This is the reference page to bookmark: every major appliance and home system, with its typical lifespan in years, in one chart. Kitchen, laundry, water heating, cooling and home heating are all here, because the question “how long should this last?” gets asked about all of them — usually on the day one of them stops working.
The chart gives you the expected life. What to do with that knowledge — when to budget for a replacement, when a repair is still worth paying for, and how to spot the end coming — is covered in the companion guide, How Long Do Appliances Last?, which works through the decisions appliance by appliance.
The appliance lifespan chart
| Appliance or system | Typical lifespan (years) |
|---|---|
| Refrigerator | 12–15 |
| Freezer | 15–20 |
| Dishwasher | 9–13 |
| Oven/range | 15 |
| Microwave | 9 |
| Extractor hood | 14 |
| Waste disposal unit | 8–12 |
| Washing machine | 10–13 |
| Tumble dryer | 13 |
| Water heater (tank) | 8–12 |
| Water heater (tankless) | 20 |
| Air conditioner | 15–20 |
| Heat pump | 15 |
| Furnace | 15–25 |
| Boiler | 15–25 |
| Dehumidifier | 8 |
Two patterns stand out. Anything that heats water or sits in it — tank water heaters, dishwashers, waste disposal units — lives shortest, because heat, water and scale are a punishing combination. Anything that simply heats or moves air — furnaces, boilers — lives longest, provided it is serviced. The middle of the chart is where most kitchen and laundry appliances sit: a decade to fifteen years of ordinary service.
How to read this chart
These figures are averages for typical use: a family household, ordinary maintenance, no heroic servicing and no neglect. They describe the middle of a wide spread, not a promise. Two identical washing machines can finish five years apart, and both outcomes are normal. Use the ranges to plan — to know which machines in your home are young, which are mid-life and which are living on borrowed time — rather than to predict the week something will fail.
Local conditions move the numbers as much as the badge on the door. Hard water shortens water-heater life, sometimes by years, because scale coats the element and the tank corrodes faster; heavy family use shortens washer life, since a machine doing ten loads a week ages in cycles, not birthdays. Run the pattern the other way and a well-maintained premium appliance, serviced on schedule and repaired promptly, often beats the top of its range. The chart is the starting point; your water, your household and your maintenance habits set the real figure.
Signs a system is near the end
Whatever the appliance, the end announces itself in similar ways. Watch for:
- Rising energy bills — an ageing motor, element or compressor works harder for the same result, and the meter notices before you do.
- Repairs in consecutive years — one repair is maintenance; a second and third in quick succession is a pattern, and patterns on old machines rarely reverse.
- Rust or leaks on water systems — corrosion is one-way. A weeping tank or rust-stained fittings mean the metal itself is finishing, not just a part.
- Uneven heating or cooling — rooms that no longer reach temperature, or a fridge warm at the top and freezing at the bottom, point to a system losing capacity it will not regain.
When two or more of those signs stack up on the same machine, run its numbers in the Repair vs Replace Calculator before paying for another repair — it weighs the quote against the appliance’s age and what a replacement costs. For heating and cooling systems, the Heating Cost Calculator shows what the old system’s inefficiency is adding to each year’s bills, which is often the figure that settles the argument.
Keep this chart somewhere you can find it on a bad day — the day the boiler fails or the fridge warms up is the wrong day to research lifespans from scratch. Note the age of each big appliance when you buy it, file the receipts, and when one starts showing the signs above, the Repair vs Replace Calculator turns the chart’s averages into a decision for your actual machine.
Frequently asked questions
What is the average lifespan of appliances overall?
Roughly 10–15 years for most major appliances. Kitchen workhorses sit at the lower end — dishwashers and microwaves around a decade — while heating systems and tankless water heaters run longer, with furnaces and boilers passing twenty years.
What lasts longer, a tank or tankless water heater?
Tankless, by a wide margin — about 20 years against 8–12 for a tank model. A tank spends its life holding hot water, which corrodes it from the inside; a tankless unit heats on demand and has replaceable parts that extend its working life.
Do appliances really die at these ages?
No — these are averages, not expiry dates. Individual units vary widely: a lightly used, well-maintained appliance in a small household can beat the top of its range, while a hard-worked one in a big family can fail years earlier.
Is it worth repairing a 12-year-old fridge?
Usually only a cheap repair. Twelve years puts the fridge inside its 12–15-year window but near the end of it, so a small fix that buys another year or two makes sense while a major repair rarely does. Run the repair-vs-replace numbers before deciding.
Averages only — keep receipts and service records; they decide real cases, not charts.