---
product_id: 71382367
title: "11kW 240V Tankless Electric Water Heater"
brand: "rheem"
price: "95279 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "Rheem"
url: https://www.desertcart.kg/products/71382367-11kw-240v-tankless-electric-water-heater
store_origin: KG
region: Kyrgyzstan
---

# 11kW powerful heating 2.68 GPM flow rate Compact 8.25"W x 12.63"H size 11kW 240V Tankless Electric Water Heater

**Brand:** rheem
**Price:** 95279 som
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade to endless hot water with zero clutter! ⚡

## Quick Answers

- **What is this?** 11kW 240V Tankless Electric Water Heater by rheem
- **How much does it cost?** 95279 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/71382367-11kw-240v-tankless-electric-water-heater)

## Best For

- rheem enthusiasts

## Why This Product

- Trusted rheem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Saving Sleek Design:** 90% smaller than traditional tanks—perfect for under-sink or tight spaces.
- • **Endless Hot Water, Zero Wait:** On-demand heating delivers continuous warmth without the bulk of a tank.
- • **Energy Smart & Cost Efficient:** Self-modulating power control uses energy only when you need it, slashing waste.
- • **Plug & Play Point-of-Use Solution:** Ideal for single or multiple fixtures with easy wall mounting and 240V compatibility.
- • **Precision Control at Your Fingertips:** Adjust temperature easily with a sleek digital LED display and ON/OFF dial.

## Overview

The Rheem RTEX-11 is a compact, 11kW tankless electric water heater designed for point-of-use applications. Delivering up to 2.68 gallons per minute, it provides continuous hot water on demand with precise digital temperature control. Its space-saving design is 90% smaller than traditional tanks, requiring no venting and featuring energy-efficient self-modulating power. Perfect for millennials seeking smart, stylish, and sustainable home upgrades.

## Description

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.

Review: Rheem tankless water heater - Love this tankless heater, it works great! Never run out of hot water while showering! There's only 2 of us in our home so not sure how it would work with a family but I'm sure a bigger size or maybe another mounted where hot water is needed most?? Would definitely buy again!!
Review: If you know what you're getting, you'll love it! - There are many factors to consider before buying an electric tankless heater. By far the most important -- at least for me -- is whether the ground water temperature in your area is consistently warm enough to give the water heater a chance to succeed. I live in North Central Florida where the groundwater temperature is a rock-solid 72F (~22C) year-round. This is the ideal setup for tankless electrics; if you are far north this heater will likely fall short at the exact worst time, i.e. when it's winter and you could really use a nice, hot shower. I recommend looking closely at the map provided on Rheem's website and product pages to determine if this product is right for you. Second caveat, if you have a natural gas hookup, it is worth researching whether a gas-powered unit would be more efficient and/or less costly. There are considerations beyond this, of course, but those are the key ones that will determine whether you will be a happy camper or have cold water poured on those dreams of long, hot showers. If you're still considering after reading the above, then the short of it is (drumroll) ... I'm very satisfied and fully recommend making the jump to tankless! Here's the long-winded version: There is about 25- to 30-feet of pipe to travel between the water heater and the showerhead in my bathroom, and it takes about 25 seconds (well, 22.93 ... yes, I used a stopwatch) for the shower water to reach max temp. I did not use a stopwatch on my tank heater, but I'd guestimate it takes about 10 seconds longer for the tankless to deliver hot water than the tank unit it replaced. The main benefit, again, is that the tankless will continue to deliver hot water indefinitely while the tank is finite -- so, no more playing beat the clock and if you get in the water and realize you forgot your razor or something. The temperature coming out of the showerhead lines up with the temperature on the digital display for the main shower. There is a slight, but noticeable (I'd say 2F-4F/1C-2C) drop from the maximum temperature for the shower furthest away from the water heater. There is enough overhead that you can crank it a few degrees higher -- just be sure your shower handle can settle on something that won't scald you if you go above the recommended! I can also verify that the throughput on the model I bought (24 kW) is enough to handle two showers running at the same as well as start a load of laundry on hot -- I'm sure it could handle more, but there's not a scenario I can imagine where I would need it to. All in all, the flow is as good or better than the water heater it replaced. The dimensions listed on the product page are accurate. As far as your monthly bill, this hasn't made a significant impact although it may in the future. Here's some data from my most recent utility bill compared to the same month last year. Keep in mind the following figures are the daily averages listed on my bill for the whole home, not just the heater, although it is the only major appliance we have replaced over the past 12 months. April 2025 = 33.90 kWh electric and 0.06 KGA water (whole-home daily average) April 2024 = 31.34 kWh electric and 0.03 KGA water (whole-home daily average) Based on the above info (and the prior two months), it's essentially a wash -- we're using more power but only because we're taking longer showers because we can actually enjoy the heat now rather than worrying whether we're leaving enough water for everyone else! I'm sure that our water usage will level out once the novelty wears off, but that might be a while :) Now for the elephant in the room: Installation. If you can't say right now, with confidence and without any further research, whether you could get away with a DIY install, I'll answer the question for you: No, you can't. The plumbing end of the equation is easy -- the only hard part was ditching the tank unit. Beyond that, all you will need is a few fittings and a little pipe to hook it all up, plus the proper hardware to secure it to the wall. Any homeowner who would be comfortable ripping out a vanity sink/faucet and installing a new one should be able to do this portion themselves. The electrical hookup is another story. First, you will need 200-amp service to make this viable; if you don't, save yourself the headache. Second, depending on the distance between your electrical box and your water heater, you may need to have an auxiliary breaker box installed, as we did. Just as water temperatures vary regionally, so do electrician's rates. In our area we paid $850 to have a licensed electrician and his journeyman knock it out -- it took them about three hours and that includes the cost of the pictured auxiliary box. I would expect that rate to be higher in major metros but hopefully it gives a ballpark for what you can expect to pay beyond the sticker price.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N35V1HH |
| Amperage | 46 Amps |
| Best Sellers Rank | #5,444 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Water Heaters |
| Brand | Rheem |
| Color | Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (3,913) |
| Date First Available | January 19, 2017 |
| Efficiency | 99.8% |
| Global Trade Identification Number | 00020352685380 |
| Heat Output | 11 Kilowatts |
| Is Discontinued By Manufacturer | No |
| Is Electric | Yes |
| Item Weight | 7.04 pounds |
| Item model number | RTEX-11 |
| Manufacture Year | 2023 |
| Manufacturer | Rheem |
| Manufacturer Part Number | RTEX-11 |
| Maximum Flow Rate | 2.68 Gallons Per Minute |
| Maximum Operating Pressure | 150 |
| Model | Professional Classic Tankless Electric RTEX-11 |
| Mounting Type | Wall |
| Product Dimensions | 8.25"W x 12.63"H |
| Special Feature | LED Display |
| Special Features | LED Display |
| Style | Point-of-Use, 11 kw |
| UPC | 020352685380 |
| Voltage | 240 Volts |
| Wattage | 11 KW |

## Product Details

- **Brand:** Rheem
- **Capacity:** 2.68 Gallons
- **Power Source:** ['ac']
- **Product Dimensions:** 8.25"W x 12.63"H
- **Special Feature:** LED Display

## Images

![11kW 240V Tankless Electric Water Heater - Image 1](https://m.media-amazon.com/images/I/91SvFGwNeyL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How many gallons per minute?**
A: Hello-The GPM changes with the temp rise needed.... so its a sliding scale.Here is a performance chart you can review - http://www.rheem.com/product/tankless-electric-water-heaters-professional-classic-series-rtex-08-rtex-11-rtex-13 Go to - Specs/Docs tabI hope this helps :)ThanksBen

**Q: Can this water heater be used with a water softener that uses salt? Or will it damage it?**
A: You can use a water softener with the tankless water heater

**Q: Use inline with hot water line instead of cold? Wanting to use for outdoor shower and point of use for bathtub**
A: I am using this as a secondary hot water heater for my solar system.  Seems like a similar use as I supply it with up to 130 degree water.  It will adjust to heat the water to it's set point and heat no further.  if the water is already hot id does not turn on.

**Q: If i uninstall my hot water heater then instal the tankless will this still allow hot water throughout the house water supp???**
A: In theory, yes. The Rheem 11kW 240v Tankless Electric may not have enough power to supply a house with hot water. The 11kW is used at end destinations or can heat enough water for one bathroom or kitchen. If you have multiple bathrooms, look into putting one in each area; that way, you only heat water in the area you need. I recommend calling our tech support line at 800.374.8806 so that they can properly size the tankless water heater to fit your needs before you invest your time and money in purchasing the wrong unit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rheem tankless water heater
*by J***X on January 31, 2026*

Love this tankless heater, it works great! Never run out of hot water while showering! There's only 2 of us in our home so not sure how it would work with a family but I'm sure a bigger size or maybe another mounted where hot water is needed most?? Would definitely buy again!!

### ⭐⭐⭐⭐⭐ If you know what you're getting, you'll love it!
*by 2***W on May 27, 2025*

There are many factors to consider before buying an electric tankless heater. By far the most important -- at least for me -- is whether the ground water temperature in your area is consistently warm enough to give the water heater a chance to succeed. I live in North Central Florida where the groundwater temperature is a rock-solid 72F (~22C) year-round. This is the ideal setup for tankless electrics; if you are far north this heater will likely fall short at the exact worst time, i.e. when it's winter and you could really use a nice, hot shower. I recommend looking closely at the map provided on Rheem's website and product pages to determine if this product is right for you. Second caveat, if you have a natural gas hookup, it is worth researching whether a gas-powered unit would be more efficient and/or less costly. There are considerations beyond this, of course, but those are the key ones that will determine whether you will be a happy camper or have cold water poured on those dreams of long, hot showers. If you're still considering after reading the above, then the short of it is (drumroll) ... I'm very satisfied and fully recommend making the jump to tankless! Here's the long-winded version: There is about 25- to 30-feet of pipe to travel between the water heater and the showerhead in my bathroom, and it takes about 25 seconds (well, 22.93 ... yes, I used a stopwatch) for the shower water to reach max temp. I did not use a stopwatch on my tank heater, but I'd guestimate it takes about 10 seconds longer for the tankless to deliver hot water than the tank unit it replaced. The main benefit, again, is that the tankless will continue to deliver hot water indefinitely while the tank is finite -- so, no more playing beat the clock and if you get in the water and realize you forgot your razor or something. The temperature coming out of the showerhead lines up with the temperature on the digital display for the main shower. There is a slight, but noticeable (I'd say 2F-4F/1C-2C) drop from the maximum temperature for the shower furthest away from the water heater. There is enough overhead that you can crank it a few degrees higher -- just be sure your shower handle can settle on something that won't scald you if you go above the recommended! I can also verify that the throughput on the model I bought (24 kW) is enough to handle two showers running at the same as well as start a load of laundry on hot -- I'm sure it could handle more, but there's not a scenario I can imagine where I would need it to. All in all, the flow is as good or better than the water heater it replaced. The dimensions listed on the product page are accurate. As far as your monthly bill, this hasn't made a significant impact although it may in the future. Here's some data from my most recent utility bill compared to the same month last year. Keep in mind the following figures are the daily averages listed on my bill for the whole home, not just the heater, although it is the only major appliance we have replaced over the past 12 months. April 2025 = 33.90 kWh electric and 0.06 KGA water (whole-home daily average) April 2024 = 31.34 kWh electric and 0.03 KGA water (whole-home daily average) Based on the above info (and the prior two months), it's essentially a wash -- we're using more power but only because we're taking longer showers because we can actually enjoy the heat now rather than worrying whether we're leaving enough water for everyone else! I'm sure that our water usage will level out once the novelty wears off, but that might be a while :) Now for the elephant in the room: Installation. If you can't say right now, with confidence and without any further research, whether you could get away with a DIY install, I'll answer the question for you: No, you can't. The plumbing end of the equation is easy -- the only hard part was ditching the tank unit. Beyond that, all you will need is a few fittings and a little pipe to hook it all up, plus the proper hardware to secure it to the wall. Any homeowner who would be comfortable ripping out a vanity sink/faucet and installing a new one should be able to do this portion themselves. The electrical hookup is another story. First, you will need 200-amp service to make this viable; if you don't, save yourself the headache. Second, depending on the distance between your electrical box and your water heater, you may need to have an auxiliary breaker box installed, as we did. Just as water temperatures vary regionally, so do electrician's rates. In our area we paid $850 to have a licensed electrician and his journeyman knock it out -- it took them about three hours and that includes the cost of the pictured auxiliary box. I would expect that rate to be higher in major metros but hopefully it gives a ballpark for what you can expect to pay beyond the sticker price.

### ⭐⭐⭐⭐⭐ Tankless Hot Water install
*by A***R on May 6, 2025*

I replaced a 55 gallon hot water tank with this unit, I bought a little larger unit than what the ratings said I needed to be safe. Make sure you check your electrical panel to make sure you have room for 3 x 40 double pole 40 amp circuit breakers. I didn’t have enough room, had to add a sub panel plus had to run 9 x 8 gauge wires the unit requires. I’m pretty handy, but asked a certified electrician to help me with the pre wiring. To be honest, I would have been afraid to try and do this myself even with all my experience. Installation was pretty simple after you have the wiring installed. Use 1 inch piping from your electrical panel to the tankless electrical unit or you won’t be able to pull the nine 8 gauge wires through the pipe. I also suggest having an electrical panel with a main breaker so you don’t have to shut the whole house down for the final install. Additionally i installed a surge protector to hopefully protect the unit from power surges which appears to have delicate electronics inside. We’ve only had this unit in operation for 4 days so far, but the water is really hot, have had no issues at this point and I love the added space gained without having the tank. Time will tell if we save 50% on energy, but from all my research it makes sense even with us living in a warm climate. There are several tankless unit manufacturers with great ratings, I went with Rheem because if I have an issue, they are based in the USA and hopefully that means English speaking in my time zone….. Hope my review is helpful to you. Update: it’s been 7 months, still works great, very happy with this decision even though I can say I’ve seen significant energy savings

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-27*