Both tank and tankless water heaters have specific advantages. You should consider your usage preferences, energy supply, space considerations, and other factors when making a decision.

One important consideration before purchasing is your energy supply. For whole home water heating, gas tankless is more cost effective if you already have natural gas or propane hookups in your home. A key consideration for electric is whether you have to add 240V electric service. Talk to your professional installer to discuss all of the considerations involved in making the best choice for your application.

There are several variables impacting cost, but generally you have a higher upfront cost on tankless with potential savings over time that is dependent on usage, local energy costs, incoming groundwater temperature, and other factors.

In most circumstances, yes. Tankless water heaters only consume energy when hot water is needed rather than keeping a tank of water hot 24 hours a day. You'll save on energy costs when using the same energy source between tank and tankless.

A. O. Smith tankless water heaters boast industry-leading warranties. While the lifespan of a tankless water heater can vary, factors like water conditions, usage rates and maintenance all contribute to your water heater’s health.

Energy savings, lower space requirement, and endless hot water are the main advantages of tankless water heaters.

Most units will require annual descaling maintenance.

Given the popularity of tankless water heaters, you can expect this to be a very attractive feature to a prospective homebuyer.

Before purchasing a tankless water heater, it’s important to first understand what kind of energy source your home runs on—electric or gas.

Depending on the size of your home and the number of people who live in it, you'll require an energy input that is based on your home's maximum hot water usage.

The great thing about tankless water heaters is that they can be installed almost anywhere in a home due to their compact size. One thing to consider is that the closer the water heater is to the shower or sink fixture the faster hot water will arrive.

Gas tankless water heaters generally use different venting than gas tank heaters. Consult a contractor to determine the best venting options for your home.