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Tankless Water Heater Installation

Unleash Endless Comfort: Choose BTB Plumbing for Flawless Tankless Water Heater Installations!

When it comes to tankless water heater installation, By The Book Plumbing is the clear choice for customers seeking unparalleled expertise and top-notch service. Led by Jame Smith, a master-certified plumber renowned for his strong work ethic, unwavering integrity, and esteemed reputation in the community, we are dedicated to providing a seamless and efficient installation experience. With specialization in all water heater and tankless water heater services, we possess the skills and knowledge to handle every aspect of your installation with precision and professionalism.

At By The Book Plumbing, we understand the importance of a reliable and energy-efficient hot water system in your home. That’s why we go above and beyond to deliver exceptional results tailored to your specific needs. We work closely with you to assess your requirements, recommend the ideal tankless water heater model for your home, and ensure a flawless installation that maximizes efficiency and performance. Trust BTB Plumbing to transform your hot water experience, offering superior craftsmanship, transparent pricing, and a commitment to your utmost satisfaction. Contact us today and let us provide the exceptional tankless water heater installation you deserve.

Our AVERAGE Tankless Water Heater Price:

$ 5500

*Click to view our average price details. 

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$600 Federal Tax Credit on Tankless Water Heaters!

Beginning 2023, the expanded version of 25C, now called the Energy Efficient Home Improvement Tax Credit (under the Inflation Reduction Act of 2022), provides a maximum credit of $1,200 annually for most taxpayers. It is $600 for any single energy property item (including Tankless Water Heaters and Boilers)…Learn More

Tankless Water Heater Installation: Efficient and Convenient Hot Water Solutions

Welcome to the world of tankless water heaters! Below, we will explore the ins and outs of tankless water heater installation. As a homeowner, you understand the importance of having a reliable and efficient hot water supply. Traditional water heaters with storage tanks can be bulky and consume a significant amount of energy. However, tankless water heaters offer a modern and energy-saving alternative. In this comprehensive guide, we will discuss the benefits of tankless water heaters, factors to consider before installation, the installation process itself, and essential maintenance tips.


Understanding Tankless Water Heaters

Tankless water heaters, also known as on-demand water heaters, provide hot water instantly without the need for a storage tank. These innovative systems heat water directly as it passes through the unit, eliminating the standby energy loss associated with traditional water heaters. Tankless water heaters are available in electric or gas-powered models, each with its own set of advantages and considerations.

Benefits of Tankless Water Heaters

1. Energy Efficiency

One of the main advantages of tankless water heaters is their energy efficiency. Unlike conventional water heaters that constantly heat and reheat the water in the storage tank, tankless models only heat water when it’s needed. This on-demand heating significantly reduces energy consumption and lowers utility bills.

2. Space Saving

Tankless water heaters are compact and wall-mounted, saving valuable space in your home. Unlike bulky storage tank units, tankless models can be installed in smaller utility closets, under sinks, or even on exterior walls.

3. Continuous Hot Water Supply

With a tankless water heater, you can enjoy a continuous supply of hot water. Since the unit heats water as it flows through, you won’t experience the inconvenience of running out of hot water during long showers or while doing laundry.

4. Longer Lifespan

Tankless water heaters generally have a longer lifespan compared to traditional units. While storage tank models may last around 10-15 years, tankless water heaters can last up to 20 years or more with proper maintenance.

Factors to Consider for Tankless Water Heater Installation

Before installing a tankless water heater, there are several factors you should consider:

1. Fuel Type

Decide whether you want an electric or gas-powered tankless water heater. Electric models are easier to install and require less maintenance, but gas-powered units tend to have a higher flow rate and are more suitable for larger households.

2. Water Demand

Evaluate your household’s hot water demand to determine the appropriate size and flow rate for the tankless water heater. Consider the number of bathrooms, appliances, and simultaneous hot water needs to select a unit that can meet your requirements.

3. Ventilation and Gas Supply

If you opt for a gas-powered tankless water heater, ensure that your home has proper ventilation and a sufficient gas supply. Gas units require proper venting to release combustion byproducts safely. It’s crucial to consult a professional plumber or HVAC technician to assess your home’s ventilation and gas supply before installation.

4. Installation Location

Choose an appropriate location for your tankless water heater installation. Consider factors such as accessibility, proximity to the water source, and electrical or gas connections. The installation area should have sufficient space for the unit and comply with local building codes and regulations.

5. Budget

Set a budget for your tankless water heater installation project. Consider the initial cost of the unit, installation expenses, and any necessary upgrades to your electrical or gas systems. Although tankless water heaters may have a higher upfront cost compared to traditional units, the energy savings over time can offset the initial investment.


Steps for Tankless Water Heater Installation

1. Turn Off Utilities
Before starting the installation process, turn off the electricity or gas supply to the water heater and shut off the water source.

2. Remove Old Water Heater
If you’re replacing an existing water heater, drain the tank and disconnect it from the plumbing and electrical or gas connections. Follow proper disposal procedures for the old unit.

3. Prepare Installation Area
Clear the installation area and ensure it meets the necessary requirements, such as proper ventilation and access to electrical or gas connections.

4. Mount the Unit
Follow the manufacturer’s instructions to mount the tankless water heater securely on the wall. Use appropriate brackets and ensure it is level.

5. Connect Plumbing
Connect the water supply line to the cold water inlet and the hot water outlet. Use appropriate fittings and ensure proper sealing to prevent leaks.

6. Connect Electrical or Gas Supply
If you have an electric tankless water heater, connect it to the electrical supply following local codes and regulations. For gas-powered units, connect the gas supply line following proper safety measures and consult a professional if needed.

7. Venting (for Gas Units)
If you have a gas-powered tankless water heater, install the necessary venting system to exhaust combustion byproducts safely. Follow manufacturer instructions and consult a professional if required.

8. Test and Adjust
Turn on the water supply and restore the electricity or gas supply. Test the unit by running hot water and ensure proper functionality. Adjust the temperature settings as per your preference.

Maintenance and Troubleshooting

To ensure optimal performance and longevity of your tankless water heater, follow these maintenance tips:

  • Regularly clean the unit’s filters to prevent debris buildup.
  • Flush the system annually to remove mineral deposits.
  • Check for leaks and ensure all connections are secure.
  • Schedule professional maintenance at least once a year.
  • Familiarize yourself with common troubleshooting techniques, such as resetting error codes or checking gas or electrical connections.


In conclusion, tankless water heaters offer a convenient and energy-efficient solution for your hot water needs. With their compact design, continuous hot water supply, and longer lifespan, they are an excellent alternative to traditional water heaters. By considering factors like fuel type, water demand, ventilation, and installation location, you can ensure a successful tankless water heater installation. Remember to follow proper maintenance procedures and troubleshoot any issues promptly for optimal performance.

Everything You Could Ever Want to Know About Tankless Water Heater Installation

Frequently Asked Questions

It is recommended to hire a professional plumber or HVAC technician for tankless water heater installation. They have the expertise and knowledge to ensure proper installation, compliance with building codes, and safe operation.

Tankless water heaters are known for their longer lifespan compared to traditional units. With proper maintenance, they can last up to 20 years or more.

Yes, tankless water heaters require regular maintenance to ensure optimal performance. This includes cleaning the filters, flushing the system to remove mineral deposits, and scheduling professional maintenance at least once a year.

Yes, tankless water heaters are designed to provide hot water to multiple fixtures simultaneously, depending on their flow rate and capacity. However, it’s important to choose the right-sized unit based on your household’s hot water demand.

While it is possible to replace a traditional water heater with a tankless water heater, there may be some modifications required. Tankless water heaters have specific electrical or gas and venting requirements, so it’s important to ensure that your home’s infrastructure can accommodate these needs. It’s best to consult a professional plumber or HVAC technician to assess your home and make any necessary modifications.

Yes, tankless water heaters can be suitable for large households with high hot water demand. However, it’s crucial to select the appropriate size and capacity based on the number of bathrooms, appliances, and simultaneous hot water needs. Higher-flow rate models are available for larger households to ensure an adequate supply of hot water.

In many regions, there are rebates and incentives available for installing energy-efficient appliances like tankless water heaters. These incentives aim to promote energy conservation and reduce utility costs. Check with your local government or utility provider to see if there are any available programs that can help offset the cost of tankless water heater installation.


We know emergency service situations can be stressful. We remove that stress by providing transparent upfront estimates we stick to and guarantee the work we perform. Find out why our customers love working with By the Book Plumbing!

$4,369 average Rinnai Condensing Tankless Installation Price

a) Price includes 5% discount when paid with cash or check
b) Price is assuming gas supply line is adequately sized for tankless, an existing 110v electrical outlet is next to location of water heater for tankless cord to plug into, and no city permits or inspections (if applicable)
c) Flat Rate Price includes new Rinnai RU199 condensing tankless water heater, pan, water and flexible gas supply line connections, haul away of old tank style water heater, and taxes.
d) Warranty: 2 year warranty on labor against manufacturer defects, 5 year warranty on manufacturer parts, 15 year warranty on heat exchanger
e) Water Heater Location must be within reasonable access in attic; difficult access conditions that can potentially affect price include examples such as being placed directly behind air conditioner unit or locations without accessible walkway to water heater.