Rheem Tankless Water Heaters
Explore Rheem’s technology, innovation and top-rated collections
Introduction
- Brand History
- Rheem is a leading American water heating company founded in 1925, with nearly a century of experience in manufacturing water heating solutions. The company has been a pioneer in tankless water heater technology and has established itself as one of the most trusted brands in North America.
- Reputation
- Rheem is widely recognized for reliability, innovation, and quality craftsmanship. The brand consistently ranks among the top water heater manufacturers and is trusted by both homeowners and contractors for delivering durable, high-performance products.
- Specialization
- Rheem specializes in comprehensive water heating solutions including gas and electric tankless water heaters, traditional tank water heaters, hybrid heat pump units, and commercial systems. They focus heavily on energy-efficient technologies and smart home integration.
Technologies & Innovation
- Proprietary Features
- Rheem tankless units feature advanced condensing technology, modulating gas valves for precise temperature control, freeze protection systems, and exclusive EcoNet smart technology integration. Many models include built-in recirculation pumps and advanced venting options.
- Energy Efficiency
- Rheem tankless water heaters achieve up to 0.96 Uniform Energy Factor (UEF) ratings, with ENERGY STAR certified models available. Their condensing technology captures and reuses heat from exhaust gases, significantly improving overall efficiency and reducing operating costs.
- Smart Controls
- EcoNet technology enables WiFi connectivity for remote monitoring and control via smartphone apps. Users can adjust temperature settings, monitor usage patterns, receive maintenance alerts, and track energy consumption. Professional monitoring and diagnostic capabilities are also available.
- Certifications
- Rheem tankless units are ENERGY STAR certified, meet strict NOx emission standards, and comply with AHRI, CSA, and UL safety certifications. Many models qualify for federal tax credits and local utility rebates.
Best Use Cases
- Residential Use
- Ideal for single-family homes, condos, and apartments where space savings and endless hot water are priorities. Excellent for homes with 2-4 bathrooms, families with high hot water demand, and properties where basement or utility room space is limited.
- Commercial Use
- Well-suited for small to medium commercial applications including restaurants, salons, small offices, and multi-unit residential buildings. Rheem offers commercial-grade models with higher flow rates for demanding applications.
- Climate Compatibility
- Rheem tankless units perform well in various climates with freeze protection down to -30°F when properly installed. Models are available for both indoor and outdoor installation, with outdoor units designed to withstand harsh weather conditions.
- Installation Types
- Suitable for both retrofit installations and new construction. Available in indoor and outdoor models with flexible venting options including concentric, separate intake/exhaust, and direct vent configurations to accommodate various installation scenarios.
Why Choose Rheem?
- Unique Selling Points
- Rheem offers the EcoNet smart technology platform, industry-leading condensing efficiency, comprehensive product lines covering all price points, strong contractor support network, and innovative features like built-in recirculation and leak detection systems.
- Comparative Advantages
- Superior customer service and technical support, extensive dealer network for easy installation and service, competitive pricing across all market segments, proven reliability with lower failure rates, and comprehensive smart home integration capabilities that exceed many competitors.
- Warranty
- Rheem provides industry-leading warranty coverage with up to 12 years on heat exchanger, up to 5 years on parts, and 1 year on labor. Extended warranty options are available, and the company has a strong track record of honoring warranty claims promptly.
Rheem Best Sellers
| Image | Product Name | SKU | List Price | Low Price | Reviews | Rating | Action |
|---|---|---|---|---|---|---|---|
 | Rheem Retex-18 Performance Electric Tankless Water Heater | 18164597963582389896 | — | $319.99 | 405 | 3.5/5 | View Details |
 | Rheem RETEX-27 Electric Tankless Water Heater | 17496484255239467686 | — | $499.00 | 311 | 3.9/5 | View Details |
 | Rheem Performance Platinum 11 GPM Natural Gas Tankless Water Heater | 11710709912158122779 | — | $1,449.00 | 187 | 3.5/5 | View Details |
 | Rheem RTEX-13 13 KW Indoor Tankless Electric Water Heater | 9079513431722022257 | — | $262.00 | 122 | 4.5/5 | View Details |
 | Rheem Performance 11 kW Self-Modulating Tankless Electric Water Heater RETEX-11 | 16059510970086078875 | — | $245.00 | 69 | 3.7/5 | View Details |
 | Rheem Performance 24 KW Self-Modulating Electric Tankless Water Heater | 4952248421309019523 | — | $548.93 | 59 | 4.1/5 | View Details |
 | Rheem RTEX-18 Electric Tankless Water Heater | 7920860133981164464 | — | $405.00 | 52 | 3.9/5 | View Details |
 | Rheem RTG-70XLN-1 Outdoor Natural Gas Tankless Water Heater | 7292610305216592197 | — | $619.95 | 34 | 4.6/5 | View Details |
 | Rheem RTG Series 180 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater | 17045681311151503468 | — | $1,410.58 | 30 | 4.5/5 | View Details |
 | Rheem RTG-70XLP-1 Outdoor Propane Tankless Water Heater | 16141828078706606415 | — | $804.00 | 29 | 4.9/5 | View Details |
 | Rheem RTEX-24 24 KW Indoor Tankless Electric Water Heater | 6659963298675674041 | — | $549.00 | 24 | 4.2/5 | View Details |
 | Rheem RTEX-04 Electric Tankless Water Heater | 14926496861932029317 | — | $185.00 | 20 | 3.9/5 | View Details |
 | Rheem Performance Tankless Electric Water Heater RETEX-04T | 14600403214783141193 | — | $184.99 | 20 | 2.2/5 | View Details |
 | Rheem RTEX-04T 3.5kW Point of Use Thermostatic Tankless Electric Water Heater | 10014189896918284667 | — | $184.99 | 20 | 2.2/5 | View Details |
 | Rheem Performance Tankless Electric Water Heater RETEX-06T | 727067447563069532 | — | $227.14 | 18 | 3.3/5 | View Details |
 | Rheem RTGH-RH11DVLN Prestige 11 GPM 199000 BTU 120 Volt Natural Gas Whole House Tankless Water Heater with Built-in Recirculation Pump | 8653347402880789560 | — | $1,635.70 | 17 | 4.5/5 | View Details |
 | Rheem Performance Plus Tankless Water Heater 701317 | 4842206524585792476 | — | $779.99 | 12 | 4.2/5 | View Details |
 | Rheem Performance Platinum 8.4 GPM Super High Efficiency Tankless Water Heater 701145 | 3047287646683861876 | — | $849.00 | 12 | 4.2/5 | View Details |
 | Rheem Performance Platinum Tankless Water Heater | 17091557282526851133 | — | $924.00 | 11 | 3.9/5 | View Details |
 | Rheem Prestige High Efficiency Tankless Water Heater | 15845965364197191530 | — | $929.95 | 9 | 4.7/5 | View Details |
 | Rheem Electric Tankless Water Heater RTEX-08 | 996430836950490210 | — | $185.00 | 8 | 4.9/5 | View Details |
 | Rheem Electric Tankless Water Heater RTEX-27 | 275128919333374376 | — | $629.95 | 8 | 3.6/5 | View Details |
 | Rheem Performance Plus 9.5 GPM Smart Non-Condensing Indoor Liquid Propane Tankless Water Heater | 3618480599178466676 | — | $1,337.63 | 7 | 4.7/5 | View Details |
 | Rheem RTEX-36 Electric Tankless Water Heater | 5551893898685602801 | — | $920.83 | 7 | 4.6/5 | View Details |
 | Rheem Performance Plus Tankless Water Heater | 12629351282406473948 | — | $779.88 | 7 | 4.1/5 | View Details |
 | Rheem RTG-70DVLN-3 7 GPM Indoor Tankless Water Heater | 639672837984756065 | — | $804.00 | 5 | 4.6/5 | View Details |
 | Rheem IKONIC Tankless Water Heater | 13641211539416696600 | — | $1,529.00 | 4 | 3.8/5 | View Details |
 | Rheem RTGH-90DVLN-3 Tankless Water Heater | 4055568230508600575 | — | $1,108.88 | 4 | 3/5 | View Details |
 | Rheem RTGH-84DVLN-3 Tankless Water Heater | 10037475602760164133 | — | $1,188.00 | 3 | 5/5 | View Details |
 | Rheem RTGH-SR11I IKONIC Tankless Gas Water Heater | 7535491211748495868 | — | $1,649.00 | 3 | 5/5 | View Details |
 | Rheem RTGH-84DVLN Tankless Water Heater | 7919909785319476886 | — | $799.95 | 3 | 5/5 | View Details |
 | Rheem RTGH-95DVLN Tankless Water Heater | 12789667345000212423 | — | $1,499.00 | 3 | 5/5 | View Details |
 | Rheem RTGH-95DVELN-3 Super High Efficiency Condensing Indoor Tankless Natural Gas Water Heater | 8342705805592128279 | — | $1,635.00 | 2 | 5/5 | View Details |
 | Rheem RTEX-06 Professional Classic Tankless Electric Water Heater | 14056679903768300243 | — | $185.00 | 2 | 4.5/5 | View Details |
 | Rheem 5.5 kW 240-Volt Non-Thermostatic Tankless Electric Water Heater | 5681719508919227479 | — | $245.80 | 2 | 2/5 | View Details |
 | Rheem RTG-70XLP-3 High Efficiency Non-Condensing Outdoor Tankless Liquid Propane Water Heater | 12473269988476598375 | — | $804.00 | 1 | 5/5 | View Details |
 | Rheem Super High Efficiency IKONIC RTGH-S11i Tankless Water Heater | 1695127801372237544 | — | $1,550.00 | 1 | 5/5 | View Details |
 | Rheem IKONIC 8.4 GPM Smart Super High Efficiency Indoor or Outdoor Natural Gas Tankless Water Heater | 3766505733246089330 | — | $1,529.00 | 1 | 5/5 | View Details |
 | Rheem RTG-95DVLN-1 Indoor Natural Gas Tankless Water Heater | 1441390721395163350 | — | $1,016.49 | 1 | 5/5 | View Details |
 | Rheem Thermaforce Super High Efficiency Tankless Water Heater RTGH-L199i | 2927574464614576249 | — | $1,450.00 | /5 | View Details |
Rheem Collections
EZ Series
Designed for fast and easy tankless upgrades, featuring top-mounted connections that simplify replacement of traditional tank water heaters.
Released: 2019-05-15
Key Features
- High-efficiency condensing (96% UEF)
- 25-year heat exchanger warranty
NRCR Series
Flagship recirculation line with built-in pump providing instant hot water to every fixture.
Released: 2020-11-01
Key Features
- Dual stainless heat exchangers
- Wi-Fi compatibility
- Intelligent recirculation
NRC Series
Dependable condensing units offering high output and excellent thermal efficiency, up to 9.8 GPM.
Released: 2018-08-20
Key Features
- Compact to heavy-duty models
- Long-lasting dual exchanger
ecoTOUGH Series
Eco-friendly line meeting stricter emissions and efficiency standards, ideal for green installs.
Released: 2021-03-10
Key Features
- Low NOx emissions
- ENERGY STAR certified
ProTOUGH Series
Built for contractors with rugged commercial-grade components and extended warranties.
Released: 2022-01-05
Key Features
- Commercial-grade construction
- Extended warranty options
ValueSolutions Series
Budget-friendly, non-condensing models offering reliable performance without premium price.
Released: 2017-06-12
Key Features
- Lower upfront cost
- Proven Noritz quality
NCC Series
Commercial cascade lineup handling up to 199,900 BTU for large-scale hot water demands.
Released: 2019-09-30
Key Features
- Cascadable for higher capacity
- Robust commercial output
NRCB Series
Combination boiler units delivering both space heating and domestic hot water in one compact package.
Released: 2020-07-22
Key Features
- Space heating + DHW
- High efficiency condensing