20L Gas Geyser (RS20) Room Sealed Fan Forced


Indoor Gas Geyser

Multiple use application 20L Gas Geyser (run multiple outlets simultaneously)

Shipped with a Free Large Solid Flue

The cutting edge RS20 gas water heater is equipped with many unique features and is constructed out of high-quality components. Versatile and compact, the Dewhot RS20 Geyser is one of the safest and most efficient gas water heaters on the market and can be used both indoors and outdoors.


Install indoors or outdoors
For indoor installations you need a flue (RS20 standard or compact)
For outdoor installations you need a flue and a cover (weather box) 




  • Heavy duty copper radiator
  • 88% energy efficiency
  • Can be installed in confined and unventilated spaces
  • Wind resistent burner
  • Pressure Relief Protection (to function effectively, the valve must be set to your water pressure)
  • Touch button temperature control
  • Compatible with mixer taps
  • Ensures constant temperature when multiple outlets are used simultaneously
  • Compact design with a brushed aluminum cover
  • Flame failure safety device
  • Inverter compatible

Technical Specifications

Max gas pressure
Max gas consumption
2.9 kg / hour
Rated heat Input
Rated electric power
IP rate
Water pressure
25-500 kPa
Water Output (min/max)
2.5L - 20L / min
Unit weight
17.2 Kg
Packaged weight
18.7 kg
Unit size
575 x 365 x 133 mm (+200 for flue)
Packaged size
740 x 430 x 220mm
Rated voltage

RS20DH Geyser Accessories