Thanks Dale, suspending the thing might be a good plan. 


Bill Stephan, 
Kansas City MO 
Email: [EMAIL PROTECTED]  
Phone: (816)803-2469

-original message-
Subject: Re: [BlindHandyMan] An Acoustics question
From: Dale Leavens <[EMAIL PROTECTED]>
Date: 10/27/2008 22:27

Just a couple of thoughts,

Have you thought of suspending the unit from the roof on some appropriately 
sized bungee cords? Four eye hooks in the roof a little beyond the sides of the 
machine for the top hooks to fit into then the other ends hooked over the 
bottom of the dehumidifier cabinet. this will isolate any vibration. 

You might like to get it off of a table too. The colder air is nearer the floor 
and this will be more thoroughly saturated with water. Once the air is passed 
through the coils and heated by the compressor it is drier and will rise. thus, 
the lower the machine, the more natural convection and possibly the more 
efficiently it will dry the air. If this means it sits on a concrete floor a 
loas of your vibration noise will go away.


  ----- Original Message ----- 
  From: William Stephan 
  To: [email protected] 
  Sent: Monday, October 27, 2008 9:59 PM
  Subject: [BlindHandyMan] An Acoustics question


  As those of you who have them will doubtless understand, dehumidifiers are
  infernally noisy. The table I have mine on is delaminating. I don't know
  if it got wet at some point, or if the dehumidifier's just vibrating it to
  death. In any case, my next adventure is going to be to build a replacement
  table.

  I'm almost done with the shop vac silencing cabinet, and as usual, I bought
  too much acoustical tile. So, the plan is to make a table with a floor,
  roof, and two sides, and line all four surfaces with acoustical (or is that
  just acoustic) tile in the hope it will quiet things down some.

  So, my question:

  If I just have the tile on the floor of this box, the dehumidifier will very
  quickly vibrate it's way through it, and the wheels will touch the tabletop.
  So, would it be better from an acoustics standpoint to remove the wheels and
  have the whole surface of the bottom of the unit setting on the acoustic
  tile, or should I put something like a piece of ΒΌ inch plywood under the
  wheels, it would most likely have to be the same size as the tabletop itself
  to keep from sinking. 

  I know we have some folks who know way more than I about how sound actually
  travels, so I'll quit now and hope they give some suggestions/answers.

  Thanks in advance.

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