Rheem Water Heater Leaking: What the 6- vs 12-Year Warranty Pays
A Rheem tank leaks at year 8 and the plumber quoted a new one. How the 6-, 9- and 12-year terms and each quote line set your bill.
The short version: A Rheem tank that leaks at year 8 is past its term on a 6-year model, so the whole quote is yours. On a 9- or 12-year model Rheem sends a whole replacement heater, not a pro-rated credit, but the rest of the plumber’s quote stays with you and the new heater keeps only the years the old tank had left.
Why it matters: Where the leak falls on the tank’s clock flips it. In the first 1, 2 or 3 years Rheem pays the labor too, past year 6, 9 or 12 it pays nothing, and the full term only runs for the original owner in a single-family home.
Rheem’s product page for its 12-year gas tank says “12-Year limited warranty for tank and parts, 3-year full in-home labor warranty.” The certificate behind that page puts the same twelve years as “three (3) years of Full Warranty coverage followed by nine (9) years of Limited Warranty coverage.” A tank that starts leaking at year 8 is in the nine.
Limited, in this certificate, means a heater. If the tank leaks, Rheem provides a replacement water heater, and the plumber’s work to take the old one out and put the new one in is not part of that. The 6- and 9-year tanks work the same way with smaller numbers.
So the question on a wet floor is which clock the tank is on and how far along it is. The rating label on the side of the tank and the date you bought it answer most of that, which is why the old tank, label and all, stays in the house until the claim is set up.
The termSix, Nine or Twelve Years, Counted From the Receipt
For a tank in a single-family home, the three certificates split their years like this. The 6-year is 1 full year and 5 limited, the 9-year is 2 and 7, and the 12-year is 3 and 9. Tank and parts carry the same term, and gas and electric models share the same certificates.
Find your column first, then where the full years end.
The clock starts on the date the original owner bought the heater, if that date is documented. Without a receipt or invoice, Rheem counts from the manufacture date plus 30 days, so a receipt can add months to the term.
On Rheem’s current product pages, the two digits after the size code in the model number match the warranty years, XG50T06 for a 6-year and XG50T12 for a 12-year. I saw that on four pages, not in any decoding rule Rheem publishes. Rheem’s Warranty Verification on rheem.com, or its claims line at (866) 279-4566, confirms the term from the complete model number, the complete serial number and the purchase date.
Two things sit outside the clock. The warranty is for the original owner only and isn’t transferable, so a heater that came with the house has no Rheem coverage. And if the heater is installed anywhere other than a single-family dwelling, all three certificates drop to one year of limited coverage. There’s no registration step in these certificates, and the clock runs without one.
Your quoteWhat Rheem Sends and What Stays on the Quote
Inside the full years, Rheem adds “all labor and in-home service we determine is necessary” to replace a leaking tank. After them, the 12-year certificate says the limited warranty “does not cover any labor expenses for service, repairs, reinstallation, permits, or removal and disposal of the failed water heater.” Rheem pays to ship the replacement to a delivery point it picks, such as a local Rheem retailer, and the local freight from there is the owner’s too.
Two other kinds of lines don’t move with the term. Rheem excludes trips to bring an installation up to local code, so an expansion tank, drain pan or new connectors are yours to count unless Rheem confirms otherwise. A “warranty handling” or claims fee is the plumber’s charge, and the certificate says Rheem doesn’t receive or reimburse fees like that.
Say a plumber quotes a 50-gallon gas tank swap with a Rheem heater at $1,000, install labor $700, removal and haul-away $75, a $100 permit and $175 in code parts, $2,050 in all. On the 8-year-old 6-year tank, the term ran out two years ago and every line is the owner’s. Put the same tank on a 12-year certificate and Rheem covers the $1,000 heater line, leaving the install side, $1,050, with the owner.
That replacement doesn’t arrive with a fresh twelve years. The certificate warrants it “only for the unexpired portion of the original unit’s Applicable Warranty Period,” so the 12-year tank that leaked at year 8 is replaced by a heater with 4 years left on it.
The new heater picks up the old tank’s clock where it stopped.
Paying more changes that. If rules require the replacement to have features the old tank didn’t, Rheem charges the price difference for them, and an owner who pays a difference like that, or pays to upgrade size or features, gets a complete new limited warranty with the full term.
The calculator takes your tank’s term and age and each line of your own quote, and shows that quote under all three terms at once.
What does your Rheem water heater quote cost you?
Enter the years since purchase, rounded up, and each line on your plumber's quote. No receipt? Count from the manufacture date plus 30 days.
What you pay on the quote you entered under each Rheem term, at the age you entered.
If your result doesn't match your bill or notice, check the exact figure on Rheem's 12-year limited warranty certificate. Rules as of 2026-11-08
Show the breakdown and basis
You pay = every line on the quote minus what Rheem covers. Rheem covers the heater line while the tank is inside its term (6, 9 or 12 years in a single-family home, 1 year limited anywhere else), plus install labor inside the full years (1, 2 or 3). The term counts from the documented purchase date, or the manufacture date plus 30 days, for the original owner only. A replacement heater carries only the years left on the original term.
Values are calculated in your browser and are not saved or sent anywhere.
Checked against Rheem’s certificates and product pages on Nov. 8, 2026.
The Old Tank Is Part of the Claim
If the quote includes haul-away, the timing of that line matters. Rheem’s claim runs on the failed heater “with the rating label and all the component parts intact,” or, at Rheem’s option, the complete original rating label, and “photocopies are not acceptable.” Rheem also asks for the model and serial number of the heater that replaced it and the date the old one failed.
The certificate’s order is Warranty Verification or the claims line first, to confirm the heater is in warranty, and then, if it is, the plumber or contractor who installed it. A tank that goes to the scrap pile before then takes its label along, and units with the rating label removed are on Rheem’s exclusion list.
The 6-year certificate I went by is the copy Home Depot hosts with its product documents; its terms match Rheem’s own 6-year product page. The 9- and 12-year certificates are the ones Rheem links from its product pages. Tankless, heat pump, Marathon and Professional Classic heaters have certificates of their own, and Canadian labor terms differ, so none of this carries over to them.
The wet subfloor is a separate bill. Rheem’s certificate excludes damage from water leakage outright.
Photos and icons in this post are illustrations made for explanation; they do not show real places, products or people.
