They should be replaces every 5 years to ensure energy savings.
67:14.
When did you last clean it out. It should be drained and cleaned at least every 3-4 years.
20 years at least, provided the hot water heater is serviced and maintained by a plumber once a year.
Commercially canned corn should last up to three years.
Water,
100 years
well over the last 50 years 99 treaties have been negotiated
Well i should last about 3-10 years. Depends on how you treat it really. But you should look after it so your looking at 6 years tops.
No, undercoating should last for years.
With Gas (natural, propane, etc) fired - 12 to 15 years Electric water heater - 16 to 20 years The real key to making a water heater last is to drain it once every year. This gets all the sediment out of the bottom which will prevent eventual rusting and eventually, leaks.
A lot depends on your water. Different brands have differing quality. Some are more repairable than others. But on average, I would say between 7 and ten years.