Rheem240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

Q: How many amps are needed for rheem rtex - 13 240v heating tankless electric water heater

Hello-The RTEX-13 requires 1x 60A@240V breaker / 6 AWG recommended wire size.Specs - http://cdn.globalimageserver.com/fetchdocument-rh.aspx?name=Specification-Sheet&id=fc3235b7-7cd0-42cd-93bc-7169ea92be31 Rheem 800-432-8373I hope this helped :)Ben

Q: Do these tankless water heaters require an overflow line to the outside of the home or a pan like is required on normal water heaters ?

No tank, so, no overflow line required. It mounts on the wall. A pan is needed if required by building code in your city.

Q: We have a 500sq' apt. 1 kitchen sink, 1 lav sink and tub/shower. This tankless heats water to both sinks but nothing to the tub/sh. Help

Sinks have aerators to slow down the water where a tub doesn't. It sounds like one possibility is that your exceeding the GPM for this heater. Next possibility, double check an measure your actually getting at least 240v at the heater, I had an issue where my unit was only getting 235v an it was causing a similar issue where only one of the two heating elements was activating. I had it set to 125F but it was coming out 100F. It was warm and without a meter I would of thought it was working correctly until I tried filling a tub. It couldn't even get the water warm. I pulled my wires out an restripped an cut an screwed them in an it fixed my problem, now its measuring around 245v. Make sure there is no copper showing after screwing down your input wires. Now filling the tub I noticed after about 10-15 seconds the water gets too hot to touch. I set it to 135F.

Q: El titan n270 me puede alimentar 3 baños y agua caliente en toda la casa.

Solo tengo un baño y me sirve muy bien el calentador. Mi casa es pequeña. I'm sorry.

4.3/5

Product ID: 261635010

Secure Transaction

Details

Brand
Rheem
Capacity
1.5 Gallons
Power source
Electric
Product dimensions
25W x 25H
Special features
LED Display

⚡13kW high-power heating

💧3.17 GPM rapid flow rate

🔆±1°F precision digital control

Frequently Bought Together

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass

Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers

Description

🔥 Instant Heat, Infinite Comfort – Upgrade Your Flow Game!

RAPID HOT WATER FLOW - Delivers up to 3.17 gallons per minute, ensuring instant hot water for your busiest mornings.
EFFORTLESS INSTALLATION - Includes 1/2 inch NPT adapters and compression water connections for a quick, hassle-free setup.
ENERGY SMART EFFICIENCY - Boasts an impressive 99.8% energy efficiency, saving you money while reducing your carbon footprint.
PRECISION TEMPERATURE MASTERY - Adjust your water temp in 1°F increments with an easy-to-read LED display for ultimate comfort control.
DURABLE COPPER HEATING ELEMENTS - Built with field-serviceable copper immersion elements for long-lasting, reliable performance.

The Rheem RTEX-13 is a sleek, gray, 240V electric tankless water heater delivering 13kW of power with a rapid 3.17 GPM flow rate. Featuring a precise digital thermostat with ±1°F accuracy and durable copper heating elements, it offers 99.8% energy efficiency and easy installation with included adapters. Perfect for modern homes seeking instant, energy-smart hot water on demand.

Specifications

Manufacturer	Rheem
Part number	RTEX-13
Item Weight	1.8 Kilograms
Product Dimensions	32.08 x 20.96 x 9.22 cm; 1.8 kg
Item model number	RTEX-13
Color	Gray
Style	Heater
Material	HAWA
Item thickness	1 Inches
Power source type	Electric
Voltage	240 Volts
Wattage	13 KW
Item Package Quantity	1
Flow Rate	3.17 Gallons Per Minute
Maximum Pressure	8 Bars
Plug Profile	Wall
Special Features	LED Display
Included components	Rheem RTEX-13 Residential Tankless Water Heater
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

How many amps are needed for rheem rtex - 13 240v heating tankless electric water heater

Do these tankless water heaters require an overflow line to the outside of the home or a pan like is required on normal water heaters ?

We have a 500sq' apt. 1 kitchen sink, 1 lav sink and tub/shower. This tankless heats water to both sinks but nothing to the tub/sh. Help

El titan n270 me puede alimentar 3 baños y agua caliente en toda la casa.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

23256054₫

Duties & taxes incl.

Vietnamstore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews