System operation and benefits
A hot water recirculation system provides instant hot water at every point of use by maintaining constant circulation in the system. This technology eliminates the wasteful use of cold water, which runs off while waiting for the temperature to rise.
Key benefits :
- Water savings (up to 15,000 litres/year for a 4-person household)
- Improved comfort (immediate availability of hot water)
- Reduced energy losses (less unnecessary reheating)
- Compatible with most existing water heaters
Detailed profitability analysis
Initial investment
Installation costs vary according to configuration:
- Basic system (pump + piping): €800-1,500
- Intelligent system with control: €1,500-2,500
- Associated plumbing work: variable
Savings potential
- Water: 50-80% reduction in wastage
- Energy: 10-15% on DHW production
- Time: eliminating the daily wait
The payback period is generally between 3 and 7 years, depending on the size of the network and consumption habits.
Technical solutions available
1. Pump system
- Pump installed on hot water return
- Continuous or intermittent operation
- Most economical installation solution
2. Intelligent system
- Sensor-based need detection
- Activation only during periods of use
- Advanced energy optimization
3. Dedicated feedback loop
- Separate circuit for recirculation
- Best-performing solution
- Requires installation during construction
Essential selection criteria
To select the right system :
- Size of dwelling (surface area and number of water points)
- Type of DHW production (instantaneous or storage)
- Insulating existing pipes
- Budget available for investment
Financial assistance available
Some solutions eligible for aid :
- MaPrimeRénov’
- Zero interest eco-loan
- Energy Savings Certificates
- Specific local aid
Customized support
Our hydraulic efficiency experts offer :
- Free audit of your installation
- Precise calculation of savings potential
- Turnkey installation by professionals
- Post-installation performance monitoring
To determine whether a recirculation system is right for your home, and to find out exactly what the savings potential is, our technical advisors are at your disposal for a complete analysis of your configuration.
