Gas water heater installations from 72 Degrees carry two layers of protection: the manufacturer’s warranty on the tank and components, and our own workmanship warranty on the installation. Specific terms depend on the model you choose, so we go through them with you before you buy.

The Two Warranties, and Why Both Matter

Manufacturer warranties on gas water heaters typically cover the tank itself against leakage for a set number of years, with a separate and often shorter term on parts like the gas valve, thermostat, and burner assembly. Premium models carry longer terms; builder-grade units carry the minimum.

Here is the part that catches people: almost no manufacturer warranty covers labor. If a tank fails in year six of a nine-year warranty, the manufacturer sends a replacement tank. Someone still has to drain the old one, disconnect the gas and water, haul it out, set the new one, and re-pipe and re-vent it. That labor is on you unless the installing company covers it.

Our workmanship warranty covers our work — the gas connection, the water connections, the venting, the seismic and code requirements, the expansion tank, the T&P discharge line. If any of it was done wrong, we fix it at no charge.

What Actually Voids a Water Heater Warranty

Manufacturers deny more claims than homeowners expect, and the reasons are consistent:

  • No expansion tank on a closed system. If your home has a check valve, a backflow preventer, or a pressure reducing valve, thermal expansion has nowhere to go. Pressure spikes stress the tank, and manufacturers will deny the claim if the required expansion tank was never installed.
  • Improper venting. Wrong diameter, wrong slope, or a shared vent that does not meet spec.
  • Missing maintenance. Most warranties require periodic flushing and anode inspection. No documentation, no claim.
  • Unlicensed installation. Many warranties are void outright if a licensed contractor did not perform the install.

We handle all of these as standard practice, and we document the install, which is what you need if you ever file a claim.

Hard Water Is the Real Enemy Here

Hill Country water carries a heavy mineral load, and that has a direct effect on how long your water heater lives regardless of what the warranty says.

Calcium and magnesium precipitate out of heated water and settle as a layer of scale on the tank bottom — exactly where a gas burner applies its heat. That layer insulates the water from the flame, so the burner runs longer to reach temperature, the steel overheats, and the tank fails early. It is also why a neglected heater starts popping and rumbling: that is steam bubbling up through sediment.

Annual flushing removes it. A water softener prevents most of it from forming in the first place, and in genuinely hard water it will extend tank life more than any warranty term will ever help you.

Keeping Coverage Alive

The anode rod is the component almost nobody checks. It is a sacrificial metal rod that corrodes so your tank does not. Once it is consumed, the tank starts corroding instead — and that clock runs fast. Checking it every few years and replacing it when spent is cheap insurance that most manufacturers technically require anyway.

Scheduled water heater maintenance handles flushing, anode inspection, T&P valve testing, and combustion checks in one visit. Members of our Care Club maintenance plan get it on schedule with documentation, which keeps warranty coverage defensible.

Repair, Replace, or Upgrade

When something does go wrong, we are candid about which path makes sense. A gas valve on a four-year-old tank is a straightforward water heater repair. A leaking tank at year eleven is a water heater replacement, and repairing it is throwing money away.

If you are replacing anyway, it is the natural moment to consider tankless water heaters, which carry longer warranties and last considerably longer when the water is treated — and to have the gas line checked for adequate capacity, since tankless units demand far more than a tank unit does.

For the exact warranty terms on a specific model, or to price a replacement, contact 72 Degrees or call (830) 240-1835. Financing is available.