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Through the stylish LCD display and control panel, precise temperature can be selected with operating information combined at a glance.  By detecting the incoming temperature and flow rate from the water inlet, it can sustain a stable temperature through precise calaulation of energy required.  It can cope with varient flow rate, yet maintaing a comfort showering experience.  The DEL SL series comes with a temperature indication light to ensure safety.  It also fulfill the IP25 hoseproof standard which allows the unit to be installed within the showering area, definitely a combination of safety and reliability.


‧LCD temperature display
‧Tmax key-Child-proof system
‧Precise temperature selection from 30℃-60℃
‧Saves up to 30 % energy compared to cylinder systems
‧Profit-Rapid@ for a quick installation
‧For hard and soft water
More Functions:
  • 18, 21, 24 kW (adjustable) and 27kW
  • M1 & M2 Quick temperature selection with memory key
  • Minor temperature adjustment can be made between the range
    35℃ – 43℃
  • Anti-scalding protection Indicator lignt
  • Electronic safety system with air detection
  • Bare wire heating system with pressure-tested copper casing
  • Wired comfort remote control (optional)
  • Hoseproof to IP25
*Compared hydraulic instantaneous water heaters; subject to pattern of use.

Multifunction LCD display :


Model DEL 18/21/24 SL DEL 27 SL

Power rating(400V)kW

18/ 21/ 24

16.2/ 19/ 21.7



Size (H/W/D)mm 478 x 225 x 105
Temperature range 30℃-60℃
Working pressure 10 Bar
Starting volume ≧2.5L
Protection level IP25
Inlet size 15mm(G1/2″)
Weight 4.3kg
Control unit Electronic Control
Unit Type Centralized
LCD display
Childproof setting 30℃-60℃
Bare wire heating system
Elect. air detetion system
Elect. safety system with temp. cut-off device
Elect. Flow rate control
Solar operation (preheated water)