Comprehensive Guide to Tankless Water Heater Installation and Maintenance

tankless water heater

A tankless water heater is a valuable investment for any homeowner who wants to save on energy costs, enjoy unlimited hot water supply, and optimize their home’s plumbing system. As a full-service plumbing contractor based in Round Rock, TX, JustUs Plumbing Services is committed to providing comprehensive advice and solutions for tankless water heater installation and maintenance, ensuring that you get the most out of this modern, energy-efficient system.

In this comprehensive guide, we will help you understand the benefits of choosing a tankless water heater over traditional storage tank models, as well as offer insights on the installation process, and best practices for ongoing maintenance to ensure your system operates optimally for years to come.

Tankless water heaters, also known as on-demand or instantaneous water heaters, heat water directly without the need for a storage tank. This means hot water is available whenever you need it, providing significant savings on energy bills and a more environmentally-friendly solution. By choosing a tankless water heater for your home, you’ll enjoy a host of benefits, including increased energy efficiency, endless hot water supply, a longer lifespan compared to storage tank units, and a more compact design that saves valuable space.

Our complete guide to tankless water heater installation and maintenance, backed by the experienced team at JustUs Plumbing Services, will ensure that your home enjoys reliable, energy-efficient hot water for years to come. We’re committed to providing the highest level of expertise and service for all your residential plumbing needs, guiding you through every step of the process, from choosing the right unit to ongoing system maintenance.

Whether you’re looking to upgrade your existing hot water system or add a new one, trust JustUs Plumbing Services for unparalleled dedication to customer satisfaction and a proven track record of excellence in plumbing installation and repair. Let us help you make a smooth transition to tankless water heating, setting the stage for a more comfortable, energy-efficient, and sustainable home environment.

Choosing the Right Tankless Water Heater

Selecting the appropriate tankless water heater for your home is a crucial step in ensuring optimal performance and energy efficiency. Consider the following factors when making your choice:

  • Fuel Source: Tankless water heaters can be powered by natural gas, propane, or electricity. Determine which fuel source best suits your home’s needs and infrastructure.
  • Flow Rate: Measure your household’s peak hot water demand to select a unit with the appropriate flow rate (measured in gallons per minute or GPM). This will ensure the heater can meet your hot water demands without overworking the system.
  • Energy Efficiency: Review each unit’s energy factor (EF) rating, which indicates its energy efficiency. A higher EF rating means the unit is more efficient and could save you more on energy costs in the long run.
  • Ventilation: If you opt for a gas-powered tankless water heater, proper ventilation is essential. Consider whether your home is equipped with the necessary ventilation system or if modifications will be required during installation.

Tankless Water Heater Installation Process

Once you’ve chosen the right unit for your home, it’s essential to have it correctly installed by professionals to ensure optimal functionality and safety. Here are the general steps of the installation process:

  • Assessing the Installation Area: A professional plumber will inspect your home to determine the best location for the tankless water heater, considering factors like fuel source, ventilation, and proximity to the point of use.
  • Preparing the Area: The plumber will uninstall your current water heater (if necessary) and prep the area for the new tankless system. This may include retrofitting or installing a new gas line, electrical components, or ventilation system.
  • Mounting the Unit: The tankless water heater will be securely mounted on the wall in the chosen location, ensuring it’s properly leveled and adheres to local building codes.
  • Connecting the System: Finally, the plumber will connect the tankless water heater to your home’s plumbing system, gas or electrical supply, and the ventilation system (if applicable).
  • Testing and Calibration: The professional installer will test the new tankless water heater to ensure it’s functioning correctly and safely. They will also calibrate the system to your household’s hot water demands, ensuring optimal performance and energy efficiency.

Maintaining Your Tankless Water Heater

To extend the lifespan and efficiency of your tankless water heater, regular maintenance is essential. Follow these maintenance best practices to keep your system functioning at its best:

  • Annual Inspections: Schedule annual inspections and servicing by a professional plumber to identify and address potential issues before they escalate.
  • Flush the Unit: Once a year, flush your tankless water heater to remove any mineral buildup and scale inside the heat exchanger that could reduce efficiency and lead to damage.
  • Clean the Filter and Vent: Periodically clean the water filter screen on your tankless water heater, as it can become clogged over time. Additionally, ensure that your system’s vent remains free of debris or obstructions.
  • Adjust the Temperature: Adjusting your tankless water heater’s temperature settings to meet your household’s specific needs while avoiding energy waste will help maintain the system’s efficiency.
  • Winterization: If you live in an area prone to freezing temperatures, winterize your tankless water heater by insulating the pipes and following the manufacturer’s instructions to prevent damage caused by frozen water.

Extend the Lifespan of Your Tankless Water Heater

Following best practices for tankless water heater installation, maintenance, and routine inspection will help extend its lifespan and ensure that it functions at peak performance. Keep these tips in mind:

  • Consult a Professional: Always consult a professional plumber for necessary repairs or maintenance to avoid voiding the warranty or causing further damage to your system.
  • Use Quality Components: When replacing components or installing a new tankless water heater, use high-quality parts to ensure optimal performance and longevity.
  • Follow Manufacturer’s Recommendations: Adhere to the manufacturer’s guidelines for your specific tankless water heater regarding installation, maintenance, and winterization to prolong its lifespan.


Investing in a tankless water heater provides numerous benefits, including reduced energy costs, endless hot water supply, and an eco-friendly solution for your home. By selecting the right unit, ensuring proper installation, and following routine maintenance and best practices, you can enjoy a highly efficient and long-lasting tankless water heating system.

Upgrade your home’s comfort, energy efficiency, and sustainability with our expert guidance and exceptional service from JustUs Plumbing Services. Whether you need a tankless water heater installation or ongoing maintenance and support, we have you covered. Trust us for all your residential plumbing needs and experience our commitment to excellence and proven track record in the industry. Call JustUs Plumbing Services now and remember the Keyword Tankless Water Heater Installation and Maintenance. Contact us today to schedule your appointment and start saving money on your energy bills while enjoying endless hot water!


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