Quest Hi-E Dry 195 Muffler Kit 4039075. Quieter Running Without Losing Pints

What the Quest Hi-E Dry 195 Muffler Kit Does The kit is a pair of white formed metal panels, angled and octagonal in outline, drilled for mounting on the Hi-E Dry 195 cabinet. It is Quest part 4039075, an accessory for the 195 alongside the duct collar kit and the replacement filter. The 195 is the big floor unit of the Hi-E Dry line, PN 4036710, rated at 195 pints a day at 80 °F and 60 percent humidity. It moves 610 CFM through a 2 in MERV 11 filter, and it draws 1,385 W on a dedicated 20 A circuit. Most of what a grower hears from it is that blower. The muffler panels sit on the air path to take the edge off it. It cuts noise from the Hi-E Dry 195 without taking anything away from performance. The pint rating stays the same. Air enters the 195 at the top and leaves at the side, and it needs a foot of clearance from walls at both openings. The panels mount to the cabinet, so that clearance is still what it was once the kit is on. The kit is a retrofit for a 195 installed near people who have to work beside it all day. A dry room next to a trim bench, a basement grow under a bedroom, a greenhouse head house with a desk in it. The 195 weighs 130 lb and stands 42 in tall, and nobody moves one to get away from the sound. The kit is the lighter answer. It ships at about 4 lb. Dehumidifier Noise Reduction in a Grow Room, Beyond the Muffler Dehumidifier noise reduction starts with the blower and ends with the floor, and the muffler panels only cover the first part. Vibration isolation under the 195 keeps operational vibration and noise down. A rubber pad or a set of isolation feet under the cabinet stops the hum from travelling through a slab into the next room. Keep the top inlet and the side outlet a foot clear of walls, since air whistling past an obstruction is a noise of its own. A ducted 195 is quieter in the room it serves because the machine sits elsewhere. The duct collar kit is the way to do that, and the runs should stay short. Duct up to 25 ft total wants a 12 in intake. A return choked down to a smaller duct raises the pitch of the blower as it works harder. Change the pleated filter on schedule. A loaded filter makes the fan pull against resistance, and a fan under strain is both louder and less efficient. Set the humidistat so the unit cycles on a sensible band rather than hunting. A compressor that starts every few minutes is heard every few minutes. Fit the muffler panels with the unit powered down and the filter out. Run the machine for a minute afterwards and listen for a panel that buzzes. A buzz means a loose fastener, not a bad kit. Measure before and after with a phone app at the same spot and the same fan state. Then the change is a number rather than an impression. The complaint from the office then has a figure attached to it. Key Features Two formed metal panels: White, angled, drilled for mounting on the Hi-E Dry 195 cabinet. Quieter operation: Reduced noise without compromising performance. No pints lost: The 195 keeps its 195 pint a day rating with the kit fitted. For the Hi-E Dry 195: Quest PN 4036710, the floor model of the Hi-E Dry line. Quest 195 accessory: Part 4039075, alongside the duct collar kit and the filter. A retrofit: For a 195 installed near occupied work areas. Quest part 4039075: About 4 lb boxed. Technical Specifications Specification Value Brand Quest Part number 4039075 Type Muffler kit, noise reduction panels Contents Two formed metal panels with mounting holes Fits Quest Hi-E Dry 195 (PN 4036710) Host unit 195 pints/day at 80 °F / 60% RH; 610 CFM; 1,385 W; 2 in MERV 11 filter Effect on capacity None Shipping weight About 4 lb