ReNEWW House

Retrofit Net Zero: Energy. Water. Waste.

Whirlpool Corporation, along with Purdue University, has transformed an existing home near Purdue’s campus into a world class research laboratory and sustainable living showcase. ReNEWW stands for Retrofitted Net-zero Energy, Water & Waste and represents the aspirational vision for the project: to convert a home, originally built in 1928, to offset all its energy use with solar power, to only rely on locally available water sources, and to have waste handling systems in place that prevent any household waste from going to the landfill. ReNEWW House is providing valuable insights for our homebuilder collaborators and customers on technologies that enable sustainable living. We leverage the world class facilities and collaborate with Purdue researchers to accelerate the development of the next generation of ultra-high efficiency appliances that increase core performance while lowering their impact on the environment and cost to operate.

ReNEWW House 2

ReNEWW House in the News

BuildBetter with Whirlpool: progress and outcomes

BuildBetter with Whirlpool aims to help deliver an approximate 15% increase in energy efficiency compared to homes built to current government code. Ultimately, 250 resilient, energy-efficient homes will be completed in five years, and findings from the initiative...

Whirlpool Corporation named one of America’s most JUST companies for 2023

Whirlpool Corp. has been recognized as one of America’s Most JUST Companies in the annual rankings published today by CNBC and JUST Capital. The company ranked among the leaders in the Household Goods and Apparel industry. "We are proud once again to be named as one...

Whirlpool Corporation announces João Carlos Costa Brega, Executive Vice President and President, Whirlpool Latin America, to step down from role

Juan Carlos Puente, Senior Vice President and President, Whirlpool Latin American North Region, to succeed Brega Whirlpool Corporation announced today that João Carlos Costa Brega, Executive Vice President, Whirlpool Corporation, and President, Whirlpool Latin...

Whirlpool Corporation celebrates 2022 environmental, social and governance achievements

Whirlpool Corporation’s commitments to the environment, its communities, the workplace, and resolve to do the right things the right way, prove there's a lot to celebrate over 2022. Watch and see.

Whirlpool Corp. female engineers and designers put up big patent numbers

A report from the U.S. Patent and Trademark Office shows that Berrien County, Michigan, where Whirlpool Corp.’s Global Headquarters is located, was identified as the top county for women inventors that patent in the technology field of “textiles.” This category...

Whirlpool Corporation named to 2022 Dow Jones Sustainability World Index

Whirlpool Corporation announced today that it has been named to the 2022 Dow Jones Sustainability World Index (DJSI) in recognition of the company’s ongoing focus on responsible and ethical business practices. Whirlpool Corporation was also included on the DJSI North...

Whirlpool Corporation Ranks Number Three in Newsweek’s List of America’s 500 Most Responsible Companies for 2023

  Whirlpool Corporation announced today that it has moved into the No. 3 overall spot on Newsweek's 2023 list of America's Most Responsible Companies (up from No. 4 overall in 2021). The annual recognition, acknowledging the top 500 most responsible companies in...

Family finds hope for the future through Habitat for Humanity’s BuildBetter with Whirlpool

“Rent was too high, we needed more room, and we were not sure what to do.” Choua and family—husband, KongPheng, daughters Yuna and Arinya and son Vegeta faced multiple challenges that brought them to the point of seeking a better future. “We really hoped to have our...

Whirlpool Corp.’s North American washer and dishwasher plants achieve Bronze World Class Manufacturing certifications

Years ago, Whirlpool Corporation made the very important decision to have one production standard for all of its plants worldwide, which led to the implementation of World Class Manufacturing (WCM). In the years since, the company has embedded the tools and methods of...

Habitat homeowner realizes dream of providing lasting childhood memories for her son

Maya had continuously worried about the rising rent in Dickson, Tennessee, where she lives with her young son. But she had little choice, with home prices rising as well, which made her feel like saving the money for a mortgage down payment would take her a long...

Why Retrofit?

The average age of a single family home in the US is 34 years old, meaning that much of the existing housing stock was constructed in an era that offered both relatively inexpensive energy and did not consider carbon dioxide as a form of pollution that contributes to global warming.  Consequently, simple energy efficiency measures are sorely lacking in these homes—a problem with far reaching consequences, but also an opportunity for substantial energy savings.

The ReNEWW House retrofit sought to both preserve the historic character of the house, while also vastly improving its’ overall energy and water efficiency. The retrofit took place in 3 stages – first, a deep energy retrofit to get to Net Zero Energy. This was followed by an interior remodel and water system retrofit to achieve Net-Zero Water Usage, in which Whirlpool worked with Kohler Corporation. Finally, Ford Motor Company enabled the addition of a new garage with a Ford Focus BEV and EV Charging Station.

Before & After - Front of House

Before & After - Back of House

Before & After - Kitchen

Before & After - Central Area

Before & After - Basement

Before & After - Garage

Net Zero Energy

According to the US Department of Energy (DOE), residential housing units account for 22 percent of the total primary energy usage in the US. Over two thirds of this energy is used for HVAC, appliances, or water heating¹. Since the ReNEWW House is in a heating climate with many cloudy days, the home underwent a massive energy retrofit to address energy consumption and storage. This included new appliances, insulation, HVAC, water heater, lighting, windows, doors, siding and roofing. In addition, a drainline heat recovery system was added to recover waste energy from the shower drain and use it to heat incoming cold water. Finally, to get to Net Zero Energy, a Solar Thermal (PVT) System was added to the roof, to generate as much energy in one year as is used inside the house.


Solar Panel – South Side


Solar Panel – West Side


Outside Insulation


Siding & Windows


Geothermal HVAC


Water Heating


Drain Heat Recovery


LED Lighting

Net Zero Water

The average person in the United States uses 91 gallons of water per day. This water use translates into roughly $1000 per American family per year to pay for their water usage. Much of this water usage is potable, treated water that is flushed immediately down the drain. In phase 2 of the ReNEWW House Retrofit, the old, outdated water-using fixtures and appliances were replaced with new, water-efficient Kohler fixtures and Whirlpool appliances. In addition, rainwater harvesting and filtration was installed onsite for all potable water applications. Finally, in an effort to offset potable water usage for toilet flushing, a CleanBlu Greywater treatment system was installed onsite. After all these improvements, the residents of the house have been consuming roughly 21 gallons per person, per day… a ~75% reduction in water usage!

Have questions about the ReNEWW House?

Email Us at