Good points there, but a quick heads-up from experience:
- Flushing and anode rod swaps can definitely extend life, but once rust starts showing up, it's usually a sign corrosion's already underway inside.
- Keep an eye out for leaks or dampness around the base—rusty water can be an early warning.
- If you're pushing past 10-12 years, I'd at least start budgeting for a replacement. Better safe than dealing with a flooded basement on a Sunday morning... been there, done that, not fun.
Totally agree, rust is usually a bad sign. But before jumping straight to replacement, I'd suggest checking the pressure relief valve too—sometimes corrosion there can mimic bigger issues. Still, after 12 yrs, you're probably on borrowed time anyway...
"Still, after 12 yrs, you're probably on borrowed time anyway..."
True, age is definitely a factor, but I'd caution against immediately assuming replacement is necessary based solely on rust or age. A few years back, my heater showed rust around the fittings, and I thought it was done for. Turned out it was just surface corrosion from condensation—cleaned it up, replaced a couple fittings, and it's still going strong. Definitely inspect thoroughly first; sometimes the issue looks worse than it actually is.
Yeah, good point about checking thoroughly first. I've had a couple heaters go past the 15-year mark without any major issues—just minor rust spots here and there. Usually, if it's just surface rust, sanding it down and repainting with some rust-resistant paint can buy you a few more years. But if you're seeing deeper corrosion or leaks, that's when I'd start budgeting for a replacement. Better safe than sorry...water damage is no joke.
Had a heater once that looked like it was just surface rust, sanded and painted it like you mentioned. Worked fine for about a year, then started leaking from underneath—turns out corrosion was way deeper than it seemed. Sometimes rust is sneaky...just saying, keep an eye on it.
