How to Turn on Pool Heater

Have you ever wanted to take a dip in your pool after the sun has gone down or maybe earlier in the season when temperatures are still relatively low? Then you’ll be glad to know that with a little bit of work and preparation, you can turn on your pool heater and make use of your swimming hole at whatever time of year!

How to Turn on Pool Heater

Read on for an easy step-by-step guide on how to turn on pool heater running quickly. With just minimal knowledge about setting up your equipment, we’ll have soon had the luxury of being able to enjoy our pools all year round – no matter what mother nature throws at us!

Why is Pool Heater Needed?

A pool heater is a great way to get the most out of your swimming experience – no matter what time of year it is. Pool heaters are necessary in order to raise the temperature of the water in your pool, which will then allow you to enjoy a more comfortable and enjoyable swim or soak. 

Additionally, they also help reduce evaporation and chemical loss that come with regular pool usage. You can also customize your pool temperature to best suit your needs. You can turn up the heat on chilly days and reduce it when temperatures are warm.

Now that you know why it’s important to have a pool heater, let’s get down to business.

Needed Tools and Materials

  • Pool heater
  • Gas or electrical power source (depending on your type of heater)
  • Goggles and gloves for safety

10 Instructions on How to Turn on Pool Heater

1.Check the Connection

Check the gas or electrical connections to make sure they’re secure and properly installed, depending on your type of heater. Checking the connections will help ensure safe and efficient operation.

2.Set the Temperature

Find the thermostat on your pool heater and adjust it to the desired temperature setting. Make sure you don’t exceed the maximum temperature recommended by your pool heater manufacturer. Remember to keep safety in mind when adjusting settings.

Find the Thermostat on Your Pool Heater

3.Turn On the Power Source

Depending on your type of heater, turn on the power source – either flip a switch or start up a generator for gas heaters and plug-in electric heaters for electrical ones. You should hear the power source running now, but it will take some time for the heater to heat up.

4. Check the Pressure Gauge

Check the pressure gauge on your pool heater. The needle should be showing a safe level of pressure (usually around 10-15 psi). If it’s not in the range, you may need to adjust or repair the power source accordingly. 

5. Wait for the Heater to Warm Up

Give your heater some time to warm up, and make sure you’re paying attention to the temperature reading on the thermostat. Depending on your type of heater, it can take anywhere from 30 minutes to an hour or more to heat up.

6. Check Pressure Again

Once the desired temperature has been reached, go ahead and check the pressure gauge again. This will ensure that no problems occur during heating and that your pool heater is running safely. Check for any leaks as well if you’re unsure.

7. Adjust the Temperature Setting

Now that your pool heater is warm and running safely adjust the temperature setting to whatever suits you best. Keep in mind the maximum temperature recommended by your manufacturer to ensure safety and efficiency.

Adjust the Temperature Setting

8. Test Out Pool Water

Once you’re happy with your temperature setting, it’s time to give it a test run! Get into the pool and check to see if you’re comfortable with the water temperature. If everything works out, then your pool heater is ready for use!

9. Monitor the Pool Heater

Make sure you monitor your pool heater regularly to ensure it’s running properly. This can help prevent any unexpected problems from occurring. Keep an eye on the temperature setting and check for any leaks or problems that may arise.


Now it’s time to enjoy your pool! With a properly running pool heater, you can now get the most out of your swimming experience no matter what mother nature throws at us! Have fun and stay safe.

Following these instructions will help you get the most out of your pool heater. Enjoy a comfortable and enjoyable swim whenever you want.

8 Safety Precautions to Follow

  1. Make sure the pool filter is running and that the pump is working before turning on the heater. The pump should circulate the pool water through the filter and back into the pool.
  2. Make sure that all of the valves associated with your heater are in their proper position for heating. This includes gas shut-offs, valves for water flow, and any additional components used to control the heat level.
  3. Check to make sure there is no air trapped in the heater. If there is, you may need to bleed off some of the pressure before turning on the heater. The air may cause the heater to overheat, resulting in damage.
  4. Make sure that the temperature of your pool is between 70-80 degrees before turning on the heater. If it’s too cold, you will need to use additional heating sources to warm up the water before using the heater.
  5. Read and follow any instructions from your heater manufacturer before turning on the heater. This ensures that you are using it correctly and safely, as well as prevents any damage from occurring.
  6. Always use caution when operating a pool heater, as it can become very hot and may cause burns or other injuries if not handled properly. Caution should also be taken when checking the temperature of the water, as it can reach a very high level if not monitored properly.
  7. Make sure to check for any gas or electric leaks before turning on the heater. If there are any, you should have them fixed before using the heater.
  8. If you are unsure about any of the steps involved in turning on a pool heater, hire a professional to do it for you. This will help ensure that everything is done correctly and safely.
Make Sure the Pool Filter is Running

By following these safety precautions when turning on your pool heater, you can ensure that you are using it correctly and safely. If you have any questions or concerns about the process, it is best to consult with a professional. Doing so will help you avoid any accidents or damages caused by improper use of the heater.

Frequently Asked Questions

How long will it Take to Finish the Project?

The exact time it takes to complete the project depends on a number of factors, including the size of your pool and the type of heater you are using. Generally, it takes between 1-2 hours for an experienced professional to install or replace a pool heater. It might take longer if you are doing the work yourself. 

How Much Does It Cost to Replace a Pool Heater?

The cost of replacing a pool heater will depend on several factors, such as the size of your pool, the type of heater you need, and the amount of labor involved in the installation. Generally, it can range anywhere from $500 to $3000.

Are Pool Heaters Safe To Use?

Pool heaters can be safe to use if you follow the proper safety precautions and instructions from your heater’s manufacturer. Be sure to check for any gas or electric leaks before turning on your heater, and always use caution when operating it to avoid injury or damage.  Additionally, it is important to read and follow all instructions from the manufacturer before operating the heater.

Check for Any Gas or Electric Leaks

How Often Should I Replace My Pool Heater?

Pool heaters are typically designed to last for many years with proper care and maintenance. However, if your heater is more than 10-15 years old or you notice a decline in its performance, it’s a good idea to have it checked by a professional. 

Additionally, if you notice any parts that look worn or damaged, replacing them can help extend the life of your heater. Pool heater maintenance is important to ensure that your heater works safely and efficiently.


Overall, learning how to turn on your pool heater is essential for ensuring that your swimming pool is always at the perfect temperature. It may seem simple, but avoid skipping steps or misinterpreting instructions, as doing so can cause serious damage and costly repairs. When in doubt, it is always advisable to you seek help from a professional who has experience handling pool equipment and systems.

By factoring these tips on how to turn on pool heater into your practice – from understanding the most important details about components and mechanics to being safe at every step of the process – you can ensure that your swimming pool will be enjoyable for years to come. As mentioned before, a skilled professional can help walk through any uncertainties and offer guidance toward successful and safe practices of turning on your pool heater. Have fun!

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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