Price: $265.28
(as of Dec 17, 2024 00:56:16 UTC - Details)

The Rheem Perfomance RTEX-11 is an 11 kW tankless electric water heater ideal for point-of-use applications. This unit is great for a point-of-use application, Rheem tankless electric water heaters offer a continuous, endless supply of hot water. A lower kilowatt unit can provide hot water on demand for single or multiple point-of-use applications while a higher kilowatt unit could provide hot water for a whole house depending on the inlet ground water temperature. Tankless electric water heaters save space, save energy, save money, and require no venting. The sleek, compact size, 90 percent smaller than a tank, allows you to save space and place the unit wherever you want, including under a sink. Tankless units only draw energy when hot water is flowing, while traditional tanks are constantly drawing energy to keep the water in the tank at the desired temperature.
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
11kW Model Flow Rate: up to 2.68 GPM
Side 1/2" NPT water connections
On demand, consistent and continuous hot water
Reviewer: The Golightly’s
Rating: 5.0 out of 5 stars
Title: Energy efficient and works great
Review: We have been using this unit for over a month and it works great. It heats the water within seconds and it is so much more energy efficient than our old unit which is constantly heating 50 gallons. I feel like the whole world needs to go to these and leave the dinosaur hot water units in the past. We are always looking for simple ways to live better and this fit right into that equation. We only have one bathroom so the 11v is plenty for our needs. If you are supplying hot water to multiple places at once then you may consider a larger unit. If you can manage your use to varied times a smaller unit would likely still serve you well. Doing our part to save resources!

Reviewer: BK
Rating: 5.0 out of 5 stars
Title: Very hot product!
Review: very easy to install and works really well for a bathroom. I have installed it in my camp for supply hot water to the shower and sink and very happy with this.

Reviewer: rkr
Rating: 5.0 out of 5 stars
Title: Nearly instant hot water
Review: If your water heater is a long way off plumbing-wise then you know how long, aggravating, and wasteful it is to run the tap till you get hot water.This unit provides *warm* water after about 7-8 seconds and is fully heated after 15 seconds vs. the nearly two minutes we used to wait. I lollygagged for three years before I finally bought one of these on-demand heaters.Only thing is these on-demand heaters need a dedicated 240 Volt 60 A circuit and uses 6 ga wiring. You aren't plugging this thing into any regular outlet. Wire this thick, stranded of course, was still quite difficult to get connected to the interior terminals due to having to bend to fit inside the unit. But once installed it's doing what I wanted.

Reviewer: Joanne L. Habibi
Rating: 1.0 out of 5 stars
Title: Unit quit working after 1 year. Rheem refused to accept return and refund me.
Review: The small Rheem Tankless water heater I ordered on May 3, 2023 quit working one year later. I immediately went online and purchased the exact same unit again, planning to return and get a refund on the old one once it was removed and the new one replaced. When I contacted Rheem to get a return authorization and refund, they said they would not take it back and I should keep it and use it for replacement parts! REALLY? That was the most ridiculous thing I've ever heard. They said I should have called when the old one quit working so they could troubleshoot over the phone. I barely know where my water heater is located and certainly was not prepared to crawl around under the sink to figure out why their defective product quit working. I simply called the plumber to remove the old one (just 1 year old) and replace it with the new one I'd ordered. Now I'm stuck with a used Rheem Tankless water heater that doesn't work. I'LL NEVER BUY ANY RHEEM PRODUCT AGAIN. If that's how their customer service responds, in the future I will go with another manufacturer who stands behind their product without excuses!

Reviewer: Joey L.
Rating: 4.0 out of 5 stars
Title: That is good enough for me
Review: A high quality unit. Runs off one 50A breaker. Not much water throughput. Can just run one shower with low flow shower head. That is good enough for me. The really good feature is that you can run a very slow flow and this rig still regulates the temperature well. That means by lowering the flow, say at a kitchen faucet, you can get very hot water, albeit at a slow flow. MAKE SURE you use a lot of teflon tape on the non-tapered pipe fittings. Pipe dope liquifies on the hot side. On the plus side, non-tapered thread to pipe thread adapters are included in the box.

Reviewer: Adam Irrgang
Rating: 5.0 out of 5 stars
Title: Works SO much better than the last tankless water heater I had
Review: I'm using this for a couple of sinks. For that, it works absolutely wonderfully in the summertime, and in the winter, it has just enough power. I can run the water at any rate, and it heats it appropriately. It feels just like I'm using a tank-style water heater. My last one DID NOT.

Reviewer: Salinas Family
Rating: 5.0 out of 5 stars
Title: Great water heater
Review: Had to replace old water heater and this one worked like a charm. Easy enough to install for a handyman.

Reviewer: Amazon Customer
Rating: 5.0 out of 5 stars
Title: Quality product , great customer service
Review: Great way to get hot water without heating a tank full 24/7 and wasting money on keeping it hot

Reviewer: Alex
Rating: 5.0 out of 5 stars
Title:
Review: works great but to tooo.. expensive

Reviewer: Cesar Paez
Rating: 1.0 out of 5 stars
Title:
Review: Muy mal producto. No cumplió con lo esperado. Jamás calentó lo suficiente.

Reviewer: k Zweers
Rating: 4.0 out of 5 stars
Title:
Review: Second try at a tankless. First was too small but this unit works great. Happy purchase