vapor barrier question
Might help insulate them...... from cold/hot. Stuff them with drywall after isolating them with foam, you don't want conducted sound. Check pipe touching bottom plate/top also, should be clear (other than fire-stopping foam between floors) everywhere but to the fixture. Pad the hangers, especially if suspended from an engineered floor system. If needed, I'd use rubber blocks under washer/dryer, under garage door opener fasteners, rubber mat under/behind microwave/computer printer/refer motor, felt tips on chair bottoms/door stops/cabinet doors, and sound board around the built-in dishwasher (my next one's a Bosch...lol). I even added dabs of silicon on the nail guns for work....................................... for lowering them on air hose to concrete slab... made you think for a minute on that one??
Clothes taking longer to dry?
Clean the dryer screen in HOT water if using fabric softener sheets.
They leave a residue that impedes air-flow, costing you money.
Clean the ducting in the last six months? 17,000 dryer fires annually!