Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Heat Retainer / product and application

Heat Retainer
Heat Retainer

In kitchen, hot water goes into drain right after use,it’s a great waste as the remaining heat energy is also gone with water at the same time.
Our solution, Heat Retainer.Our product : HEAT RETAINER. Used hot water will be channeled into the pipe of HEAT RETAINER, the remaining heat energy in hot water can be secured for second time, to its most, for keeping things warm. HEAT RETAINER keeps food warm esp in winter time, or can defrost frozen food.


WPP School

WPP School
shanghai Art & Design Academy
shanghai, China

鲤芸 阮,
WPP School

Haimei Zhang,
WPP School

Jiahe Xi,
WPP School

Dan Luo,
WPP School