Info Center

Several types of water heaters are available, including gas, electric, solar-powered and hybrid models. Read on to learn about the pros and cons of different water heaters and their suitability for your home. 

In this comprehensive guide, we explore the factors that determine your water heater lifespan, the signs that indicate the end could be near, and how to choose the right installer and system to suit your needs.

When choosing a new water heater, it's important to get one that’s correctly sized for your needs. This guide's topics include the basic principles of sizing a water heater, the differences between tank and tankless water heaters and selecting the right size water heater.

Consider what size of water heater is best for your needs. Review the factors you’ll need to weigh before making a decision.

Explore what factors go into both water heater cost and installation so you have a better idea of what to expect when you need a new unit.

In this article, we explore various considerations when choosing a gas vs. electric water heater, including technological advancements that make both solutions more cost-effective than ever.

While you have plenty of options when choosing a new hot water heater, one of the biggest decisions you need to make is whether to go with a traditional tank heater or opt for a modern, efficient tankless water heater.

Tankless and heat pump water heaters are two great alternatives for efficient, effective water heating. While vastly different, they reduce water heating costs while ensuring you always have hot water on tap. 

In this guide, we talk about the different types of A.O. Smith water heaters, water heater costs and factors that influence the total cost of hot water heater replacement.

How can the quality of your water affect your water heater? Get tips and more information on water hardness, why it matters, and how to solve it.

Having the correct venting for your gas water heater is vital to ensure the hot exhaust exits your home.

A. O. Smith is a leading manufacturer of commercial and residential water heaters. Hear what some of our customers have to say about their products and experiences with us.

Leadership in Energy and Environmental Design (LEED) certification provides independent, third-party verification that a building project meets the highest energy-efficient building and performance measures.

The Uniform Energy Factor (UEF) is the Department of Energy’s latest metric for communicating the energy efficiency of residential water heaters.

In this guide, we will explore tankless water heaters in depth. We'll examine the main differences between electric and gas models, how they compare to traditional water heaters, and why it might be good for your wallet to make the switch.

Compare tankless to traditional water heaters, and the pros and cons of using a tankless water heater in your home.

If you're wondering about tankless water heater cost or where to purchase a dependable system, read on to discover what you can expect to pay and how to go about choosing a tankless water heater that meets your specific needs.

Tankless water heaters are a space-saving, energy-efficient alternative to traditional tank water heaters. Understanding how these units operate helps you decide whether a tankless water heater is right for your home.

In this guide, we’ll outline how long it takes for a hot water heater to heat up after installation based on unit type. We’ll also explore common reasons for subpar heating times and share some troubleshooting tips to get your unit running smoothly again.

The Department of Energy (DOE) sets national minimum energy efficiency standards for commercial and consumer (residential) water heaters.

Commercial Regulatory requirements go into effect on October 6, 2026.

Residential Regulatory requirements go into effect in May 2029.

Is it dangerous if the pilot light goes out on a water heater? And what should you do if the pilot goes out?

When appliances go rogue, the combination of unwanted sounds and poor performance can be extremely frustrating. To help you get rid of cold showers and rattling pipes, we’ve put together this guide to water heater problems.

How to adjust a water heaters temperature setting, and how different control systems work for electric and gas water heaters.