David Vaughn's Avatar
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    The only thing I worried about with that fan was the noise factor. Look up the specs. If you're across the room, it's not a big deal, but I'm only about 8 feet from my equipment and I wanted it as quiet as possible.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

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