Adjusting Your Water Heater Temperature: To Do or Not To Do?

As a homeowner, one of the most common questions you may ask is whether you should adjust the temperature on your water heater. While it might seem like a small adjustment, it can have a significant impact on your energy bills, comfort, and even the longevity of your water heater. But is it always the best option, or should you consider repairs or even replacement? Let’s explore the pros and cons, especially for Las Vegas homeowners, and whether adjusting your water heater’s temperature could be the solution you need.

The Default Water Heater Temperature Setting

Most water heaters come preset at 120°F, which is recommended by manufacturers for a balance between energy efficiency and safety. This default setting is generally safe and comfortable for most households. However, over time, you may find that the water doesn’t get as hot as it used to, or your energy bills are creeping up. This is where adjusting the temperature—or considering repairs—comes into play.

For Las Vegas homeowners, where energy efficiency is a priority due to high energy demands during the summer, fine-tuning your water heater settings can make a noticeable difference.

Pros of Adjusting Your Water Heater Temperature

Energy Savings

One of the most compelling reasons to lower your water heater’s temperature is energy savings. Lowering the temperature by 10°F can save you up to 5% on energy bills. In a hot city like Las Vegas, where cooling systems already consume a lot of energy, any opportunity to reduce energy consumption is welcome. Adjusting the temperature can help you avoid energy waste without sacrificing comfort.

Improved Safety

Reducing the water heater’s temperature can also prevent scalding, especially in homes with children or elderly family members. Water temperatures above 120°F can cause burns in seconds. Lowering the temperature to 120°F or even slightly lower can offer peace of mind without compromising the availability of hot water for your daily needs.

Extended Appliance Lifespan

High temperatures cause more wear and tear on your water heater over time. By lowering the temperature, you can reduce stress on the system, leading to fewer repairs and an extended lifespan. In some cases, adjusting the temperature may prevent the need for premature replacement, saving you significant costs in the long run.

Cons of Adjusting Your Water Heater Temperature

Increased Risk of Legionella

While lowering the temperature can save energy, going too low can pose health risks. If your water heater temperature drops below 120°F, it can encourage the growth of harmful bacteria, such as Legionella, which causes Legionnaires’ disease. This is why it’s important to keep the temperature high enough to prevent bacteria while still being mindful of energy consumption.

Reduced Comfort

If you lower the temperature too much, you may notice that your hot water isn’t as satisfying as it once was, particularly for showers, laundry, or dishwashing. In busy households, especially in a place like Las Vegas where water usage can be high, having enough hot water is crucial. Lowering the temperature may save energy but could lead to discomfort or inconvenience.

Should You Repair or Replace Your Water Heater Instead?

If you’ve adjusted the temperature and you’re still not getting the hot water you need, it could indicate that your water heater is aging or damaged. At this point, adjusting the temperature may only provide a temporary fix. A water heater that struggles to maintain a consistent temperature could be a sign of a more serious issue that requires professional repair—or even replacement.

When Repair Is the Best Option

In some cases, a simple repair may solve your water heater problems. For example, a faulty thermostat or heating element can prevent your water heater from reaching the desired temperature. Timely repairs can restore efficiency and extend the life of your unit. In Las Vegas, where water quality can affect your heater’s performance, regular maintenance and prompt repairs are essential for avoiding costly breakdowns.

When It’s Time for a Replacement

If your water heater is more than 10-12 years old or requires frequent repairs, it may be more cost-effective to replace it. A new, energy-efficient model can lower your energy bills, improve performance, and eliminate the need for constant maintenance. Tankless water heaters, in particular, are a great option for Las Vegas homeowners looking to maximize energy savings and enjoy a steady supply of hot water without the risks of temperature fluctuations.

How to Safely Adjust Your Water Heater Temperature

If your water heater is in good condition, adjusting the temperature can still be a simple and effective way to improve efficiency. Here’s how you can safely do it:

1. Turn off the power: For electric water heaters, turn off the circuit breaker. For gas heaters, set the dial to the “off” position.
2. Locate the thermostat: Most water heaters have thermostats either on the outside or behind an access panel. Use a screwdriver to adjust the temperature.
3. Test the temperature: After adjusting the thermostat, wait a few hours, then check the water temperature using a thermometer to ensure it’s at your preferred setting.

If you’re unsure how to make these adjustments, or if you notice ongoing problems with your water heater, it’s best to call a professional. Active Plumbing and Air Conditioning can inspect your water heater, recommend whether an adjustment, repair, or replacement is the best solution, and ensure your system runs efficiently.

Special Considerations for Las Vegas Homeowners

For those living in Las Vegas, adjusting your water heater temperature comes with some unique considerations:

• Hard Water: Las Vegas is known for its hard water, which can cause sediment buildup in your water heater. Regular maintenance, including flushing the tank, combined with proper temperature settings, can help reduce sediment and extend the life of your heater.
• Energy Demands: With high temperatures and cooling costs already a concern in Las Vegas, lowering your water heater temperature can help reduce your overall energy usage, especially during peak times.
• Water Usage Patterns: Households in Las Vegas often use more water due to the climate, so finding the right temperature balance between comfort and savings is important for energy efficiency.

When to Call a Professional

Adjusting the temperature on your water heater can be a quick fix, but it’s not always the long-term solution. If your water heater is underperforming despite adjusting the temperature, or if you notice signs of wear, leaks, or inefficiency, it’s time to call in the experts.

Active Plumbing and Air Conditioning can help with:

• Water heater inspections
• Temperature adjustments
• Professional repairs
• Full water heater replacements, including energy-efficient tankless options

We’ll ensure your water heater is working efficiently and provide advice on whether repairs or replacements will save you the most money in the long run.

Final Thoughts: Is It Worth Adjusting Your Water Heater Temperature?

Adjusting your water heater temperature can result in lower energy bills, improved safety, and a longer-lasting appliance. However, in some cases, repairs or replacement may be a better solution, especially if your unit is aging or not performing efficiently. Finding the right balance between temperature settings, repair, and replacement is key to getting the most out of your water heater.

If you’re unsure about adjusting your water heater or think it may need repairs, contact Active Plumbing and Air Conditioning today. Our experts will help you determine the best course of action to ensure your home’s hot water is reliable, safe, and energy-efficient.