Water Heater Size: What To Look For When Replacing An Old Water Heater?

By The Shower Drapes | Blog

Water Heater Size

Replacing your water heater is a process that requires some research. While many factors impact the water heater size, there’s more to choosing a new water heater than just looking at the capacity and output. The size of your water heater will impact the amount of energy it uses. You should also check whether water heater repair professionals can handle the brand of heater you’re investing in.

EnergyStar Qualified

When replacing an old water heater, it’s essential to consider whether or not the unit is EnergyStar qualified. Energystar certifies energy-efficient products and helps consumers make informed choices about their energy consumption. The program is run by an independent agency that doesn’t rely on industry funding or political agendas. The benefits of choosing EnergyStar-qualified products include:

  • Lower costs on your utility bills
  • Lower carbon emissions (reduced by up to 30%)
  • Lower risk of water damage from leaks (up to 30%) 

Energy Factor Of The Water Heater

The energy factor of a water heater is determined by how much electricity it uses per gallon of water. It’s measured in British thermal units (BTUs). The higher the BTU rating, the more efficient the heater will be at heating water. However, there are many other factors that can affect your choice in choosing a new model, including cost and space requirements.

Size Matters

Water heaters come in all shapes, sizes, and configurations. That’s because not every household needs a unit large enough to serve the entire house. In fact, some homes only need a smaller unit for hot water usage once per day. So, how do you know what size water heater is right for your home?

The answer is simple: knowing how much hot water you use in your home. If you’re unsure how much hot water you use on average per day, start charting how much water each household member uses. Note down data for a week and average it out. This should give you a rough estimate.

Energy Consumption

Whether you’re installing a new water heater or replacing an old one, it’s essential to consider the heater’s energy consumption. You can’t just assume that all water heaters are the same – some are more efficient than others!

If you want to make sure you get the most out of your investment and reduce your energy costs, consider installing a tankless water heater. These models use less energy and can save up to 30% on your annual energy bill. They also help protect the environment by reducing greenhouse gas emissions from fossil fuels.


If you’re stuck between two or more models, the best thing you can do to make your decision is to call a licensed professional. He’ll be able to look at your specific needs and figure out the model that will work best for your household. If you’ve got a few features that you think are important, note that down so he can get an idea of which heater will work for you.

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