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Dewhot Gas Geyser 16L Constant Temperature LPG

16L Gas Geyser Outdoor Constant Temperature

The off-grid, battery-ignited Constant Temperature 16L 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 16L of hot water per minute through multiple outlets.

D Type Install outdoors only with a cover

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Consistent comfort

The smart 16L 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.

Outdoor longevity

Install outdoors with an extra large weather box cover to extend the lifespan and retain the warranty.

  • 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)

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 3 meters
16mm = between 3-9 meters

  • Max gas pressure 2.8 kPa

  • Max gas consumption 2.3 kg / hour

  • Rated heat Input 32 Kw

  • Water pressure 25-500 kPa

  • Min water output 4L / min

  • Max water output 16L / min

  • Unit weight 13.2 Kg

  • Packaged weight 15.5 kg

  • Unit size 740 x 420 x 210 mm

  • Packaged size 865 x 485 x 270 mm

  • Gas Type LPG and NG


Dewhot gas geyser double tested policy- commitment to product quality

The Dewhot Bucket Test : Determine your flow rate

16L Constant Temperature Gas Geyser FAQs

You can comfortably run multiple hot water outlets simultaneously with your 16L Constant Temperature Geyser, as long as the total water usage stays below 16 liters per minute. This makes it ideal for running two showers with flow rates of 8l per minute.

  • 2 x showers
  • 1 x showers + sink
  • 1 x Bath

Remember: for optimal performance, ensure the total water flow from all outlets doesn’t exceed 16 liters per minute.

Do the bucket test to determine your flow rate demand and make an informed decision when choosing your geyser size.


The 16L rating indicates the geyser can collectively heat 16 liters of water per minute. You will never run out of hot water as long as you have gas.

The 16L capacity is ideal for smaller homes with 2 showers or one shower and a sink.

The cost of heating a litre of water is the same regardless of the size of the geyser. The maximum amount of water a 16L gas geyser can heat at any one time is 16 litres per minute.

The constant temperature gas geysers enables you to service taps from multiple sources at the same time. For example: If all your taps have a flow rate of 8 litres per minute each, and you run one outlet for 1 minute, you will only pay for 8 litres of heating. But if you are running 2 outlets at the same time for 1 minute, you will pay for 16 litres of heating.

Help me choose my geyser

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.

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