Quiet Batt®
The shipment arrived today and half the batts Quiet Batt® are now in place on two walls and the concrete floor. Just wanted you to know that your sound deadening batts have already substantially reduced the furnace noise in the house. The noise level is really muffled and certainly not intrusive any longer... so I'm thinking I may not even install the rest of it as it needs to be suspended. Have another test to do, but we are very pleased with your recommendation so far. My guess is that since the batts are exposed inside a excessively large cold air return chamber where the air is not filtered, dust will probably accumulate over time, but with the pleated furnace filter being the next stage for air flow I'm sure the filter will trap it. If it becomes too dusty I'll consider it a bonus and it will probably add to the noise absorbing qualities. Just kidding. As you know living in the desert southwest, people learn to live with dust, unlike Chambersburg.
~ G. Palmer, AZ