The quietest furnace you can buy (G71P)
Based on sound pressure levels during steady-state, high-fire operation of Lennox G71P-36B-070 and leading competitive units at midpoint temperature rise and minimum external static pressure when set up per Section 4.5.3 of ARI 260.
The quietest furnace in its class (G60V)
Based on sound pressure levels during steady-state, high-fire operation of Lennox G60UHV-36A-070 and leading competitive units at midpoint temperature rise and minimum external static pressure when set up per Section 4.5.3 of ARI 260.
The most quiet and efficient central air conditioner and heat pump you can buy (XC21/XP19)
A combination of sound ratings established per ARI's test standard: 270; and efficiency ratings established per ARI's test standard: ANSI/ARI 210/240-2005.
The quietest central air conditioner or heat pump you can buy (XC15/XP15)
Air conditioners/heat pumps have sound ratings established per ARI's test standard: ARI 270. Size for size, as a product family, these air conditioners/heat pumps have the lowest published sound ratings of any major U.S. brand of air conditioning/heat pump equipment.
