RHEEM RTEH55 Thermostatic Tankless Electric Water Heater 020352758138 5.5KW

( Brand: Rheem ), ( Manufacturer Part Number: RTEH55 ), ( Power Source: Electric ), ( Color: Gray ), ( Water Connection: 3/8 Inches ), ( Type: Tankless Water Heater/boiler ), ( Heating System: Instantaneous ), ( Voltage: 240 V ), ( Item Height: 9.75 Inches ), ( Amperage: 23 A ), ( Mounting Location: Indoor, Wall ), ( Power: 5500 W ), ( Item Width: 5 Inches ), ( UPC: 020352758138 )

Review RHEEM Non thermostatic Commercial Tankless Electric Water Heater 5.5kw

The Rheem RTEH55 is a non-thermostatic tankless electric water heater with a power output of 5.5 kilowatts. This model is designed to provide an endless supply of hot water for residential applications, making it an excellent choice for homes with high hot water demand.

The RTEH55 is compact and lightweight, with dimensions of 14.5 inches by 10 inches by 3 inches and a weight of just 14.5 pounds. This small footprint allows it to be easily installed in various locations, including closets, utility rooms, and garages, without taking up too much space.

This electric tankless water heater utilizes Rheem's patented ElementFlex technology, which allows for multiple elements to be installed in parallel, providing greater efficiency and faster recovery times. The unit also features a copper heat exchanger for enhanced durability and longevity.

The RTEH55 is equipped with a digital temperature controller, which enables precise temperature settings from 80 F to 140 F. This controller also includes a diagnostic display, which indicates any fault codes and provides troubleshooting assistance.

The unit is designed with safety features in mind, including a thermal cutoff switch, which shuts off the power to the unit if the water temperature becomes too high. It also has a ground fault circuit interrupter (GFCI) to protect against electrical faults.

This tankless water heater is Energy Star certified, which means it meets the strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy. It also comes with a 6-year limited warranty on the heat exchanger and a 1-year limited warranty on parts.

In summary, the Rheem RTEH55 is a compact, efficient, and safe tankless electric water heater that provides an endless supply of hot water for residential applications. Its digital temperature controller, multiple elements, and safety features make it a reliable and convenient choice for homeowners. With its Energy Star certification and generous warranties, it offers excellent value for its price.

The Rheem RTEH55 non-thermostatic tankless electric water heater is a popular choice for those seeking an energy-efficient and continuous hot water solution. Here are some pros and cons to help you make an informed decision:

1. Energy Efficient: Tankless water heaters, in general, are known for their energy efficiency as they heat water only when it's needed, reducing standby energy loss.

2. Continuous Hot Water: Since this water heater doesn't store water, it can provide a constant supply of hot water, eliminating the worry of running out of hot water, especially during peak usage times.

3. Compact Design: The Rheem RTEH55 is relatively small and lightweight, making it a suitable option for homes with limited space.

4. Easy Installation: Electric tankless water heaters typically have a simpler installation process compared to gas-fired models, as they don't require venting or a dedicated gas line.

5. Longer Lifespan: Tankless water heaters generally have a longer lifespan than traditional tank water heaters, as they don't have a storage tank that can rust or corrode.

1. Higher Upfront Cost: Tankless electric water heaters, like the Rheem RTEH55, tend to have a higher upfront cost compared to tank water heaters due to their more complex design and higher energy efficiency.

2. Limited Flow Rate: The flow rate of the Rheem RTEH55 is 5.5 GPM (gallons per minute), which might not be enough for simultaneous use of multiple hot water appliances.

3. Electricity Requirement: This water heater is electric, so it may lead to higher electricity bills, depending on the local electricity rates and the usage patterns.

4. Potential for Uneven Temperature: Non-thermostatic tankless water heaters, like the Rheem RTEH55, don't have a temperature control mechanism, which may lead to uneven water temperature, especially when there's a high demand for hot water.

The Rheem RTEH55 non-thermostatic tankless electric water heater is a suitable choice for homes with limited space, a need for energy efficiency, and a preference for continuous hot water. However, it may have a higher upfront cost, limited flow rate, and potential for uneven temperature. Ultimately, the decision to purchase this water heater depends on your specific needs, budget, and preferences. If you require a higher flow rate or more consistent temperature, you may want to consider a thermostatic tankless water heater or a tank water heater. If energy efficiency and continuous hot water are your top priorities, the Rheem RTEH55 could be a good fit for you.

If you're considering purchasing the Rheem RTEH55 non-thermostatic tankless electric water heater, I would recommend carefully considering your hot water needs, budget, and energy efficiency goals before making a decision. You may also want to consult with a professional plumber to help you assess whether this water heater is the best fit for your home and to ensure a proper installation.

Details:

Efficiency Level: Super High. Compact design fits in tight spaces; ADA compliant. Brand new item, open box. Installation Location: Indoor, wall-mounted.

Profile: Compact. Type: Electric tankless water heater. The choice of carrier is determined by the packages size and weight. Flexible installation mounts in any orientation.

Safe Start technology helps prevent dry-fire at start-up. Specifications: Kilowatt Rating: 5.5 kW. Rheem Non-Thermostatic Commercial Tankless Electric Water Heater 5.5kW, RTEH55 8. Currently in some large metro areas, UPS Mail Innovations is utilizing other service providers for delivery such as Roadie and Veto due to the demand staff shortages with USPS.

Application: Commercial. Highlights: Output temperature adjusts based on flow rate and incoming water. Activates with a low 0.25 GPM flow rate. Self-diagnostics with smart controls for system protection.

Built-in 3/8 compression fittings no soldering needed. Point-of-use installation saves water and time. Provides on-demand, endless hot water.

part #: rteh55 prices

• $109.99-$199.99

specifications wateheat:

• brand: Rheem
• mpn: Rteh55
• power source: Electric
• color: Gray
• water connection: 3/8 Inches
• type: Tankless Water Heater/boiler
• heating system: Instantaneous
• voltage: 240 V
• item height: 9.75 Inches
• amperage: 23 A
• mounting location: Indoor, Wall
• power: 5500 W
• item width: 5 Inches
• upc: 020352758138

general wateheat:

• condition: Open box
• Heating, Cooling Air > Water Heaters > Tankless Water Heaters

payments wateheat:

• credit card: Mastercard
• other
• wallet: Paypal

shipping wateheat:

• type: Fixed
• service: Economy, Standard, Expedited
• transit: 3-7 Days
• class: Economy, Standard, Expedited
• cost: $0.00

returns wateheat:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller
• method: Money back

seller wateheat:

• # reviews: 122431
• rating: 99.4%
• city: Cleveland, Tennessee

offer wateheat:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: August 18, 2025

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