Hi, I have a big dust filter in the basement which was sold with chains to suspend it and springs in series with the chains to damp the vibration. My air-to-air heat recovery ventilator in the attic included rubberized like straps which I used to suspend it. Both are pretty heavy units, take a little ingenuity to raise and mount but none of the vibration is transmitted to the house structure.
Usually though most of the vibration in my experience is in the cabinetry of the machine. It will be transmitted to something like a table top and, depending on that structure can be amplified. something really dense, a cementatious top or something like those marbleized counter tops would likely help. You might also look for some very dense rubber matting to bond to the walls of the unit particularly if they are steel. Just a few more thoughts. So long as the intake and outlet are kept clear heating shouldn't be a problem, the fan will drive that away. Plastic casing might get warm enough to distort I suppose. ----- Original Message ----- From: Bill Stephan To: [email protected] Sent: Tuesday, October 28, 2008 3:31 PM Subject: Re: [BlindHandyMan] An Acoustics question 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. [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
