The 10 Best Indoor Tankless Water Heater in January 2023

Laurence Tyler
  Jan 31, 2023 4:08 AM

Need the top best indoor tankless water heater canvas right away? In such case, your quest is ended. We'd be immensely thankful if you didn't have us sift through hundreds of articles to get the information we needed.
How concerned are you that there are too many great options? You have to force the thought out of your mind. The purpose of this essay is to provide you with the information you need to make a well-informed choice. Why wait if that's the case? There is undeniable evidence!

Top choices

1. Best Overall: Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural

  • Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE199iN model
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once) more

Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation

2. Best Value: Rinnai V65iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up

  • Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE160iN model
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once) more

Rinnai V65iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 6.5 GPM

3. Best Budget: Rinnai V94iN Non-Condensing Natural Gas Tankless Water Heater, Indoor Installation,

  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting more

Rinnai V94iN Non-Condensing Natural Gas Tankless Water Heater, Indoor Installation, Up to 9.8 GPM

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Top Picks

Best sale: Rinnai RU199iN Condensing Tankless Hot Water Heater, Natural Gas, Indoor

The Rinnai RU199iN is a condensing tankless hot water heater that runs on natural gas and is designed for indoor installation. It is a high-efficiency, on-demand water heater that heats water as it flows through the unit, providing a continuous supply of hot water without the need for a storage tank.

This model has a maximum flow rate of 11 gallons per minute (GPM), which makes it suitable for a small to medium-sized household or commercial use. It features a compact, lightweight design that is easy to install and can be wall-mounted. It also has a digital temperature display that shows the temperature of the outgoing water, as well as a diagnostic system that makes it easy to diagnose and fix any issues.

The RU199iN is a condensing water heater, which means it has a secondary heat exchanger that captures the heat from the flue gases and uses it to preheat the incoming cold water, increasing the overall energy efficiency of the unit.

It's important to note that this model requires proper ventilation and a professional installation by a licensed technician, as well as access to natural gas line to function. It's also important to check the local regulations, certifications and building codes before purchasing this unit.

Overall, The Rinnai RU199iN is a good option for those looking for an efficient, on-demand, natural gas-powered water heater.

Best overall: Rinnai V65iP Non-Condensing Propane Tankless Water Heater, Indoor

The Rinnai V65iP is a non-condensing tankless water heater that runs on propane and is designed for indoor installation. It is an on-demand water heater that heats water as it flows through the unit, providing a continuous supply of hot water without the need for a storage tank.

This model has a maximum flow rate of 6.5 gallons per minute (GPM), which makes it suitable for a small to medium-sized household or commercial use. It features a compact, lightweight design that is easy to install and can be wall-mounted. It also has a digital temperature display that shows the temperature of the outgoing water, as well as a diagnostic system that makes it easy to diagnose and fix any issues.

The V65iP is a non-condensing water heater, which means it does not have a secondary heat exchanger to recover the heat from the flue gases and use it to preheat the incoming cold water, which results in less efficiency than condensing water heaters.

It's important to note that this model requires proper ventilation and a professional installation by a licensed technician, as well as access to a propane line to function. It's also important to check the local regulations, certifications and building codes before purchasing this unit.

Overall, The Rinnai V65iP is a good option for those looking for an on-demand, propane-powered water heater, but with less efficiency than condensing water heaters.

Best budget: Rinnai V94iN Non-Condensing Natural Gas Tankless Water Heater, Indoor

The Rinnai V94iN is a non-condensing tankless water heater that runs on natural gas and is designed for indoor installation. It is an on-demand water heater that heats water as it flows through the unit, providing a continuous supply of hot water without the need for a storage tank.

This model has a maximum flow rate of 9.8 gallons per minute (GPM), which makes it suitable for a large-sized household or commercial use. It features a compact, lightweight design that is easy to install and can be wall-mounted. It also has a digital temperature display that shows the temperature of the outgoing water, as well as a diagnostic system that makes it easy to diagnose and fix any issues.

The V94iN is a non-condensing water heater, which means it does not have a secondary heat exchanger to recover the heat from the flue gases and use it to preheat the incoming cold water, which results in less efficiency than condensing water heaters.

It's important to note that this model requires proper ventilation and a professional installation by a licensed technician, as well as access to a natural gas line to function. It's also important to check the local regulations, certifications and building codes before purchasing this unit.

Overall, The Rinnai V94iN is a good option for those looking for an on-demand, natural gas-powered water heater for large-sized households or commercial use, but with less efficiency than condensing water heaters.

 

Buying Guides

An indoor tankless water heater is a type of water heating system that heats water as it flows through the unit, providing a continuous supply of hot water without the need for a storage tank. Unlike traditional tank-type water heaters, tankless water heaters do not store hot water, but rather heat it on demand. This means that they do not waste energy keeping a large tank of water hot, leading to energy savings and space savings.

Indoor tankless water heaters can be powered by either natural gas or electricity and are designed to be installed inside the home, typically in a closet, utility room, or other indoor location. They are available in a variety of sizes and flow rates to accommodate different hot water needs. They also feature advanced controls, such as WiFi connectivity and the ability to be controlled through a smartphone app.

Indoor tankless water heaters are ideal for homeowners or businesses looking for an efficient and space-saving solution for their hot water needs. They are particularly well-suited for homes with limited space for a traditional water heater and for those who want to reduce their energy consumption and costs. They also have a longer lifespan compared to traditional tank-type water heaters.

It's important to note that indoor tankless water heaters require proper ventilation and a professional installation by a licensed technician, as well as access to a natural gas line or a dedicated electrical circuit to function. It's also important to check the local regulations, certifications, and building codes before purchasing this unit.

When choosing an indoor tankless water heater, there are several factors to consider:

  • Size and flow rate: Indoor tankless water heaters come in various sizes and flow rates, so make sure to choose a unit that is appropriately sized for your home or business. Consider the number of bathrooms, residents, and the overall hot water usage in your home before making a decision.

  • Fuel source: Indoor tankless water heaters can be powered by either natural gas or electricity. Consider the availability and cost of each fuel source in your area and choose the one that is most convenient and cost-effective for you.

  • Energy efficiency: Look for a unit with a high energy efficiency rating, such as the Energy Factor (EF) or the Thermal Efficiency (TE). These ratings will give you an idea of how much energy the unit uses to heat water.

  • Features: Some indoor tankless water heaters come with additional features such as WiFi connectivity, self-diagnostics, and freeze protection.

  • Brand reputation and warranty: Look for a unit from a reputable brand and choose one with a good warranty period, usually ranging from 6-10 years.

  • Installation: Indoor tankless water heaters require proper ventilation and a professional installation by a licensed technician, as well as access to a natural gas line or a dedicated electrical circuit to function.

  • Cost: Indoor tankless water heaters tend to be more expensive than traditional tank-type water heaters, but they may offer significant energy savings over time. It is important to calculate the total cost of ownership, including the purchase price, installation cost and energy savings to determine if it is a good investment for you.

  • Climate and location: Indoor tankless water heaters are suitable for most climates and locations. If you live in a cold climate region, it is recommended to choose a unit with freeze protection feature.

Installation of Rinnai Tankless Water Heater RU199iN by Waterheaters.com
 

Conclusion

The components we examined to determine the most effective best indoor tankless water heater . Are these the only criteria we should be considered? Not at all! Our website is constantly updated to provide you with the most current and accurate information.
The last factor that we consider is the level of satisfaction our readers experience as this is the most significant part of our list of factors to consider. We want to express our sincere appreciation to all our readers! If you think that any of the terms or information that are listed in this list is not accurate or out of date, please get in touch with us. The list is regularly updated to reflect any suggestions. We'd like to hear from you about your suggestions.