Having hot water is a demand all modern homes need to meet, but when you aren’t living alone, this need can often remain unfulfilled. There are plenty of scenarios where this can happen, but there is a solution.
An American manufacturer, Rheem, has been making water heaters for decades and has established a foothold for itself in the market. Today we will present one of their electric tankless water heaters in our Rheem RTEX-13 review. With tankless water heaters, you can save on space and your energy bill at the same time.
We will provide you with the results of our independent installation and testing in our review. This information will hopefully give you all you need to know before deciding whether or not to purchase this unit.
Rheem RTEX-13 Specifications
This point-of-use model comes in a very small size, making it very easy to store in a cabinet, under a sink, or any place that’s out of the way. There are only a few screws required to mount this unit on a wall, so you can install it fairly quickly. Even with its compact size, you can still get substantial use from the water heater.
From the perspective of power usage, this heater only requires 13kW at 240V to run smoothly. You will also need a one 60-amp double pole breaker to ensure safe usage. The manufacturer recommends this unit for a 2-person household, but that depends on several factors, including climate. To learn more about how weather influences tankless water heaters read our informative guides.
In a fairly warm climate, where the groundwater temperature is around 80°F (26.6°C), you can expect a flow rate of around 2.54GPM. This measure would be enough for the demands of a showerhead and faucet, possibly more if you have low flowing fixtures.
Its efficiency is another good aspect of this product, and its active heating elements are made with dual copper immersion technology. Because of its design, the unit has a 99.8% energy efficiency rating. The LED display allows easy temperature control with 1-degree increments, it also has the capability to display temperatures in both Fahrenheit and Celsius.
Customer Support and Warranty
Rheem has invested time and resources to allow better communication between the company and its customers. If you find yourself facing a problem, you can contact their customer service by phone, email or even live chat on their website. Their customer service is available 7 days a week.
This tankless water heater is covered by a 5-year ‘no-leak’ guarantee, but the parts in the unit are only covered for 1 year.
What to Expect from Rheem RTEX-13?
Given the design of the on-demand water heater, installation of Rheem RTEX-13 is possible in a variety of places, like mobile homes, boats, RV’s, etc. This added portability gives extra value to the entry-level price of this heater. As long you use this electric tankless water heater according to the manufacturer’s instructions, you will have years of service with the heater.
It is true that this model is limited in the quantity of hot water it can supply, but for a single room, it can act as a solution. What you can’t expect from this heater is high performance in cold climates, where the water is very cold. If the unit needs to raise the temperature by 65°F, you can only expect 1.37GPM of hot water flow, which is good enough for a single standard fixture.
- Very energy-efficient model
- Quick and simple installation process
- Ultra-compact design makes it easy to store anywhere
- Good hot water flow for small households
- Doesn’t work well in cold areas or large homes
- Parts only have a 1-year warranty
For small-scale use, this tankless water heater will provide you with all the hot water you need, as long as you aren’t simultaneously running more than one high-volume shower in a cold climate. Also, if you don’t like managing hot water usage, this may not be the right model for your household.
If you need something for a small condo, boat, RV, mobile home or just something to help your existing system, then you can count on this unit is the one for you. This concludes our Rheem RTEX-13 review. We hope we have addressed all of the essential questions for this product. If we have missed something, please feel free to leave your questions in our comments section.