What Size Water Heater Do I Need?

If you’re wondering what size water heater you need, you’ve come to the right place. In this blog post, we’ll give you some tips on how to calculate the right capacity for your needs.

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An efficient water heater is an important factor in both the comfort and utility bills of any home. A properly sized water heater will minimize both your costs and your carbon footprint, while still providing you with plenty of hot water.

To find the right size for your home, first determine how much hot water you’ll need and when you’ll need it. Then compare that to the fuel type and efficiency of the different models available to find the one that best meets your needs.

Factors to Consider When Selecting the Right Size Water Heater

When it comes to water heaters, size does matter. That’s why it’s important to select the right size water heater for your home. There are a few factors to consider when making your selection. Let’s take a look at some of those factors now.

Family Size

When determining what size water heater is right for your home, one of the first factors to consider is the size of your family. The more people that live in your home, the more hot water you will need to have on hand at any given time. If you have a large family, or if members of your family like to take long showers, you will probably need a larger water heater than someone who lives alone or has a small family.


One important factor to consider when selecting the right size water heater is climate. In cold weather climates, a larger water heater may be necessary because water heaters work less efficiently in colder temperatures. For example, a 50-gallon tank water heater in a warm weather climate may provide enough hot water for a family of four who take showers once a day and run the dishwasher once a day. However, the same size water heater in a cold weather climate may not be sufficient because the water heater will not operate as efficiently in the cold. In a cold weather climate, a family of four who take showers once a day and run the dishwasher once a day may need a 80-gallon tank

Water Usage Patterns

The first factor you need to consider when selecting the right size water heater is your family’s typical water usage patterns. A family of four that takes showers every morning, uses the dishwasher once a day, and washes a load of laundry every other day will have different hot water needs than a family of four that takes showers every other day, uses the dishwasher once a week, and washes a load of laundry once a week. How often you use hot water in your home will help determine what size tankless water heater you need.

Types of Water Heaters

There are many different types of water heaters available on the market today. Some of the most popular include tankless water heaters, solar water heaters, and electric water heaters. Each type of water heater has its own set of pros and cons. In this article, we will take a closer look at each type of water heater and help you decide which one is right for you.

Storage Tank Water Heaters

Storage tank water heaters are by far the most common type of water heater. As the name suggests, these units consist of an insulated tank in which water is heated and stored until it’s needed. The size of the tank depends on the amount of water your household uses on a daily basis, but it typically ranges from 20 to 80 gallons.

Storage tank water heaters come in both gas and electric models, and they can be powered by either natural gas or propane. Gas models are usually more energy-efficient, but they require proper ventilation to operate safely. Electric models are typically less expensive to install, but they’re slightly less efficient than gas models and they require a dedicated circuit.

Tankless Water Heaters

A tankless water heater is a plumbing appliance that heats water on demand. It’s different from a conventional storage tank water heater because it doesn’t store hot water. Instead, it uses coils or heating elements to heat the water as you need it. That means you don’t have to wait for the tank to fill up with hot water before you can take a shower or wash dishes.

Tankless water heaters are available in two different types: electric and gas. Electric models are less expensive to install but may not be able to produce enough hot water for large households. Gas models are more expensive to install but can provide an endless supply of hot water.

There are several benefits of using a tankless water heater:
-They save space because they are much smaller than storage tank water heaters.
-They are more efficient because they only heat the water when you need it, rather than keeping a tank of hot water constantly heated and ready to use.
-They have a longer lifespan because they don’t have the same wear and tear as storage tank water heaters.
-They provide an endless supply of hot water, so you never have to worry about running out.


Now that you know the different types of water heaters and the factors involved in sizing them, you can determine what size water heater you need. Use the information above to calculate your family’s peak hour demand and type of usage. With that information, you can decide on the right capacity and fuel type for your needs. You can also use ourproduct selector tool to further narrow your choices.