As a plumber, I’ve worked with a wide variety of water heating systems, and over the years, one brand that consistently stands out is Rinnai. Whether I’m installing a new unit or helping clients upgrade their old systems, Rinnai tankless water heaters have become my go-to recommendation.
They offer superior performance, reliability, and customer support that sets them apart from the competition. In this blog, I’ll explain why Rinnai is the best choice for homeowners and how you can easily get one installed.
Why I Recommend Rinnai Tankless Water Heaters?

1. Energy Efficiency and Cost Savings
Rinnai tankless water heaters are highly efficient. Unlike traditional water heaters that constantly heat water, even when not in use, Rinnai’s on-demand heating system heats water only when you need it.
This can significantly reduce your energy bills, as you’re not wasting energy on keeping water hot 24/7. Over time, the savings from using a Rinnai unit can add up to a noticeable reduction in monthly utility costs.
2. Endless Hot Water Supply
One of the biggest advantages of a Rinnai tankless water heater is that it provides endless hot water. Because the system heats water as it flows through, you’ll never run out of hot water, no matter how many showers or appliances are running. This makes Rinnai perfect for large families or households with high water demands.
3. Compact Design and Space Savings
Rinnai tankless heaters are designed to be compact and space-saving. Traditional water heaters take up a lot of space in basements or utility rooms. In contrast, Rinnai units are small and can be mounted on walls, freeing up valuable space for storage or other uses.
4. Rinnai’s Exceptional Customer Support
One of the standout features of Rinnai is their customer support system. As a plumber, I’ve dealt with many manufacturers, and not all of them offer the same level of assistance that Rinnai provides. Their technical support is always available to troubleshoot any issues, offer installation guidance, or answer questions about their products.
5. Warranty programs
Their warranty programs are also among the best in the industry, covering both parts and labor for an extended period. This gives homeowners peace of mind knowing that if something does go wrong, they’re backed by a responsive support team.
For professionals like me, this support makes a huge difference. It allows me to confidently recommend their products to my clients, knowing they’ll have access to help if needed.
The Unique Benefits of Rinnai Tankless Water Heaters
Rinnai stands out for several key benefits that make it my preferred brand:

Wi-Fi Connectivity
Some Rinnai models come with smart features, allowing homeowners to control their water heater remotely via smartphone apps. You can adjust settings, monitor performance, and even receive maintenance alerts, all from your phone.
Durability
Rinnai systems are built to last. With proper maintenance, these units can easily operate for 15-20 years, which is much longer than traditional water heaters.
Eco-friendly
Rinnai products are designed with the environment in mind. By reducing energy consumption and minimizing carbon emissions, their tankless systems offer a Green Solution for water heating.
How to Get a Rinnai Tankless Water Heater?
If you’re ready to make the switch to a Rinnai tankless water heater, there are several easy ways to get one:
1. Through a Certified Installer
The best way to ensure your Rinnai system is installed properly is by hiring a certified Rinnai installer. As a licensed plumber, I recommend working with a professional who knows the ins and outs of the system. They’ll ensure the heater is installed correctly and meets all local codes and regulations.
2. Purchasing from Authorized Dealers
You can purchase Rinnai tankless water heaters from authorized dealers across the country. These dealers can help you select the right model for your home and ensure that you’re getting an authentic product backed by Rinnai’s warranty.
3. Online Retailers
Rinnai products are also available through trusted online retailers like Amazon or Home Depot. While purchasing online can be convenient, make sure the product is coming from an authorized source to protect your warranty.
4. Direct from Rinnai
Rinnai offers direct sales through their website, making it easy to browse their product lineup and order the right unit for your home. This option also comes with the added bonus of accessing official customer support if you have questions about the product before or after purchase.
5. Rinnai’s Exceptional Customer Support
One of the standout features of Rinnai is their customer support system, which is easily accessible for both homeowners and professionals. If you ever run into issues or need help, Rinnai offers several ways to get in touch with their support team:
- Phone Support: Rinnai’s customer support can be reached directly at 1-800-621-9419 for troubleshooting, product information, or warranty-related questions.
- Email Support: If you prefer, you can also email their support team at [email protected], and they’ll typically respond within one business day.
- Live Chat: For quick assistance, you can visit their official website and use the live chat feature, available during business hours.
- Find a Local Pro: Rinnai also offers a “Find a Pro” tool on their website, where you can locate certified installers and service professionals in your area.
Conclusion
When it comes to recommending a reliable, efficient, and cost-effective water heating system, Rinnai tankless water heaters top my list. Their high performance, space-saving design, and excellent customer support make them a smart investment for any homeowner.
Whether you’re looking for endless hot water, lower energy bills, or a long-lasting system, Rinnai delivers on all fronts. Plus, with multiple ways to purchase and install their units, it’s never been easier to upgrade to a tankless system.
Contact us today to learn more about how a Rinnai tankless water heater can benefit your home, or schedule an installation consultation with one of our certified professionals!
FAQs
1. What is the best tankless water heater on the market?
Rinnai is considered one of the best tankless water heater brands available due to its reliability, energy efficiency, and long lifespan.
2. Does Rinnai offer a tankless water heater with Wi-Fi control?
Yes, Rinnai offers models with Wi-Fi connectivity, like the Rinnai SENSEI™ series. With Wi-Fi integration, you can control the water heater remotely through the Control-R™ mobile app, which allows you to adjust temperature settings, monitor usage, and receive maintenance alerts.
3. Which Rinnai tankless water heater is best for large homes?
For large homes or households with higher water demands, the Rinnai RU Series is ideal. It has a high flow rate and can easily handle multiple showers and appliances running at the same time without compromising on hot water supply.
4. How do I contact Rinnai customer support for help with my water heater?
You can contact Rinnai’s customer support through multiple channels:
- Phone: 1-800-621-9419
- Email: [email protected]
- Live Chat: Available on their website during business hours.
- Find a Pro: Use the “Find a Pro” tool on their website to locate certified installers or service professionals near you.
5. How long does a Rinnai tankless water heater last?
Rinnai tankless water heaters are known for their durability and can last between 15-20 years with proper maintenance, which is longer than traditional tank heaters.
6. How much does it cost to install a Rinnai tankless water heater?
You can expect the cost to be around $1,000 to $3,000, including the unit and professional installation. For an accurate quote, it’s best to consult a certified Rinnai installer.
7. Can I install a Rinnai tankless water heater myself?
It’s recommended to hire a certified Rinnai installer. Professional installation ensures the system works correctly and complies with local regulations, and it also helps protect your warranty.
8. What maintenance does a Rinnai tankless water heater require?
To keep your Rinnai tankless water heater running efficiently, you should descale the unit annually, especially if you live in a hard water area. Regular inspections by a plumber are also recommended to ensure optimal performance.