12L Indoor Gas Geyser Constant Temperature
The off-grid, battery-ignited Constant Temperature 12L Gas Geyser, built with durable copper radiator technology, delivers a consistent flow of hot water with super energy savings.
This smart multiple-use application gas geyser can provide up to 12L of hot water per minute through multiple outlets.
B Type Install indoors with a flue
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Consistent comfort
The smart 12L Constant Temperature Gas Geyser automatically adjusts to water flow to maintain a constant temperature through multiple outlets at the same time.
Energy saving
Enjoy maximised energy savings with on-demand heating, only heating water as you need it.
Double safety
Flame shut-off and pressure relief protection for ultimate peace of mind.
Ventilation
Install indoors with a 110mm solid flue or flexi flue.
- Requires no electricity – flame ignition and geyser function are battery operated
- Copper radiator
- Touch button temperature control
- 84% energy efficiency
- Gas efficient (reduces gas consumption according to flow demand)
- Compatible with mixer taps
- Start up & geyser function operate on low water pressure
- Flame failure safety device (FFD)
- Pressure relief protection (to function effectively, the valve must be set to your water pressure)
- Available in a natural gas option
- Solar Battery optional extra
Max gas pressure 2.8 kPa
Max gas consumption 1.44 Kg / hour
Rated Input 24 Kw
Water pressure 25-500 kPa
Water Output (min/max) 3L-12L / min
Unit weight 9.6 Kg
Packaged weight 11.2 Kg
Unit size 680 x 345 x 180 mm
Packaged size 715 x 400 x 240 mm
Gas Type LPG / NG
Sku: ND12CTDH
Cylinder vaporisation rates
(maximum short term use)
48kg = 1,9kg/hr
19Kg = 0,92kg/hr
9kg = 0,46kg/hr
Minimum cylinder size = 19kg
Minimum regulator size = 4kg/hr
Minimum ID pipe size
12mm = less than 6 meters
12mm = less than 5 meters
12mm = less than 5 meters
12mm = less than 5 meters
16mm = between 6-20 meters
Products required for the indoor 12L Constant Temperature Gas Geyser
Dewhot gas geyser double tested policy- commitment to product quality
The Dewhot Bucket Test : Determine your flow rate
12L Constant Temperature Gas Geyser FAQs
You can comfortably run multiple hot water outlets simultaneously with your 12L Constant Temperature Geyser, as long as the total water usage stays below 12 litres per minute. This makes it ideal for running one shower and one basin with a collective flow rate of 12L per minute.
- 1 x showers + basin
Remember: for optimal performance, ensure the total water flow from all outlets doesn’t exceed 12 litres per minute.
Do the bucket test to determine your flow rate demand and make an informed decision when choosing your geyser size.
The 12L rating indicates the geyser can collectively heat 12 litres of water per minute. You will never run out of hot water as long as you have gas.
The 12L capacity is ideal for smaller homes. It can service multiple outlets with a collective flow rate of 12 litres per minute simultaneously.
The cost of heating a litre of water is the same regardless of the size of the geyser. The maximum amount of water a 12L gas geyser can heat at any one time is 12 litres per minute.
The constant temperature gas geysers enable you to service taps from multiple sources at the same time.
For example: If all your taps have a flow rate of 6 litres per minute each, and you run one outlet for 1 minute, you will only pay for 6 litres of heating. But if you are running 2 outlets at the same time for 1 minute, you will pay for 12 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.