I have much higher expectations than most.
REFRIGERATOR: We elected to replace our refrigerator when it was 27 years old because it started sounding like it was getting tired. it was a Montgomery Ward made by Frigidaire. It's replacement is now 6 years old, a Kenmore made by LG.
STOVE: Our stove/oven/microwave were all one unit so when the microwave died after 21 years, we had no choice but to replace it even though the oven and stove worked just fine. It was a Litton. The GE replacement is 16 years old, uses commonly interchangeable parts that are inexpensive, I don't anticipate ever having to replace that. I sold my parents house with the original 53 year old Westinghouse stove and oven (they were stand alone units)
MICROWAVE (actually, a MICROHOOD): As i stated above, our Litton died after 21 years. It's replacement died after just 5 years. A circuit board that cost $200 failed, not counting the labor to put the board. It was a GE and a brand new identical GE cost $205. It was removed during a remodel and we now have a Sanyo drawer microwave. It is now 2 years old. The warranty on it is 10 years, so I expect it to last longer than that.
DISHWASHER: I don't remember what brand the original was, but it was contractors grade and died at age 12. The replacement MAYTAG lasted 10 years until it started SLOWLY leaking through a cracked seal and destroyed the kitchen floor by the time the leak was discovered. The replacement BOSCH was super quiet, and was removed during a remodel after 12 years because sooo many plastic pieces had broken off, that the racks didn't want to stay on their tracks, and a number of pieces of the rack had lot their plastic coating and the metal underneath was rusting. The replacement Whirlpool is 2 years old.
WASHING AND DRYER. Just depends on how much you use them. Our first Whirlpools lasted 21 years. Their replacements lasted just 7, but most of their lives, because of our kids and sports clothing, they were being used for 30 to 35 loads a week. They were replaced 3 years ago with LG's with warranties on parts of them for 10 years. I expect them to last at least that long, especially since we normally do 6 loads a week now.
CENTRAL HEAT AND AIR. Well my parents Lennox system was still functioning when I sold their house 3 years ago, and they were 53 years old then. The new owner did a top to bottom remodel and decided not to replace them, so they are humming along at 56 years of age. My Trane system is 25 years old, it replace a contractor grade Rheem that lasted 14 years. I have it serviced twice a year. My service guy says not to expect that kind of life from any of even the best units made these days. Too many delicate electronics on them. He adds, even with the much lower energy use of the new units, it will be cheaper to fix my old unit than replace it.
Don't ask about cars. My family car will be 29 years old in October, and I am about to take my 51 year old car out for a spin.
