Rheem instant hot water heaters are a great option for homes with limited space or high hot water demands. They can be installed under sinks or in wall-mounted configurations.
Rheem offers a range of instant hot water heaters with different flow rates, from 1.5 to 10 gallons per minute. The heaters can be powered by electricity or gas.
The installation process for Rheem instant hot water heaters is relatively straightforward, requiring a licensed plumber to connect the unit to the water supply lines and electrical connections.
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Features
The Rheem instant hot water heater is a game-changer for households with multiple users. It provides a continuous supply of hot water, eliminating the need to wait for a tank to refill.
The Rheem instant hot water heater is energy-efficient, using up to 50% less energy than traditional tank-style water heaters. Its advanced technology allows for precise temperature control, ensuring water is heated only when needed.
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The Rheem instant hot water heater is designed for convenience, with a sleek and compact design that fits easily under sinks or in closets. Its compact size makes it perfect for small bathrooms or offices.
The Rheem instant hot water heater is also easy to install, with a simple plug-and-play design that doesn't require any additional plumbing. This makes it a great option for DIY enthusiasts and homeowners who want a hassle-free installation process.
Performance
The Rheem instant hot water heater is a game-changer for any household. It provides energy efficiency and high performance in a compact European design. Plus, it's made to stand up to extreme hard water applications.
Hot water delivery is lightning-fast, with the unit starting to heat water as soon as someone turns on a hot water faucet. In just a few seconds, the water coming out of the faucet is nice and hot. The RTEX-18 starts heating the water immediately, unlike traditional tank water heaters that take time to deliver hot water.
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You can select the desired temperature by turning a knob on the front of the unit. The temperature range is from 80 to 140 degrees F, giving you plenty of options to choose from. The Rheem RTEX-18 delivers ample hot water for my needs, and it does it efficiently.
Here are some key specs to keep in mind:
The Rheem RTEX-18 is a relatively small-capacity tankless water heater, so if you have a large home with several bathrooms, you may want to consider a higher-capacity model.
Design and Installation
The Rheem instant hot water heater offers a range of benefits, and one of the key advantages is its design and installation flexibility.
This unit provides installation flexibility with a moveable combustion air intake that can be directed left or right, giving you more control over the installation process.
You can also flex the vent in existing B vent installations, making it easier to integrate with your existing plumbing setup.
Designed for Next Generation
The Rheem CRTGH Series Super High Efficiency Condensing Tankless Water Heaters are designed to provide the same continuous flow of hot water as traditional tank-style water heaters, but with a modern twist.
This new generation of tankless water heaters offers high performance, energy savings, and a comprehensive 15-year warranty.
One of the key benefits of these tankless water heaters is their ability to provide continuous hot water, which is especially useful for households with multiple users.
The Rheem Professional Classic Tankless Electric Water Heater, on the other hand, uses a looped pump to circulate water through the heat exchanger, making it an innovative alternative to traditional water heaters.
This compact design, about the size of a small carry-on suitcase, makes it easy to install indoors or outdoors with the use of an additional accessory.
For added safety, the Rheem Professional Classic series features an exclusive Rheem Overheat Film Wrap that automatically shuts off the heater in case of overheating.
Here are some of the available flow rates for the Rheem Professional Classic series:
Tank Upgrades Simplified
Rheem IKONIC offers maximum install flexibility for tank upgrades. This allows for room air intake, making the installation process much easier.
Common venting of two units is also possible, which can be a huge advantage in certain situations.
Flex venting is another option, giving installers more freedom to work with different plumbing configurations.
Safety and Efficiency
The Rheem instant hot water heater is a great option for anyone looking for a safe and efficient solution for their hot water needs. Exclusive Overheat Film Wrap shuts down the unit if the heat exchanger overheats for added safety in your home.
At high altitudes, the Rheem IKONIC can work up to 10,200 feet above sea level, making it a great option for those who live in areas with high elevations.
A tankless hot water heater like the Rheem RTEX-18 doesn't need to keep a huge tank of water consistently hot, which means it only draws electricity when needed, making it more energy efficient. According to Energy.gov, a tankless water heater is 8 to 34 percent more energy efficient than storage water heaters.
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The Rheem RTEX-18 is estimated to cost around $288 per year to operate, which is a significant savings compared to other types of hot water heaters. It's also a little less expensive than gas-powered tank heaters.
The Rheem instant hot water heater has an expected lifespan of 20 years or more, which is longer than standard tank heaters that typically last 10-15 years. This means you'll get more years of service from the Rheem unit, which is a great value.
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Product Details
Rheem electric tankless hot water heaters are a great alternative to standard tanked electric water heaters because they provide continuous hot water on demand.
Their compact design fits almost anywhere, making them a great option for homes with limited space.
Tankless water heaters can provide significant savings over a standard steel tank water heater, which can lose up to 30 degrees of water temperature over a 24-hour period.
Rheem’s electric tankless water heaters only activate when you need hot water, making them a more energy efficient option.
Here are some key features of Rheem electric tankless water heaters:
- On demand, consistent, endless hot water.
- Industry leading low flow activation – as little as 0.3 GPM.
- External temperature controls to adjust temperature in increments of 1°F.
- Robust copper immersion heating elements with brass top for increased durability and easy replacement.
To select the correct wattage for your Rheem tankless water heater, you'll need to reference the specs and chart below:
Some popular Rheem tankless water heater models include the RTEX-04, RTEX-06, RTEX-08, and RTEX-18, which have flow rates of up to 0.9, 1.5, 1.95, and 4.4 GPM respectively.
Testing and Performance
Testing and performance of Rheem instant hot water heaters are crucial to consider before making a purchase.
The Rheem RTEX-18 tankless water heater is designed to meet local codes and manufacturer's specifications.
In our community, property owners are allowed to handle their own utility installation, but it's essential to accurately assess your skills and follow local codes to avoid serious issues.
The RTEX-18 starts heating water as soon as someone turns on a hot water faucet, triggering a sensor in the unit to start heating the water.
This process happens in just a few seconds, providing nice and hot water coming out of the faucet.
You can select the desired temperature by turning a knob on the front of the unit, making it simple and convenient.
The RTEX-18 is a relatively small-capacity tankless water heater, so it may not be suitable for large homes with several bathrooms.
Rheem offers an interactive tankless sizing tool to help determine the best model for your needs and geographic location.
The RTEX-18 delivers ample hot water for my needs, and it does it efficiently.
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Considerations
If you're considering a Rheem instant hot water heater, think about your personal needs first. The Rheem RTEX-18 was a great choice for a building with lower hot water demands, but it might not be suitable for larger families or households with high water usage.
A tankless model is ideal for lower hot water demands. It doesn't store hot water, which can save you money on energy costs by not having to keep a full tank of water heated 24/7.
Electric tankless water heaters are a good choice for areas with high electricity costs. The author of the article lives in an area with a rural electric co-op, where the cost per kilowatt hour is higher than in many regions.
You'll need to consider the space requirements for your Rheem instant hot water heater. The RTEX-18 doesn't take up much space, which was a plus for the author, who had a small utility area in their building.
If you have a large family or high water usage, you may need a higher-capacity unit or a storage tank type.
Frequently Asked Questions
What is the most common problem with Rheem water heaters?
The most common issue with Rheem water heaters is corrosion, which causes leaks due to sediment and rust buildup over time. Regular maintenance can help prevent this problem and extend the lifespan of your water heater.
What is the disadvantage of an instant water heater?
Tankless water heaters can have drawbacks such as inconsistent water temperature and higher upfront costs. They also may not provide simultaneous hot water supply to multiple fixtures at the same time.
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