
Take a look at our Instantaneous gas specials
Instantaneous gas hot water systems are a physically much smaller unit than a mains pressure gas hot water unit. If you currently have an instantaneous gas hot water heater or are in a smaller house or unit or you live alone, a continuous flow instantaneous unit is most probably going to be a better solution.
| Advantages | DisAdvantages |
|---|---|
Heats water only when used |
Restricted water flow |
Fits in restricted spaces |
Wastes alot of water before water is hot at taps |
Can heat water continually |
will not heat water in power outages |
temperature can fluctuate in showers |
Endurance Instantaneous gas hot water units are 5 star energy efficient, and are available in both Natural and LP Gas types.
When selecting an instantaneous gas hot water system, you should try and match your hot water needs to the output of the hot water system you're comparing.
Use this chart to calculate the size of unit you'll need to suit your family situation. Suitable for use with our most popular types of instantaneous water heaters,

| CAPACITY (litres) | PEOPLE | HOUSE SIZE |
|---|---|---|
16 |
2-4 |
2 Bedroom |
20 |
3-5 |
3 Bedroom |
26 |
4-6 |
4 Bedroom |
Instantaneous gas hot water sysyems use the continuous flow principle, only heating water when you use it.
Model sizes are based on the water flow in litres per minute.
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All makes and models. |
Authorised Dux Distributors. |
Plumbing Industry Assoc. Member. |