Step-By-Step Guide: How To Adjust Your Water Heater Temperature


Are you tired of stepping into a scorching hot shower or shivering under lukewarm water? The temperature of your water heater may be the culprit! But don’t worry, adjusting it is easier than you think. In this step-by-step guide, we’ll walk you through the process of adjusting your water heater temperature and help ensure that every shower is just right. So grab your wrench, and let’s get started on achieving optimal comfort in your home!

Introduction To Water Heaters

Water heaters are one of the most commonly used appliances in the home. They are responsible for providing hot water for showers, laundry, dishes, and other household needs. While they are typically very reliable, there may come a time when you need to adjust the temperature of your water heater.

Types Of Water Heaters

There are different types of water heaters, each with its own benefits and drawbacks. The most common type of water heater is the storage tank water heater. This type of water heater stores hot water in a tank, and it is typically the most affordable option. However, storage tank water heaters can have issues with sediment buildup, which can lead to problems down the road. Additionally, they are not as efficient as some other types of water heaters.

Another common type of water heater is the tankless water heater. This type of water heater does not store hot water in a tank, which means that it is more efficient than storage tank models. Additionally, it takes up less space since there is no need for a storage tank. However, tankless water heaters can be more expensive to purchase and install than storage tank models.

If you are looking for an efficient and space-saving option, consider a point-of-use (POU) water heater. POU water heaters are small units that are installed near your sink or shower. They provide hot water on demand, which means that you don’t have to wait for hot water to travel from a central location like you would with a traditional storage tank model. However, POU models can be more expensive than other types of water heaters.

How To Adjust The Temperature

If your water heater isn’t providing enough hot water, or if the water is too hot, you may need to adjust the temperature. Here’s how:

1. Locate the temperature control knob or dial on your water heater.

2. If the knob or dial is labeled with numbers or symbols, use a reference chart to determine what each number or symbol represents in terms of temperature.

3. Use a flathead screwdriver to turn the knob or dial to the desired setting.

4. If you’re not sure what setting to use, start with a lower setting and increase as needed until you find the perfect temperature for your needs.

5. Once you’ve set the temperature, wait 15 minutes to allow the water heater to adjust before testing the water temperature.

Safety Tips For Adjusting Your Water Heater Temperature

If you’re not sure what temperature to set your water heater, start by setting it to the manufacturer’s recommended setting. From there, you can experiment until you find the perfect temperature for your needs. Here are a few safety tips to keep in mind when adjusting the temperature of your water heater:

1. Never set the temperature higher than 140 degrees Fahrenheit. It’s important to be cautious.

2. If you have young children or elderly people in your home, be very careful not to set the temperature too high. They are more susceptible to scalding injuries than healthy adults.

3. Always test the water before getting in, even if you’ve just adjusted the temperature. This will help you avoid any injury.

Common Issues With Water Heater Temperatures

If your water heater temperature is too low, you may find that your water isn’t hot enough for showers or washing dishes. You may also find that your energy bills are higher than usual, as it takes longer to heat the water. If your water heater temperature is too high, you may find that your water is scalding hot or that your energy bills are higher than usual. You may also find that your water tank is constantly emptying and refilling, which can be a waste of water and energy.

Tips For Best Performance From Your Water Heater

It’s important to keep your water heater in good working order, not only for your own comfort but also to save money on your energy bills. Here are some tips for getting the best performance from your water heater:

1. Insulate Your Water Heater Tank

One of the simplest and most effective ways to improve the efficiency of your water heater is to insulate the tank. This will help keep the heat in and reduce the amount of energy needed to maintain the water temperature. You can buy special jackets for this purpose, or simply wrap the tank in an insulating material like blankets or old towels.

2. Check The Temperature Setting

You may be surprised to learn that you can actually save energy by setting your water heater to a lower temperature. The Department of Energy recommends setting it to 120 degrees Fahrenheit (48 degrees Celsius) for optimal energy efficiency. Of course, you’ll need to experiment a bit to find the right setting for your needs – if it’s set too low, you may not have enough hot water; if it’s set too high, you could waste energy unnecessarily.

3. Drain Sediment From The Tank Regularly

Over time, sediment can build up in the bottom of your water heater tank and cause problems with efficiency and performance. It’s, therefore, important to drain the tank regularly – at least once a year – to remove this sediment. You can do this yourself or hire a local plumber to do the job.


Making adjustments to your water heater’s temperature is easy and essential for keeping both your water and energy bills low. This step-by-step guide should have given you a clearer understanding of the process, from preparing to making the necessary changes. Remember that if you’re ever unsure about any aspect of this procedure, be sure to consult plumbing services near me who can help walk through it with you safely.