ENERGY STAR Products

What Is a Heat Pump Water Heater and How Does It Work?

A heat pump water heater is beyond impressive. To many people, how it works is somewhat of a mystery. Once you understand how it heats water, it will make sense that it is the ultimate in efficiency. It helps homeowners qualify for tax credits, earn utility company incentives and enjoy energy cost savings.

What It Is

We’ll start with the Rheem® ProTerra® Hybrid Electric Heat Pump Water Heater. It’s a heat pump and electric water heater in one.

Rheem Celebrates a Significant Month with the Environmental Protection Agency’s ENERGY STAR Program

Showing the Way to a Clean Energy Future

In honor of Earth Day, Rheem® is delighted to declare its fourth consecutive win as ENERGY STAR® Partner of the Year in Sustained Excellence. Rheem is leading the way to a clean energy future, not just on Earth Day, but every single day.

What This Means for Homeowners

Cutting down on those hefty energy bills can be a real relief.

Shining a Light on Rheem ENERGY STAR Certified Water Heaters for Earth Day

Earth Day is once a year, but many people—like us—think about energy efficiency all year long. We’ve made it easy to access information about Rheem® ENERGY STAR® certified water heaters.

Saving the Planet While Saving on Energy Costs

Efficient water heaters reduce carbon emissions. For example, our heat pump water heaters are up to 5X the efficiency of a standard tank1. They produce no greenhouse gas emissions on site and reduce energy costs.

Rheem Maximus Family Delivers Maximum Efficiency, Powerful Performance and Smart Control

Designed to give the efficiency, performance and smart features you deserve, Rheem® now offers three Maximus® models. The Maximus family provides a comprehensive selection of super high efficiency condensing gas-fired water heaters that all meet ENERGY STAR® 5.0 requirements. With energy cost and installation savings, tax credits and powerful performance, everything about Maximus is a win-win. There’s no need to choose between sustainability goals and enjoying hot water.

Review of Maximus Water Heater Models

With a recently expanded line,

Celebrating ENERGY STAR Day with Efficiency and Savings

Rheem® is dedicated to designing for efficiency and helping you maintain a comfortable home. We have a history of partnering with the U.S. EPA’s ENERGY STAR program to help you save energy, save money and be more environmentally conscious with our selection of ENERGY STAR certified heating products. Now with the Inflation Reduction Act, you have more opportunities than ever to choose high efficiency solutions and get rewarded. As we celebrate ENERGY STAR Day,

Why You Should Care About Energy Efficiency Day

Join us in celebrating Energy Efficiency Day. This time of year, governments, organizations, manufacturers and utilities come together to promote energy savings and carbon emission reduction. To fully engage in this initiative, start by understanding what makes an appliance energy efficient. This knowledge will help you understand how energy efficiency benefits homes and businesses to make a positive impact on our environment!

Demystifying Uniform Energy Factor (UEF)

Let’s start by understanding water heater efficiency ratings.

ENERGY STAR on Incentives for High-Efficiency Water Heaters

Because sustainable product design is top of mind, we are honored to be named an ENERGY STAR® 2023 Partner of the Year for the third year in a row and elevated to “Sustained Excellence” status. In honor of Earth Day, this post highlights how ENERGY STAR influences the transition to a clean energy future.

ENERGY STAR Earth Day 2023 Theme

As we transition to cleaner energy sources, smart decisions about your home’s water heater can help you save energy,

What You Need to Know About ENERGY STAR 5.0

New ENERGY STAR® 5.0 performance requirements for residential water heater certification will become effective April 18, 2023. We’re making it easy for you to know which Rheem® water heaters are ENERGY STAR certified.

What’s Included in ENERGY STAR 5.0

The ENERGY STAR 5.0 requirements mirror finalized CEE (Consortium for Energy Efficiency) highest product category tiering and also qualify for the expanded 25C federal tax credit.

Heat Pump Water Heater Category
Qualifying UEF Based on Highest CEE Tier

240V 30 &

Savings and Efficiency Go Hand in Hand with ENERGY STAR

Rheem® products displaying the blue ENERGY STAR® logo have passed certification for strict energy efficiency testing. ENERGY STAR certification and energy efficiency mean energy cost savings for homeowners. That’s more money in your pocket compared to standard efficiency water heating products.

We’ve collected information about energy savings, sustainability and highly efficient water heaters to celebrate ENERGY STAR Day this year. You’ll learn their perspective on how to save today, save tomorrow and save for good.

Celebrating Energy Efficiency Day with Rheem

With Energy Efficiency Day now here, we wanted to reflect on what it means to us to be energy efficient. Energy Efficiency Day falls on the first Wednesday of October every year. It aims to spread awareness about the benefits of energy efficiency, from lower costs to healthier homes and environmental conservation. Here at Rheem®, we’re passionate about making sure you have the resources to meet your hot water needs and reduce your energy use and cost.