When it comes to ensuring a steady supply of hot water for your home, the Rinnai V65iN Tankless Hot Water Heater is a standout solution. In this in-depth review, we’ll explore why this natural gas-powered indoor installation water heater deserves a place in your home. From its space-saving design to its remarkable energy efficiency, there’s much to love about the Rinnai V65iN.

Rinnai V65iN Overview:

Let’s begin with the basics. The Rinnai V65iN Tankless Hot Water Heater is a sleek and efficient addition to your home. Here’s what you need to know:

  • Product: Rinnai V65iN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Indoor Installation.
  • Dimensions: 17.5 x 30 x 13 inches.
  • Energy Efficiency: This tankless water heater boasts an impressive Energy Factor of .82 for both gas types, which means it operates with exceptional efficiency, saving you money on your energy bills.
  • Temperature Control: The unit comes pre-set at 120°F, but you can adjust it to 140°F according to your preferences.
  • Compatibility: It works well with all Rinnai Digital Controllers, so you can quickly and accurately control your hot water.
  • Certification: Rinnai V65iN is certified for installation in manufactured (mobile) homes, making it a versatile choice.
  • Error Code Indicator: The integrated Error Code Indicator helps diagnose and resolve issues quickly.
  • Color Options: Choose the V65iN – Natural Gas/6.5 GPM model to suit your preferences.
  • Power Source: Natural gas powers this tankless water heater.
  • Weight: It weighs 45.6 pounds, making it relatively easy to handle during installation.

Performance and Benefits:

Now, let’s consider why the Rinnai V65iN is a wise choice for your hot water needs:

Energy Conservation:

This tankless water heater only heats water when necessary, saving energy and ensuring you never run out of hot water.

Impressive Flow Rate:

With a flow rate of up to 6.5 gallons per minute, it can easily supply hot water to up to five fixtures simultaneously. Say goodbye to cold showers!

Innovative Design:

The unit includes enhanced scale detection, preventing long-term damage and prolonging its lifespan.


Rinnai stands behind the V65iN with a 15-year warranty for the heat exchanger, five years for labor, and one year for parts.

WiFi Control:

Although the Control module for WiFi control isn’t included, it’s an option for those who desire remote control and monitoring.

Professional Installation:

We strongly recommend professional installation. Visit Rinnai’s website to find a qualified technician to ensure a smooth setup.


Explore Rinnai’s product guides, manuals, energy guides, and warranty information to select the perfect tankless water heater for your home.

Where to Buy the Rinnai V65iN Tankless Hot Water Heater

You may wonder where to find it if you want to upgrade your hot water system with the Rinnai V65iN Tankless Hot Water Heater. We’ll provide insight into two popular options: Home Depot and Amazon.

1. Home Depot:

Home Depot is a well-known home improvement retailer with a broad selection of products, including the Rinnai V65iN Tankless Hot Water Heater. Here’s what you can expect when considering Home Depot as your purchase destination:

  • Physical Presence: Home Depot operates numerous physical stores across the United States, which can be convenient if you prefer an in-store experience or need immediate access to the product.
  • Expert Assistance: In-store associates can provide guidance and answer your questions, making it easier to select the suitable model for your needs.
  • Delivery Options: Home Depot offers delivery services, ensuring your new water heater arrives at your doorstep hassle-free.
  • Warranty Information: You can inquire about Home Depot’s warranty and return policy for added peace of mind.

2. Amazon:

Amazon is a global e-commerce giant offering many products, including the Rinnai V65iN Tankless Hot Water Heater. Here’s what you should consider when looking at Amazon as your purchase platform:

  • Wide Selection: Amazon provides access to various sellers, offering you more purchasing options and competitive pricing.
  • Convenience: Shopping on Amazon is convenient, especially if you prefer online shopping and doorstep delivery.
  • Customer Reviews: You can read reviews from other buyers to gain insights into their experiences with the product.
  • Prime Benefits: If you’re an Amazon Prime member, you may be eligible for fast and often free shipping.

Comparison: Home Depot vs. Amazon:

Choosing between Home Depot and Amazon depends on your preferences and priorities:

  • Home Depot might be your best bet if you prefer an in-store experience, the ability to consult with experts, and the convenience of physical locations.
  • Amazon could be the way to go if you’re looking for a wide range of purchasing options, the ease of online shopping, and access to customer reviews.

Remember to compare prices, shipping options, and discounts before purchasing. Regardless of where you buy the Rinnai V65iN Tankless Hot Water Heater, you’ll be well on your way to enjoying endless hot water and energy savings.


In conclusion, the Rinnai V65iN Tankless Hot Water Heater combines efficiency, reliability, and convenience in a compact package. It’s a great addition to any home, providing hot water when you need it without wasting energy. Plus, with Rinnai’s comprehensive warranty and support, you can know your investment is protected.

Before deciding, check Rinnai’s Groundwater Temperature Map to ensure that this heater is the optimal choice for your region. And if you’re considering international use, remember that you may need an adapter or converter due to its compatibility with US outlets and voltage.

To explore this efficient and compact hot water heating solution further, visit Rinnai’s official website for more details, product videos, and the “Find a Rinnai PRO” page to connect with a qualified technician for professional installation.

Make your home more comfortable and energy-efficient with the Rinnai V65iN Tankless Hot Water Heater. Never run out of hot water again, and enjoy the benefits of a reliable and space-saving appliance. Your daily routines just got a whole lot cozier!

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