Tankless water heaters have become increasingly popular in recent years due to their energy efficiency and space-saving design. If you’re considering making the switch to a tankless water heater, you may have some questions about the installation process.

In this article, we will address some common queries regarding tankless water heater installation, such as who typically handles the installation, what the process entails, and whether a DIY installation is feasible or if you should hire a professional. Additionally, we will provide some expert tips on how to find the right professional for your tankless water heater installation.

So, if you’re ready to learn more about tankless water heater installation, let’s dive in!

Tankless Water Heater Installation Process: What to Expect

If you’re considering upgrading to a tankless water heater, it’s important to understand the installation process and what to expect. Here’s a breakdown of the typical steps involved in a tankless water heater installation:


A professional installer will assess your home’s needs, including the size of your household and your hot water usage. They will also check your existing plumbing to determine if any upgrades or modifications are required.

Tankless water heater selection

Based on the assessment, the installer will recommend the appropriate size and type of tankless water heater for your home.

Removal of old water heater

If you’re replacing an existing water heater, the installer will remove the old unit and properly dispose of it.

Installation of the new unit

The installer will install the new tankless water heater, which typically involves mounting it to a wall and connecting it to your existing plumbing.


Tankless water heaters require proper ventilation to safely release exhaust gasses. The installer will ensure that your new unit is properly vented.


Once the installation is complete, the installer will test the new unit to ensure that it’s functioning correctly and providing hot water to your satisfaction.

Overall, the installation process for a tankless water heater typically takes a few hours to a full day, depending on the complexity of the job.

DIY vs. Professional Tankless Water Heater Installation: Which is Better?

Whether you decide to install a tankless water heater yourself or enlist the help of an expert, there are pros and cons that should be carefully weighed. Here are some things to factor in when making your decision:

DIY Tankless Water Heater Installation:

One potential advantage of a DIY installation is the possibility of saving money on installation costs. However, there is a risk of making mistakes that could lead to costly repairs down the line. Additionally, limited warranty coverage and the potential for safety hazards if the installation is not done correctly are also factors to keep in mind.

Professional Tankless Water Heater Installation:

One key advantage of hiring a professional is the guarantee that the installation will be done correctly and up to code. You’ll also enjoy full warranty coverage, which provides peace of mind in the event of any issues down the line. Finally, professional advice on selecting the right unit for your needs is another benefit of hiring a professional.

Ultimately, the decision to tackle a tankless water heater installation yourself or hire a professional comes down to your level of expertise, comfort with DIY projects, and budget. A professional installer can help you select the right unit for your home’s needs and provide ongoing maintenance and support to ensure that your tankless water heater runs efficiently and safely for years to come.

Key Takeaways

Installing a tankless water heater is a great way to improve the efficiency and comfort of your home’s hot water system. While a DIY installation can potentially save you money, it’s important to weigh the risks and benefits carefully before making a decision.Hiring a professional installer like Discount Plumbing can give you peace of mind that the job is done correctly and up to code, and ensure that your new tankless water heater runs efficiently and safely for years to come. Whatever option you choose, make sure to do your research and select the best solution for your home and budget.

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