Laboratory Sound Testing 80% Furnaces dBA York 33" TG 80% 60,000 61 Trane TUE1A010A9241AA 65 Lennox PLB 91454 SAH6CN9H 67 Carrier 58STA070-12 68 Goodman GHS80704BHA 70 ICP N8MPN050B12B1 70 Rheem 80PJ05EAR01 70 Tested using a handheld sound meter, from 5 feet in front of furnace, at waist height, when operating, measuring sound pressure - single stage models.