Hot water is one of those modern comforts we often take for granted—until something goes wrong. Whether you're buying a new water heater, wondering how they work, or concerned about leaks, understanding your water heater can help you make smarter decisions and avoid costly repairs. Here's a closer look at some of the most common questions people ask about their water heaters.

Will a Water Heater Work Without Electricity?

The short answer: it depends on the type of water heater you have.

• Electric water heaters will not work without electricity. They rely entirely on electric-powered heating elements to warm the water.

• Gas water heaters often can still provide hot water during a power outage, especially if they have a standing pilot light. However, newer models with electric ignition systems may need power to operate even if they burn gas.
  If you're concerned about having hot water during a power outage, it's worth asking about specific models that offer non-electric ignition systems.

Are Water Heater Elements Universal?

Not quite. Water heater elements are not universal.
Different water heaters use different wattages and thread styles, and even the material of the element (such as copper, stainless steel, or incoloy) can vary. It's important to match the replacement element to the specifications of your existing water heater. Using the wrong one could reduce efficiency—or worse, cause damage.
If you're ever unsure, check your owner's manual or consult with a licensed plumber.

Can a Water Heater Explode?

Yes—but it's rare with proper maintenance.
Explosions are typically caused by extreme pressure buildup, often when the temperature and pressure relief valve (T&P valve) fails. If the water inside the tank gets too hot without a way to relieve that pressure, the results can be dangerous.
This is why annual maintenance and testing your T&P valve are so important. If you ever hear unusual rumbling, popping, or hissing sounds—or notice leaking—call a professional right away.

How Does a Water Heater Work?

While there are different types (tank, tankless, electric, gas), the basic idea is the same:

• Tank water heaters store water inside an insulated tank and heat it with electric elements or a gas burner.

• Tankless water heaters heat water on demand as it flows through the unit, without storing it.

When you turn on a hot water tap, cold water enters the heater, gets warmed up, and travels through your pipes to your faucet or shower. Modern models use thermostats to keep water at a set temperature, typically around 120°F.

What Water Heater Should I Buy?

Choosing the right water heater depends on your home's size, hot water needs, and energy goals.
Some popular brands include Bradford White, Rheem, AO Smith, and Navien (especially for tankless options).

At Applause Plumbing and Heating, we proudly install Bradford White water heaters. Why? Because they are known for their durability, high performance, and strong warranties—and they’re made specifically for licensed professionals to install, ensuring quality control.

When choosing a water heater, consider:

• Tank size or flow rate (gallons per minute for tankless)

• Energy efficiency ratings

• Recovery rate (how fast it can reheat water after use)

• Warranty terms

A licensed plumber can help you select a model that fits your specific needs.

Why Is My Water Heater Leaking from the Bottom?

A leak at the bottom is usually a serious sign. Some common causes include:

• Drain valve leak: This is a small, often repairable issue where the valve at the bottom isn't sealing properly.

• Tank corrosion: Over time, minerals in water can eat away at the tank lining. If the tank itself is leaking, the entire water heater usually needs to be replaced.

• Internal tank failure: Caused by age, pressure issues, or poor maintenance.

If you see water pooling under your heater, shut off the water supply and call a professional immediately. Quick action can prevent worse damage to your home.

Final Thoughts

Your water heater is a key part of your home's comfort and safety. Regular maintenance, quick responses to problems, and professional installation make a big difference in how well your system performs—and how long it lasts.

If you need a new water heater or help with repairs, Applause Plumbing and Heating is here to help. We specialize in Bradford White water heater installation, ensuring you get reliable hot water for years to come.

Have more questions or need a water heater estimate? Contact us today!