Rheem

Rheem RTEX-08 8kW 240V Tankless Electric Water Heater | On-Demand Hot Water

High-performance tools and home improvement made for confident daily results

$346.03

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium tools and home improvement quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose TaskHolt Tools

Experience instant hot water with a compact tankless design

The Rheem RTEX-08 Tankless Electric Water Heater delivers on-demand hot water at 240V with an 8kW rating, eliminating the need for a bulky storage tank. It provides up to 1.95 gallons per minute (GPM), making it well suited for small kitchens, compact bathrooms, or point-of-use installations. Its slim footprint helps reclaim cabinet space while keeping your hot water accessible when you turn on the tap.

Core features that matter

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control for efficient operation
  • 8kW model with flow rate up to 1.95 GPM
  • Side 1/2" NPT water connections for straightforward plumbing
  • On demand; continuous hot water when you turn it on

Why choose on-demand water heating

In spaces where routing large tanks isn’t feasible, this unit minimizes clutter while delivering hot water exactly when you need it. The self-regulating design adapts to your flow and temperature preferences, helping you target comfort without overspending.

  • Ideal for apartments, small homes, or dedicated point-of-use locations
  • Easy installation with a versatile, mountable profile

Practical setup and daily use

Install near sinks, under a cabinet, or in a utility alcove where hot water is most needed. The 1/2" NPT connections simplify plumbing, and the adjustable digital display makes temperature control precise for everyday routines.

Note: Performance varies with your home's water flow and electrical setup.

FAQ

Q: What is the maximum flow rate of the Rheem RTEX-08?

A: The RTEX-08 delivers up to 1.95 GPM at 240V.

Q: Is the RTEX-08 suitable for point-of-use installation?

A: Yes, its compact, wall-mountable design and 1/2" NPT connections support convenient point-of-use setups.