What Can Cause A Water Heater to Burst?

Water heaters are designed for safety and efficiency, but certain circumstances can cause them to burst or explode. Although it’s considered relatively rare, it’s important to understand the potential triggers that can lead to this dangerous and problematic (and potentially costly) situation.

As the trusted local expert for water heater repair in Chatsworth, CA, Roberts Plumbing Hydro Jet & Rooter explores what can cause a water heater explosion and steps to prevent it from occurring in your home.

Excessive Pressure

An important component of a water heater is the pressure relief valve, which is designed to open and release pressure when it reaches a dangerous level. If this valve fails to work properly, pressure from heated water can build up inside the tank until it reaches a point where the tank cannot contain it anymore. This is often referred to as a “thermal expansion,” and if not addressed, it can result in a burst water heater.

Regular maintenance checks can ensure the relief valve functions properly. Homeowners should also set their water heater temperature to an optimal level, typically around 120 degrees Fahrenheit. High-temperature settings increase pressure buildup risk.

Moreover, it’s crucial to avoid blocking or capping the valve, as this can hinder it from releasing pressure when needed. Being vigilant about leaking valves and calling for immediate water heater services can prevent bigger issues from cropping up.

Sediment Buildup in the Tank

Sediment buildup occurs when minerals from hard water settle at the bottom of the water heater tank. Over time, the sediment layer can become quite thick, reducing the water heater’s efficiency and causing it to overheat. This overheating can lead to the tank’s structural integrity becoming compromised, increasing the risk of a burst water heater.

Homeowners should also listen for any unusual sounds, like popping or rumbling, which indicate sediment presence. If ignored, sediment can also affect water quality, leading to discolored or smelly water.

Regularly flushing the tank can prevent sediment accumulation. Doing this at least once a year can make a significant difference. Additionally, installing a water softener can minimize mineral buildup. Professional assessments can help determine the severity of sediment issues and recommend appropriate interventions.

Corrosion

Corrosion is a common issue in water heaters, especially in older units. Rust and corrosion can weaken the tank structure, making it more susceptible to bursting. Telltale signs of corrosion can include discolored or rusty water coming out of the faucets and unusual noises coming from the water heater.

Regular checks for the condition of the anode rod are essential, as well as replacing them when worn out. The sacrificial anode is responsible for attracting corrosive elements in the water and protecting the tank. Without this essential component, corrosion can occur at a much faster rate.

External tank inspection can also detect rust spots indicating internal corrosion. Corrosion can decrease the appliance’s lifespan, necessitating early hot water heater replacement if not addressed.

Incorrect Installation

Improper water heater installation can predispose your appliance to a variety of problems that could ultimately lead to bursting. Incorrect installation practices might involve faulty connections, improper venting, or inadequate clearance around the unit, each of which can evolve into a serious hazard.

For instance, gas water heaters that are poorly vented can accumulate dangerous gases, posing safety risks beyond just mechanical failure. Across both gas and electric models, ensuring that installation follows specific manufacturer guidelines is crucial for safe operation.

Installing traditional and tankless water heater units should always be done by licensed professionals who understand state and local codes. Additionally, confirming that all components, such as expansion tanks and valves, are properly sized and fitted is essential. Emphasizing correct and secure installation from the outset significantly lowers the risk of a catastrophic failure and makes certain that you get the most out of your investment.

Keep Your Water Heater Operating Smoothly with Our Help

Since you rely on your water heater daily, it’s essential to give it the care and attention it deserves. Our technicians at Roberts Plumbing Hydro Jet & Rooter are proud to help homeowners keep their water heater systems running safely and efficiently. We are licensed, bonded, and insured, and we’ve been serving our neighbors in Chatsworth and the nearby areas for over 25 years now.

Our team provides expert maintenance services for all types of water heaters, from gas-powered to tankless models. If repair or replacement is necessary, you can trust us to provide comprehensive and competitively priced solutions. Contact us today or fill out our online form to schedule an appointment.