How the verdict is worked out
A repair is worth it when it buys enough extra years. So the calculator divides the repair quote by the years it would give, and the price of a new one by its expected life, and compares the two costs per year of use.
A new one’s life is a range, so its cost per year is a range too. If the repair costs less per year even when a new one lasts the longest, it says repair; if a new one costs less even at the shortest life, it says replace. In between it is a close call, and the break-even shows how long a new one would need to last.
The lifespans come from two named sources and are shown as the range between them. Both are US figures for typical use, so treat them as a rough guide. Neither covers phones, laptops or bikes, so for those we ask you instead of guessing.
Typical life of a new appliance, in years| Item | Range used | NAHB 2007 | InterNACHI chart |
|---|
| Washing machine | 5–15 years | 10 (Washers) | 5 to 15 (Washing Machine) |
|---|
| Clothes dryer (tumble dryer) | 13 years | 13 (Dryers, Electric; Dryers, Gas) | 13 (Dryer (clothes)) |
|---|
| Dishwasher | 9 years | 9 (Dishwashers) | 9 (Dishwasher) |
|---|
| Refrigerator, full-size | 9–13 years | 13 (Refrigerators, Standard) | 9 to 13 (Refrigerator) |
|---|
| Refrigerator, compact | 9 years | 9 (Refrigerators, Compact) | not listed |
|---|
| Freezer | 10–20 years | 11 (Freezers) | 10 to 20 (Freezer) |
|---|
| Electric range or cooker | 13–15 years | 13 (Ranges, Electric) | 13 to 15 (Electric Range) |
|---|
| Gas range or cooker | 15–17 years | 15 (Ranges, Gas) | 15 to 17 (Gas Range) |
|---|
| Microwave oven | 9 years | 9 (Microwave Ovens) | 9 (Microwave Oven) |
|---|
| Range hood (cooker hood) | 14 years | 14 (Range/Oven Hoods) | 14 (Range/Oven Hood) |
|---|
| Food waste disposer | 12 years | 12 (Disposers, Food Waste) | 12 (Disposal (food waste)) |
|---|
| Trash compactor | 6 years | 6 (Compactors) | 6 (Compactor (trash)) |
|---|
| Dehumidifier | 8 years | 8 (Dehumidifiers) | 8 (Dehumidifier) |
|---|
| Water heater, electric tank | 6–12 years | 11 (Water Heaters, Electric) | 6 to 12 (Water Heater (conventional)) |
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| Water heater, gas tank | 6–12 years | 10 (Water Heaters, Gas) | 6 to 12 (Water Heater (conventional)) |
|---|
| Window or room air conditioner | 5–10 years | 10 (Air-Conditioners, Room) | 5 to 7 (Air Conditioner (window)) |
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| Central air conditioner | 7–15 years | 10–15 (Air Conditioners (HVAC section)) | 7 to 15 (Air Conditioner (central)) |
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| Gas furnace | 15–25 years | 18 (Furnaces, Warm-Air, Gas) | 15 to 25 (Furnace) |
|---|
| Heat pump | 10–16 years | 16 (Heat Pumps) | 10 to 15 (Heat Pump) |
|---|
| Garage door opener | 10–15 years | 10–15 (Garage Door Openers) | 10 to 15 (Garage Door Openers) |
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