GROHE has expanded its shower portfolio with the GROHE Rapido Heat Recovery solution. Developed with the Dutch startup Hamwells, the concealed heat recovery shower system collects warm water from the drain and pumps it through a separate pipe surrounded by the cold-water supply, transferring some of its residual heat. The result? A four-person household can save up to €299 per year, reducing energy costs and CO2 emissions by up to 48%.
The design and significant energy savings don’t come at the cost of a luxury shower experience either, the company says. The GROHE Rapido Heat Recovery is compatible with GROHE thermostats such as SmartControl. It is available in mono or duo versions, supporting either a one- or two-spray head shower combined with a hand shower. The shower system offers two different efficiency grades: a single-pipe heat exchanger version or the more efficient double-pipe heat exchanger option. The double-pipe version maximises efficiency by providing a larger contact surface for heat transfer.
GROHE Rapido Heat Recovery serves as an accessible and less invasive solution, helping to reduce CO2 emissions while maintaining comfort and design integrity.
The system works similarly to a traditional shower setup. Cold water enters the house around 10°C and is heated to around 60°C. The thermostat mixes the hot and cold water to a comfortable shower temperature of 38°C. After the shower, water usually flows down the drain at approximately 34°C. With the GROHE Rapido Heat Recovery shower system, the warm wastewater is pumped through a separated pipe surrounded by the cold-water supply, transferring some of its residual heat.
With the cold water now preheated, less hot water is needed to achieve the desired shower temperature, thus saving energy. The double-pipe version maximises efficiency by providing a larger contact surface for the wastewater to transfer its heat. Once the heat has been transferred, the wastewater is disposed of.
GROHE Rapido Heat Recovery is based on the GROHE Rapido Shower Frame, enabling fast, easy, and safe installation of concealed shower systems for partners. Thanks to its pre-assembled components, installation time can be reduced by up to three hours. Requiring minimal installation effort and delivering maximum energy efficiency, it’s a low-impact upgrade that offers high-impact savings for years to come.
www.grohe.com/en-GB