American Reviews: Rheem Reviews of 2026

3 products Updated April 17, 2026

Rheem Products (3)

Rheem 50 Gallon ProTerra Hybrid Heat Pump Water Heater - Smart WiFi, 4X Efficiency, 10-Year Warranty

Rheem

9.9

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Pros & Cons

Pros

Exceptional energy savings and rebate eligibility
Smart app integration for remote monitoring and control
Flexible installation with top connections and duct-ready design
Premium build with glass-lined tank and stainless elements
Demand response ready for utility off-peak savings

Cons

Requires dedicated 240V electrical circuit, not plug-in
Heavy at 178 pounds, needs two people for installation
Best performance in temperate or warm climates

Detailed Review

The Rheem ProTerra 50-gallon hybrid electric heat pump water heater is designed for homeowners seeking maximum efficiency and smart features in their hot water system. It uses advanced heat pump technology to pull heat from the air, making it four times more efficient than standard electric water heaters. This model suits households of three to five people, especially in temperate or warm climates like Florida, where ambient air heat is plentiful for optimal operation.

Standout features include built-in WiFi with the EcoNet app for monitoring hot water availability, tracking energy use, and switching between efficiency or performance modes. It offers sediment diffusion to fight buildup, a premium brass drain valve for easy maintenance, and more hot water delivery than many standard electrics. Reviewers praise its ability to lower electric bills significantly while providing intelligent functions like leak sensors and app alerts.

Build quality shines with a glass-lined steel tank, stainless steel elements, overheat protection, and a temperature pressure relief valve. The floor-mount design with dimensions of 26 inches wide by 66 inches high fits most replacement scenarios, and top water connections plus duct-ready exhaust simplify installation. However, it demands a dedicated 240-volt circuit and strong WiFi signal for app functionality.

Potential drawbacks include its 178-pound weight, requiring professional help for setup, and reduced efficiency in very cold environments. Overall, this water heater excels in long-term savings and sustainability, earning top marks for those prioritizing eco-friendly, tech-savvy hot water solutions.

Key Specifications

Capacity: 50 Gallons

Power: 4500 Watts, 240 Volts, Corded Electric

Dimensions: 26" W x 22.25" D x 66" H

Weight: 178 Pounds

Material: Glass-Lined Steel

Special Features: WiFi, Energy Usage Tracking, Demand Response Ready, Vacation Mode, Digital Display

Warranty: 10-Year Tank, 1-Year In-Home Labor

Rheem PROE50 M2 RH95 50-Gallon Electric Water Heater - Professional Classic, Enhanced Brass Drain Valve, Auto Thermostat for 3-5 Person Homes

Rheem

9.8

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Pros & Cons

Pros

Space-efficient design ideal for replacements
Reliable Rheem brand with professional-grade build
Automatic temperature control and tank protection
Easy-draining brass valve speeds up servicing
Suitable for medium households with consistent hot water

Cons

Requires professional electrical installation due to 18.75 amp draw
Floor-mount only, limiting placement options
Lower flow rate may not suit high-demand simultaneous use

Detailed Review

The Rheem PROE50 M2 RH95 is a 50-gallon professional classic electric water heater tailored for medium-sized households with 3-5 people or those featuring 3+ bathrooms. As a corded electric model from the trusted Rheem brand, it provides a dependable solution for consistent hot water needs in residential settings, outperforming bulkier competitors in space efficiency.

Standout features include an automatic thermostat for steady temperature maintenance, a robust anode rod for superior tank protection, and resistored stainless steel elements in an isolated tank design. The enhanced-flow brass drain valve makes routine maintenance straightforward, while the 0.95 efficiency rating helps optimize energy use. Real-world performance shines in delivering reliable hot water, with the visible LED InfoCue offering at-a-glance monitoring.

Build quality reflects professional standards, with a gray finish, floor-mount setup, and dimensions of 23in W x 48in H that suit most utility spaces. The temperature and pressure relief valve adds essential safety. Customers appreciate the smooth delivery and initial reliability, aligning with Rheem's leadership in water heating.

Potential drawbacks include the need for skilled installation to handle wiring and the floor-only mounting, which may not fit all layouts. Overall, this water heater excels for those seeking durability and efficiency without excessive bulk.

Verdict: A top choice for homeowners upgrading their water heating system, offering long-term value through Rheem's proven engineering.

Key Specifications

Capacity: 50 Gallons

Power Source: Corded Electric, 18.75 Amps

Dimensions: 23" W x 48" H x 48" D

Efficiency: 0.95

Special Features: Enhanced-flow brass drain valve, automatic thermostat, isolated tank design, resistored stainless steel elements

Mount Type: Floor mount

Flow Rate: 0.35 Gallons Per Minute

Rheem RTEX-18 18kW 240V Tankless Electric Water Heater - Endless Hot Water, Energy Efficient Whole Home Gray

Rheem

9.5

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Pros & Cons

Pros

Highly energy efficient at 99.8% with on-demand heating
Space-saving and easy to install under sinks or on walls
Continuous hot water supply even during peak use
Simple digital display for accurate temperature control
Field-serviceable elements for straightforward maintenance

Cons

Requires 240V power and two 40A breakers for installation
Performance optimal in warmer climates or mid-range demand
Larger footprint than point-of-use point models

Detailed Review

The Rheem RTEX-18 is a powerful 18kW tankless electric water heater suited for mid-range whole-home applications or single showers, particularly in regions like the Midwest with moderate groundwater temperatures. It provides up to 4.4 gallons per minute of hot water, enough for one shower and sinks, making it perfect for small to medium households seeking reliable, endless hot water without a bulky tank.

Standout features include advanced self-modulation that adjusts power to match demand, ensuring energy efficiency and up to 50% savings on bills compared to tank models. The external digital thermostatic control with LED display offers precise adjustments up to 140 degrees Fahrenheit, while copper immersion elements deliver consistent performance. In real-world use, it excels at providing immediate hot water, reducing waste and supporting simultaneous fixtures without temperature drops.

Build quality shines with its sleek gray stainless steel construction, wall-mount design measuring 14.5 inches wide by 18.25 inches high, and simple 3/4-inch NPT water connections. No venting is required, allowing installation in tight spaces like closets or under sinks. The unit's 99.8% efficiency and durable, serviceable components make it a robust choice for long-term reliability.

Potential drawbacks include the need for a 240V electrical setup with two 40-amp breakers, which may require professional wiring, and slightly reduced flow in very cold climates. Overall, the RTEX-18 offers exceptional value for efficient, space-conscious hot water needs.

Verdict: Highly recommended for homeowners upgrading to tankless for energy savings and convenience, earning its top rank in water heaters with proven performance.

Specifications

Key Specs:

Power: 18kW, 240V AC
Flow Rate: 4.4 GPM
Max Temperature: 140°F
Efficiency: 99.8%
Dimensions: 14.5"W x 18.25"H x 3.5"D
Weight: 14.78 lbs
Connections: 3/4" NPT
Breakers: 2 x 40A
Material: Stainless Steel
Mount: Wall

Rheem Brand Guide

Brand Overview

Rheem stands out in the competitive water heaters market with products that prioritize efficiency, durability, and user-friendly features. Known for high customer ratings, such as the 5.0/5 for their Smart High Efficiency Hybrid Heat Pump Water Heater, Rheem delivers value through robust construction and innovative designs. Their reputation is built on consistent performance in water heaters & parts, making them a go-to for reliable plumbing solutions.

What sets Rheem apart is their emphasis on energy savings and long-term warranties, like the 10-year coverage on select models. They excel in key categories including hybrid heat pumps, professional electric water heaters, and tankless units, appealing to a wide range of homeowners. Products like the PROE50 M2 RH95 50-Gallon Professional Classic Medium Residential Electric Water Heater (4.6/5 rating) highlight their commitment to quality components such as enhanced-flow brass drain valves and anode rods for corrosion protection.

What to Expect from Rheem Products

Rheem products share common strengths like superior build quality, efficient operation, and thoughtful design elements tailored for residential plumbing needs. Their water heaters feature automatic thermostats, high amperage capabilities (e.g., 18.75 Amps in professional models), and sleek gray finishes that blend into modern homes. Energy-efficient options, such as the hybrid heat pump model, reduce utility costs while maintaining hot water supply.

High ratings across the board: 5.0/5 for smart hybrids, 4.6/5 for classic electrics, and 4.2/5 for tankless units like the 18kW 240V model.
Durable features: Brass drain valves, anode rods, and 10-year warranties ensure longevity.
Versatile sizing: 50-gallon tanks suit families, while tankless designs save space.

Priced competitively for their features, Rheem targets homeowners, contractors, and DIY enthusiasts looking for dependable performance without complexity. Best for those in water heaters who value efficiency and low maintenance. The tankless 18kW 240V Electric Water Heater offers on-demand hot water, ideal for smaller households or point-of-use installations. Overall, expect products that outperform in real-world use, backed by strong reviews.

In summary, Rheem's design philosophy focuses on practicality and innovation, positioning them as leaders in water heaters & parts. Whether replacing an old unit or upgrading for smart features, their lineup provides options for every need.

Frequently Asked Questions

Yes, Rheem is highly regarded for water heaters, with top ratings like 5.0/5 for their Smart High Efficiency Hybrid Heat Pump model and 4.6/5 for the PROE50 professional electric unit. They offer durable builds, energy efficiency, and features like 10-year warranties. Customers praise their reliability for residential use.

Standouts include the 50 Gal. Smart High Efficiency Hybrid Heat Pump Water Heater (5.0/5) for energy savings, the PROE50 M2 RH95 50-Gallon Professional Classic (4.6/5) with enhanced drain valves, and the 18kW 240V Tankless (4.2/5) for space-saving on-demand hot water. Choose based on tank vs. tankless needs.

Rheem excels in efficiency, especially hybrid heat pump models that use ambient air for heating, reducing energy use significantly. Electric and tankless options also feature automatic thermostats and high-efficiency elements. They suit eco-conscious homeowners aiming to lower bills.

Many Rheem models, like the 50 Gal. Smart Hybrid, come with a 10-year warranty. Professional electrics include robust protection via anode rods. Always check specific product details for coverage on tanks and parts.

Rheem's 18kW 240V Tankless Electric Water Heater (4.2/5) is ideal for smaller homes, apartments, or supplemental use where space is limited. It provides endless hot water efficiently, perfect for 1-2 bathrooms without a full tank system.