Comprehensive Guide to Tankless Water Heater Installation from Nearly Services's blog

Are you tired of running out of hot water in the middle of a shower or looking for a way to save on energy bills? A tankless water heater might be the solution you're searching for. Unlike traditional tank-style heaters that store hot water in a large tank, tankless models heat water on demand. This means you'll never run out of hot water, and you'll save space and energy. In this guide, we'll walk you through the process of installing a tankless water heater, step by step. 

What Is a Tankless Water Heater? 

A tankless water heater installation, also known as an on-demand water heater, heats water only when you need it. When you turn on the hot water tap, cold water flows through the unit, where it's quickly heated by electric elements or a gas burner. This is in contrast to traditional water heaters, which store hot water in a large tank and keep it heated all the time, consuming more energy. 

Benefits of a Tankless Water Heater 

1.       Endless Hot Water:You'll never run out of hot water because the heater heats it on demand. 

2.       Energy Efficiency:Only heats water when needed, which can lower your energy bills. 

3.       Space Saving:Compact and can be installed on walls, saving valuable space. 

4.       Longer Lifespan:Typically lasts longer than tank-style heaters with proper maintenance. 

Before You Begin: Planning and Preparation 

1.       Choose the Right Size:Determine the size and power of the tankless water heater you need based on your household’s hot water consumption. Check the manufacturer's specifications for the flow rate (measured in gallons per minute) and the temperature rise required. 

2.       Check Local Codes:Ensure your installation meets local building codes and regulations. Some areas might require a permit or professional installation. 

3.       Gather Tools and Materials:You’ll need a tankless water heater, a power source (electric or gas), water supply lines, venting materials (for gas heaters), tools like a wrench, screwdrivers, pipe fittings, and Teflon tape. 

Step-by-Step Installation Guide 

1. Turn Off Utilities 

Before you start, turn off the power and water supply to your existing water heater. If you’re installing a gas tankless water heater, also shut off the gas supply. 

2. Remove the Old Heater 

If you're replacing an existing water heater, carefully remove it from its mounting. Drain any remaining water and disconnect the plumbing and electrical or gas connections. 

3. Install the New Unit 

For Electric Tankless Water Heaters: 

·         Mount the Unit:Attach the unit to the wall using the provided mounting bracket. Ensure it’s installed at a height that allows for easy access and maintenance. 

·         Connect the Water Lines:Attach the cold water line to the inlet and the hot water line to the outlet. Use Teflon tape on the threads to prevent leaks. 

·         Connect the Power Supply:Install a dedicated circuit breaker and connect the unit to your electrical system. If you're unsure about wiring, consult an electrician. 

For Gas Tankless Water Heaters: 

·         Mount the Unit:Secure the unit to the wall with the mounting bracket, making sure it’s properly supported. 

·         Install Venting:Gas units require proper venting to expel combustion gases. Follow the manufacturer's instructions for vent pipe installation, and make sure it’s done correctly to avoid dangerous fumes. 

·         Connect the Water Lines:Attach the cold and hot water lines, using Teflon tape to ensure a tight seal. 

·         Connect the Gas Supply:Hook up the gas line to the unit, ensuring all connections are secure and leak-free. You might need a gas line extension or adapter depending on your setup. 

4. Test the System 

Once everything is connected, turn on the water supply and check for any leaks. For electric models, turn on the power at the circuit breaker. For gas models, turn on the gas supply and check for leaks using a gas leak detector or soapy water. If you find any leaks, address them immediately. 

5. Set the Temperature 

Adjust the temperature settings on your tankless water heater according to your preference. Most models have a digital thermostat or control panel where you can set the desired temperature. Refer to the user manual for specific instructions. 

6. Final Checks 

Ensure that all connections are secure and there are no leaks. Check the operation by running hot water through various taps to make sure the unit is heating water as expected. 

Maintenance and Care 

A tankless water heater requires regular maintenance to ensure efficient operation: 

·         Descale the Heater:Mineral deposits can build up in the unit, especially in hard water areas. Follow the manufacturer’s instructions for descaling or cleaning the unit. 

·         Inspect the Venting:Regularly check the venting system to ensure there are no obstructions or leaks. 

·         Check for Leaks:Periodically inspect all connections and water lines for signs of leaks or damage. 

Conclusion 

Installing a tankless water heater can be a rewarding project, providing you with endless hot water and potentially lowering your energy bills. While the installation process involves several steps and careful planning, the benefits of a tankless system make it worth the effort. Always follow the manufacturer's guidelines and local codes to ensure a successful installation. If you're unsure about any part of the process, don’t hesitate to consult a professional to help with your installation. Enjoy your new, efficient hot water system!