Image: DEVISelf-limiting cable on hot water pipes keeps water at temperature right to the tap, so hot water arrives immediately. It allows a single-pipe system with no return loop, and supports disinfection for Legionella control.
Benefits and advantages
- Hot water at every tap immediately, reducing water waste
- Single-pipe system with thermally controlled, disinfected hot water at the tap
- Lower initial cost than a recirculating system: fewer pipes, less insulation and labour
- Energy efficient
- Flexible and easy to install: cut to length and fitted directly on the pipe
System design starting points
- DEVIhotwatt self-limiting cable (7–12 W/m) fitted directly on the hot water pipe, under insulation
- Works with circulation systems and, uniquely, single-pipe systems from source to tap
- Temperature control and disinfection cycles set at the controller
- Sized per pipe run and pipe diameter
Typical uses
Products
Reference: DEVI Domestic hot water, Heat Zone 2026 catalogue p. 6, 31









