Rheem RTE 18 Electric Water Heater Specs And Reviews
We simply cannot overstate the importance of hot water in our daily use especially during showers, cleaning and doing laundry. In this modern days, the solution comes pretty easy, that is with the installation of an electric tankless water heater in our homes. In this article, we will be taking a look at the electric water heater from a famous brand, Rheem, particularly the RTE 18 model. There are many Rheem RTE 18 specs and reviews available online, but this one will go a step further. We will provide you with all the information you need to know about how the Rheem RTE 18 works, why do you need it, and what sets it apart from the other competitors.
Dimension & Design
This model weighs at only 8.5 pounds, with the dimensions of 4 x 15 x 19 inches. It is a relatively small water heater. RTE 18 has an ON/OFF dial control with adjustable digital temperature display. The control panel is stylish with 1°F ranging from 80°F to 140°F.
Water Flow and Voltage
This model delivers up to 4.4 gallons of hot water per minute (GPM). The water is at an accurate and consistent temperature. The voltage of this model is 240 volts.
It comes with a 1-year parts limited warranty for all residential installations, a 5-year warranty on all its heating chamber.
What Makes Rheem RTE 18 Tankless Water Heater Stands Out?
1. No heat loss
Bulk heaters are the first thing that comes to mind when we think of water heaters. These are large, clunky tanks of water with heating units inside. They store a certain amount of water and heat it up gradually over a relatively long period of time. In order to minimize heat loss, manufacturers insulate them heavily.
However, a certain amount of heat always escapes. That is because there is a time gap between when you heat the water up, and when you use it. That means you are effectively wasting electricity by using bulk heaters. The Rheem RTE 18 eliminates this problem entirely.
2. Savings on electricity
Rheem RTE 18 heater has an energy efficiency of 99.8% which helps to save you money on electricity bills. Depending on the type of heater in question, these savings can vary, but they are always an improvement on bulk heaters. Furthermore, all tankless water heaters produce fewer greenhouse gases than bulk heaters. That makes them good for the environment as well.
Heat retention is not the only thing that contributes to the efficiency of the Rheem RTE 18. Another important factor lies in the way it functions. Namely, it only uses electricity when hot water is needed. That is why these are also called ‘on demand’ water heaters, because they only work when you tell them to.
Bulk heaters have to retain water in a tank in order to heat it up. That leads to problems with corrosion and plaque buildup. Experience has shown that the Rheem RTE 18 can last up to 10 years longer than bulk heaters. This longevity is due to the fact that it has a robust copper immersion heating elements with brass top therefore less prone to corrosion. And you can clean or replace the pipes easily.
4. Save space
The Rheem RTE 18 is very popular in Europe. That is because apartments in Europe often have limited space, and rents are high. People need to be smart about how to use that space. Having a large bulk water heater is not a smart solution. Thus, people in Europe have opted for tankless water heaters, generally, with the Rheem RTE 18 being one of the most popular models. That is because they can put it almost anywhere. They put the Rheem RTE 18 inside cabinets, in closets, and generally out of the way.
However, if you are looking for a more compact-sized electric water heater for a smaller living space, please read our review on Rheem RTEX-13, another great option for a cheaper price.
5. Safety concerns
As previously mentioned, the Rheem RTE 18 is safer than bulk heaters. Bulk heaters tend to corrode over time, which can lead to structural damage. Once a bulk heater starts leaking, or even worse, if it bursts, there is no way to stop it. That is why bulk heaters can lead to flooding, if not handled properly. If the Rheem RTE 18 malfunctions, all you need to do to stop leaks is shut off the nearest valve.
6. Limitless hot water
For people looking to make the switch, this is the most important factor. With the Rheem RTE 18, you will never run out of hot water. Since it heats water up ‘on demand’, as long as you have running water and electricity, you will have hot water. That eliminates the chance of cold water surprises in the shower forever!
How Does the Rheem RTE 18 Tankless Water Heater Work?
People new to the concept of tankless water heaters often wonder about the way in which they work. It’s actually pretty simple. Instead of storing the water and heating it up gradually, the Rheem RTE 18 does so while the water is flowing past it. For that to happen, you need to install it on the pipes themselves.
To heat the water up, the Rheem RTE 18 uses a heat exchange unit. These are designed to achieve high temperatures, which they transfer to the water. They work using electric induction. This is when an electric current is passed through resistant materials, producing heat.
Pros and Cons of the Rheem RTE 18
The Rheem RTE 18 is a prime example of all the benefits you could hope to get out of a tankless water heater. It is a well-designed and efficient water heater, that gets the job done without much fuss.
The most important feature of this tankless water heater is arguably its self-modulation capability. That means it can adjust the output temperature according to certain parameters. This feature allows it to adapt to the hot water demands from all the faucets you’ve connected it to.
It also has a sensitive thermometer, which can tell you its exact temperature at all times. That is useful if you need to set the water to an exact temperature, but there are other reasons for this as well. Namely, some tankless heaters struggle to perform well when the input water is particularly cold. The thermometer tells you what sort of temperature to expect from the unit in these cases.
Still, this particular model is best suited to handle one tap at a time. If the input water is not that cold, it can handle two. People have used this model to get hot water in areas where there isn’t much room for installations. You shouldn't use this to power an entire house, however. For that, you need a larger model.
Rheem RTEX 18 Electric Water Heater
This has been one of the more comprehensive Rheem RTE 18 specs and reviews. The Rheem RTE 18 is a fantastic investment if you are looking for a basic model of tankless electric water heater. Since it is a basic model, with limited capabilities, we would give it a rating of 4/5 stars. We hope with our article has been able to help you to decide what things to look out for during your purchase and trust me, electric tankless water heater is definitely a great investment to your resident that you do not want to miss.