Technology has provided the newest forms of state-of-the-art tankless water heaters, which will suit your residence primarily because of their design of decongesting space at your home. However, different kinds of tankless water heaters are widely available in different stores and e-commerce sites. Each of these water heaters is designed to save extra space and reduce clutter, while the efficiency of water heating does not go down. The newer technologies give us the flexibility and an excellent edge compared to what we used to have back those days.

The Rinnai RL75iN Natural Gas Tankless Water Heater is one such water heater that provides tankless heating and lets you free some space in your residence or any of your commercial properties. This tankless water heater has an in-built property of condensing heat exchangers, which enhances the system efficiency to a positive level.

Rinnai RL75iN Review

buy on amazon

The installation process is way more straightforward than the old tank water heaters. The digital temperature meters help indicate the proper installation process and will immediately respond to any errors in the process. In addition, the body is made of excellent quality stainless steel, which ensures the reduction of heat loss to an optimum level. This will easily suit your requirements in homes, hotel rooms, offices.

Rinnai RL75iN Water Heater

Features of the Rinnai RL75iN Water Heater

  • The Rinnai RL75iN is energy-star certified, ensuring product safety and energy efficiency. This is a gas-operated device with natural gas and propane to ease the flow of the constant heat energy in heating the flowing cold water. The system works so that the cold water runs through a chamber of hot water faucets to ensure the heating of the water instantly. 
  • The presence of an enhanced digital meter ensures the complete safety of the product from long-term usage and replacement updates. This means the user will indicate the machine’s wear and tear when the tank is due for repairs. This gives the track indication of any severe electrical hazard which might turn up.
  • Heat Lock: Heat lock or temperature lock is one of the features which ensures that the Rinnai RL75iN temperature is controlled and the accidental or improper change of the water temperature is controlled. This feature is handy in those households where the presence of toddlers and infants requires consistent water temperature.
  • Air Quality Check: This system gets the approval of the South Coast Air Quality Management District of nitrous oxide emission levels. This will ensure the product is an eco-friendly system and help in the dynamic water flow of hot water without any hazardous discharge.

Advantages of the Rinnai RL75iN

  • Installation Process: The Rinnai RL75iN tankless water heater is one of those easy-to-install systems. The clarity of the installation features and the provision of the system manual will guide the users to install, even if the person is a non-licensed dealer. The foremost warning given to all users is not to remove the cover while installing the product. Instead, the users shall find the 0.5-inch compression fittings, which adequately fit the apparatus.
  • Space Reduction: If you are staying where finding free space is an issue, you are looking at the right product. Regardless of place, this can easily fit almost anywhere. For example, a person with concerns about minimum space issues can opt for this heater, owing to the above reasons. 
  • Product Efficiency: Product efficiency is a big plus, considering numerous factors that define the product’s lucid utility. The built-in external temperature system controls heat exchange, ensuring heating the flow of water a lot quicker. The power consumption of the tankless water heater is on the minimal side. So on the positive side, apart from energy efficiency, space clearance is a thing to reconsider. Being an ecofriendly system, there are no additional technicalities required to eliminate greenhouse gases. 

Things to be aware of

  • There is not much negativity; however, one cannot run the system in more than one fixture; if you intend to run this for different purposes at once, you cannot do this!


The Rinnai RL75iN tankless water heater is a compact, easy to install a water heater, which amazingly fits anywhere in your residence and takes minimum space. There might be a small requirement of refurbished wiring, as the system requires those wires which can withstand a 40-ampere circuit, 240 V circuit break. The 8-gauge wire will suit the requirements as it can withstand a whopping 9 kW and 30-ampere power at maximum. In this case, the investment for wiring might be a factor to consider.

Bottom Line

In a nutshell, investing money in this feature-packed yet easy-to-use tankless water heater has its side of maximum positives and minimum negative impacts. The Rinnai RL75iN tankless water heater design is highly user-friendly and will ensure hassle-free operations. The digital meter will indicate how well you operate the tank and indicate some technical snags. So login to Amazon or visit your nearest appliance shops to buy this small yet handy tankless water heater right now.

buy on amazon