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HotWave® HotWave®
HotWave® HotWave®


The multipurpose hose sprayer that never runs out of heated water

Heated water outdoors whenever and wherever you need it!
Safe and easy to use. HotWave gives you complete control of the water temperature, spray patterns, and water pressure. Ideal for a large variety of jobs such as pet grooming, rinsing off outdoor furniture and patio items, and camping/RV living.

Click here to see how HotWave will perform in your region.

Model Number: HTW018120

Washing Car or RVPet Washing
Outdoor CleaningOutdoor Cleaning
Easy to UseWashing Car or RV

Rheem HotWave How-To Videos

HotWave Heats Water Instantly Using Tankless Water Heating Technology.

Provides Endless Heated Water Outdoors Whenever and Wherever You Need it.

HotWave Features Diagram

HotWave Nozzle Detail

4 Spray Patterns

So You’re Sure to Have the Right One For The Job at Hand

  • Shower
    This setting provides you with the highest flow and the maximum amount of water. Cleaning your pet, hosing down a kid after a trip to the beach, or just washing off dirty shoes from a muddy hike is faster and more efficient with warm water and the shower setting, so spray away!
    Shower Spray Icon
  • Flat
    Watch soapy suds wash away from the car or even your dog. This spray pattern is useful for a variety of jobs, but gentle enough for your furry friend.
    Flat Spray Icon
  • Jet
    Wash away dust, dirt, and mud using the jet spray pattern on outdoor patio furniture, grill, kennel, bicycle, athletic gear, and anywhere else where you need spraying power.
    Jet Spray Icon
  • Center
    This setting is ideal for washing with less spray intensity for pets and gardening. Perfect when you need a light mist.
    Center Spray Icon

Performance Guide

Your location’s average groundwater temperature and nozzle settings will affect the performance of Hotwave®. Follow these 2 steps to confirm Hotwave® meets your needs.

1Use the U.S. Ground Water Temperature Map to locate your zone.
Click on the map for step 2.


RheemLabs™ and how the HotWave™ was Born

The RheemLabs™ team is a cross-functional group set out to innovate creative, new solutions to some of consumers’ biggest hot water challenges. With over 50 years of combined business experience, the team has expertise in fields including engineering, marketing, product management, sales, and more. The group leverages these strengths to holistically address problems and provide winning solutions to consumers, enabling transformative hot water experiences for all.