20L Gas Geyser Indoor Fan Forced
The compact indoor Room Sealed Fan Forced 20L Gas Geyser is one of the safest and most efficient gas water heaters on the market.
TYPE C Install indoors with a flue
Shipped with a free large solid flue
Buy Now Pay Later. Payment Options at checkout.
Hot water demand
Designed for medium sized homes, the 20L Fan Forced Gas Geyser maintains a consistent temperature when running multiple outlets at the same time.
Energy saving
Fan-forced efficiency provides maximized energy savings by heating only what you need.
Triple safety
The fan removes fumes, auto shut-off prevents leaks, and pressure relief safeguards for worry-free hot water.
- Heavy-duty copper radiator
- 88% energy efficiency
- Can be installed in confined and unventilated spaces
- Wind resistant 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 Aluminium cover
- Flame failure safety device
- Inverter compatible
Max gas pressure 2.8kPa
Max gas consumption 2.9 kg / hour
Rated heat Input 40Kw
Rated electric power 45W
IP rate IPX4D
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 240V/60Hz
Sku: RS20DH
Cylinder vaporisation rates
(maximum short term use)
48kg = 1,9kg/hr
19Kg = 0,92kg/hr
9kg = 0,46kg/hr
Minimum cylinder size = 48kg
Minimum regulator size = 4kg/hr
Flue size = 130mm
Minimum ID pipe size
16mm = less than 8 meters
20mm = between 8-25 meters
Addons for the 20L Outdoor Fan Forced Gas Geyser
Dewhot 20L Indoor Fan Forced Gas Geyser overview
Dewhot gas geyser double tested policy- commitment to product quality
The Dewhot Bucket Test : Determine your flow rate
How to choose your type of Gas geyser
Indoor Fan Forced 20L Gas Geyser FAQs
20L Fan Forced Geyser are designed for medium-sized homes and are multiple-use geysers which means you can run your outlets simultaneously.
- 3 x showers + basin
- 1 x Bath + 2 showers + basin
Remember: for optimal performance, ensure the total water flow from all outlets doesn’t exceed 16 litres per minute.
Do the bucket test to determine your flow rate demand and make an informed decision when choosing your geyser size.
The 20L rating indicates the geyser can collectively heat 20 litres of water per minute. You will never run out of hot water as long as you have gas.
The 20L capacity is ideal for medium sized homes. It can service 3 showers and a sink, or 1 bath, 2 showers and a sink simultaneously.
The fan forced gas geyser is the most efficient and the cost of heating a litre of water is the same regardless of the size of the geyser. The maximum amount of water a 20L gas geyser can heat at any one time is 20 litres – and this large capacity enables you to service taps from multiple sources at the same time. For example: If all your taps have a flow rate of 10 litres per minute each, and you run one outlet for 1 minute, you will only pay for 10 litres of heating. But if you are running 2 outlets at the same time for 1 minute, you will pay for 20 litres of heating.
The logic tree is a tool that guides you through a series of questions to help find the gas water heater solution the would be most suitable for your individual home set up.