Rheem RTEX-18 Tankless Electric Water Heater: Embrace the Future of Hot Water

Tired of waiting for hot water? Frustrated with lukewarm showers and fluctuating temperatures? The Rheem RTEX-18 tankless electric water heater is here to revolutionize your hot water experience. This cutting-edge technology provides instant and endless hot water while saving you energy and valuable space. Join us as we delve into the science behind tankless water heaters and explore how the Rheem RTEX-18 can elevate your daily routine.

Overview

The Rheem RTEX-18 is an 18kW electric tankless water heater that delivers hot water on demand, eliminating the need for a bulky storage tank. This means no more waiting for the tank to refill and reheat, just instant hot water whenever you need it.

Design Philosophy - Efficiency and Convenience

Rheem has designed the RTEX-18 with a focus on maximizing efficiency and user convenience. Its compact design allows for flexible installation in various locations, while the digital thermostatic control provides precise temperature regulation. By eliminating standby heat loss associated with traditional tank water heaters, the RTEX-18 helps you save on energy costs and reduce your environmental footprint.

Digital Thermostatic Control: Precision at Your Fingertips

The RTEX-18 features an external digital thermostatic control with an LED display, allowing you to set your desired water temperature with +/- 1 degree accuracy. This level of precision ensures a comfortable and consistent hot water experience for every application, from showers and baths to dishwashing and laundry. This feature addresses a common pain point with traditional tank water heaters, where temperature fluctuations can lead to uncomfortable showers or scalding risks.

Self-Modulation Technology: Intelligent Energy Use

One of the key innovations of the Rheem RTEX-18 is its advanced self-modulation technology. This intelligent system constantly monitors the incoming water temperature and flow rate, adjusting the power output to precisely match your hot water demands. This ensures that you only use the energy needed to heat the water you use, maximizing efficiency and minimizing waste. This technology directly contributes to the RTEX-18’s high efficiency rating of 99.8%, significantly reducing energy consumption compared to traditional tank-style water heaters.

Simple Installation: Hassle-Free Setup

The Rheem RTEX-18 is designed for simple installation with bottom 3/4 inch NPT water connections. This straightforward design makes it easier for qualified plumbers to install the unit, saving you time and money. However, it’s important to note that while the plumbing connections are simplified, the electrical requirements for this unit are more demanding due to its high power output. Always consult a qualified electrician for proper installation and to ensure your home’s electrical system can handle the load.

Compact Design: Space-Saving Solution

Unlike traditional tank water heaters that take up significant space, the Rheem RTEX-18 boasts a compact and space-saving design. This allows for flexible installation options, even in smaller homes or apartments where space is limited. You can reclaim valuable floor space and enjoy a clutter-free environment. This feature is particularly appealing to those living in urban areas or smaller dwellings where space is at a premium.

No Venting Required: Installation Flexibility

Traditional gas-powered tankless water heaters require venting to exhaust combustion byproducts. The Rheem RTEX-18, being electric, does not require any venting, providing even greater flexibility in installation location. You can install it virtually anywhere in your home, as long as it meets the necessary electrical and plumbing requirements. This eliminates the need for costly and complex venting systems, further simplifying the installation process.

Durable Copper Immersion Heating Elements: Built to Last

The Rheem RTEX-18 utilizes durable copper immersion heating elements, ensuring long-lasting performance and reliable hot water delivery. Copper is an excellent conductor of heat, allowing for efficient and rapid water heating. These elements are also field serviceable, meaning they can be easily replaced if needed, prolonging the lifespan of the unit.

Flow Rate Considerations: Meeting Your Hot Water Needs

The Rheem RTEX-18 has a flow rate of up to 4.4 GPM (gallons per minute). This is sufficient for many households, particularly those with a single bathroom or in warmer climates where the incoming water temperature is higher. However, in colder climates or larger homes with multiple bathrooms, you may experience a reduced flow rate to maintain the desired water temperature. It’s crucial to consider your household’s hot water demands and incoming water temperature when determining if this unit is suitable for your needs. If necessary, you can opt for a higher kW model or consider installing multiple units to meet higher demand.

Compatibility with Solar Water Heating Systems: Enhancing Energy Efficiency

The Rheem RTEX-18 is compatible with solar water heating systems. This allows you to integrate the unit with solar panels, further reducing your energy consumption and reliance on traditional electricity sources. By preheating the water with solar energy, the RTEX-18 requires less electricity to reach the desired temperature, resulting in significant cost savings and a reduced environmental impact. This feature aligns with the growing trend of sustainable living and appeals to environmentally conscious consumers.

Conclusion

The Rheem RTEX-18 tankless electric water heater represents a significant leap forward in hot water technology. With its instant, endless hot water supply, energy-saving features, and space-saving design, it offers a compelling alternative to traditional tank water heaters. Embrace the future of hot water and enjoy the comfort, convenience, and efficiency of the Rheem RTEX-18.