Question 1

How long do water heaters last?

Accepted Answer

Tank heaters: 8-12 years. Tankless: 15-20 years. Maintenance extends lifespan significantly.

Question 2

What temperature should I set my water heater?

Accepted Answer

120°F is the sweet spot—hot enough to kill bacteria, low enough to prevent scalding and save energy.

Question 3

Can I repair a leaking water heater?

Accepted Answer

If it's a fitting or the relief valve, yes. If the tank itself is leaking, no—the tank has corroded and needs replacement.

Question 4

Is it worth repairing an old water heater?

Accepted Answer

If it's over 10 years old, major repairs rarely make sense. The payback period exceeds the remaining lifespan.