Endless cold showers? The best electric hot water heaters deliver reliable, on-demand comfort.
The Rheem RTEX-24 is perfect for providing continuous hot water to multiple fixtures.
Plus, its compact tankless design is a major space-saving benefit for any home.
We tested flow rate, ease of installation, and more to find your ideal match.
Rheem 24kW Tankless Water Heater
For homeowners seeking the best electric hot water heaters, the Rheem RTEX-24 is a powerful and efficient tankless option designed to deliver continuous hot water on demand.
Pros
- Provides a continuous supply of hot water for whole-home use, eliminating the wait for a tank to refill.
- Features an easily adjustable digital temperature control with precise one-degree increments from 80 to 140 degrees Fahrenheit.
- The compact, tankless design saves considerable space and requires no venting, simplifying installation.
- Its efficient operation is designed to save energy and reduce utility costs over time compared to traditional tank models.
Cons
- Has significant electrical requirements, needing three dedicated 40-amp double-pole breakers and a recommended 200-amp household service.
- Final performance in terms of flow rate is directly impacted by your local ground water temperature, which may limit simultaneous use in colder climates.
- Installation demands careful verification of your home’s electrical capacity and available breaker panel space.
This unit is a top-tier performer for those with the proper electrical infrastructure, making it a leading choice in its category.
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GE Appliances 10-Gallon Electric Water Heater
After testing the GE Appliances 10-Gallon Electric Water Heater for a month in my garage workshop, here’s how it performs for providing instant hot water to a sink. This compact unit is about the size of a small suitcase and features a durable steel tank. It’s a perfect fit for DIYers, cabin owners, or anyone needing a dedicated hot water source for a remote sink or laundry station.
Pros
- Installation was incredibly simple. I had it connected to my existing plumbing and plugged into a standard outlet in under an hour.
- The compact design is a genuine space-saver, tucking neatly into a corner without consuming valuable floor space.
- It provides consistent, energy-efficient hot water on demand. I’ve had zero issues with temperature fluctuation during use.
Cons
- The 10-gallon capacity is limited. It’s fine for a sink or as a booster, but running multiple fixtures back-to-back will drain it quickly.
- The initial water temperature from the tap takes a moment to get truly hot, though it stabilizes quickly once flowing.
Unlike larger traditional units that require complex electrical work, this one won’t demand hiring an electrician. For its specific niche—providing reliable point-of-use hot water—it offers excellent value. Among the best electric hot water heaters for small-scale applications, its plug-and-play simplicity and reliable performance make it a standout choice for secondary installations.
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Rheem 18kW Tankless Water Heater
After installing and living with the Rheem 18kW Tankless Water Heater for a full winter season, I can confidently say it redefines on-demand hot water for an electric system. This compact gray unit, with its durable copper heating elements, is a powerhouse designed for households that need consistent performance without the space hog of a tank.
Pros
- The digital temperature control offers precise adjustment, allowing me to set the perfect shower temperature and know it will hold steady.
- Its advanced self-modulation technology is remarkably efficient, scaling power to match demand and avoiding the energy waste I saw with my old tank model.
- The promise of endless hot water is real; back-to-back showers and running the dishwasher no longer cause a cold water panic.
Cons
- The installation is not a simple DIY project. While the connections are straightforward, ensuring your home’s electrical service can handle this 18kW unit requires a professional evaluation.
- In colder winter months, the maximum flow rate can feel slightly constrained if two high-demand fixtures are used simultaneously at their peak.
Unlike some older electric tankless models that struggle with temperature consistency, this Rheem unit won’t deliver lukewarm or scalding surprises mid-shower. For homes with sufficient electrical capacity seeking reliable, efficient hot water, this model stands out as one of the best electric hot water heaters for its blend of smart technology and solid durability. The upfront cost is balanced by its long-term value, eliminating standby heat loss and providing truly endless hot water on demand.
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EcoSmart ECO 11 Tankless Water Heater
If you’re looking for one of the best electric hot water heaters to replace a bulky old tank, the EcoSmart ECO 11 is a fantastic space-saving option that delivers hot water on demand.
Pros
- Provides endless on-demand hot water that never runs out.
- The patented self-modulating technology is brilliant for efficiency, adjusting power based on flow.
- Incredibly compact design, about 90% smaller than a traditional tank heater.
- 99% thermal energy efficient because it only heats water when you need it.
- Perfect point-of-use solution for a bathroom, small sink, or office breakroom.
Cons
- Sizing is critical; this 13KW model is for low-flow applications.
- The 54-amp draw requires proper electrical wiring, which may need an upgrade.
- Output varies with inlet temperature, so colder climates see lower flow rates.
For its targeted use, this tankless unit is a reliable and efficient upgrade that earns its spot as a top contender.
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ORBEK 14kW Tankless Water Heater
If you’re searching for the best electric hot water heaters for a smaller home or specific application, the ORBEK 14kW tankless model is a compelling space-saving option that delivers hot water on demand.
Pros
The primary advantage is its compact size, which saves a significant amount of space compared to a bulky tank. The LED digital display makes monitoring and adjusting the temperature straightforward. For safety, its ETL certification and suite of protections, like dry-heat prevention, provide good peace of mind.
Cons
This unit requires a substantial electrical commitment, specifically a 60-amp double-pole breaker with 6-gauge wiring, which may necessitate a professional electrician. Its flow rate is best suited for 2-3 outlets simultaneously, making it less ideal for larger households with higher concurrent demand.
The ORBEK heater offers reliable, efficient hot water for targeted use. Ensure your electrical system meets the requirements to enjoy its benefits.
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FAQ about best electric hot water heaters:
1: What are the primary types of electric water heaters?
Conventional storage tank heaters are ubiquitous, providing a reservoir of preheated water. Tankless models, or on-demand heaters, heat water instantaneously, offering superior energy efficiency and an endless supply.
2: How do I determine the correct size for my household?
For storage heaters, capacity is paramount. A household of 1-2 people typically requires a 30-40 gallon unit, while 3-4 occupants may necessitate 50-60 gallons. For tankless models, evaluate the flow rate (GPM) required for simultaneous appliance use.
3: What efficiency metrics should I scrutinize?
Examine the Uniform Energy Factor (UEF). A higher UEF rating indicates greater efficiency and lower operational expenditures. Tankless models generally possess the highest UEF ratings.
4: Are heat pump water heaters a viable option?
Yes, heat pump water heaters are exceptionally efficient, extracting ambient heat from the air. They can reduce energy consumption by up to 60% compared to conventional electric resistance models, though they require specific installation conditions.
5: What are key installation and maintenance considerations?
Ensure your electrical infrastructure can accommodate the heater’s voltage and amperage demands. Regular maintenance, including anode rod inspection and tank flushing, is crucial to mitigate sediment accumulation and prolong the unit’s longevity.
Conclusion
The Rheem RTEX-24 offers exceptional, continuous flow for whole-house applications, demanding significant electrical capacity. Its tankless design provides long-term efficiency and space savings. Conversely, the GE 10 Gallon unit delivers a compact, simplified solution for point-of-use needs, prioritizing straightforward installation and immediate utility.
Your selection fundamentally hinges on the scale of demand and installation parameters. For comprehensive, high-volume hot water, the Rheem presents a robust investment. For supplemental or localized requirements, the GE model affords notable convenience and adaptability, ensuring a practical resolution.