Watermaker sizing and system design in Australia.
Working out what the boat actually needs before anyone quotes hardware: daily litres, the voltage, the space, and whether your power system can carry it.
What sizing and system design involves
Daily litres, honestly
Crew multiplied by realistic consumption, not the worst week you ever had. Oversizing costs money twice — once at purchase and again in the energy a bigger pump draws every run.
The voltage decision
Voltage does not change efficiency, but it changes what your boat can run without starting something. A 12 V system on a 12 V bank is simpler than a 240 V unit that only lives when the genset does.
The power budget
The number that decides everything: watt-hours per litre times daily litres, against what your solar and bank can spare after the fridge. This is the calculation the whole comparison table exists to make possible.
Space and integration
Modular systems fit around obstructions where a single-frame unit will not. Whether it shares a seacock, how the brine leaves, and where the noise ends up are all design decisions, not install details.
What to ask before you book
- What daily litres are you sizing this for, and from what assumption?If the number is not written down, it is not a design. Ask what crew and per-person figure it came from.
- What is the Wh per litre at my voltage, from the rated draw?It is output divided into draw and no brand prints it. A designer who cannot answer is quoting a box, not a system.
- Will this run off solar, or does it need the engine or genset?It changes the boat you end up with. Run it against your own array before agreeing to anything.
- How much does output fall in warm or brackish water?Rated output is at a stated temperature and salinity. Northern Australian water in summer is neither.
Every provider that offers sizing and system design 0
Common questions
- How many Australian businesses handle watermaker sizing and system design?
- 0 of the 37 verified providers in our directory list sizing and system design among their services, across 0 states (). That is what each business claims in its own listing; confirm scope and availability when you call.
- What does watermaker sizing and system design cost?
- We do not publish prices for it, because they turn on the boat, the brand and the travel involved, and a made-up range would be worse than none. The four questions above are what turn a vague number into a comparable quote — ask them of two providers and the difference will be obvious.
- Is there someone near me?
- Local coverage for this is thin outside the major refit precincts. Start with the state pages; several providers travel or ship nationally.
Other services
Before you call anyone
How this list is built. A business appears here when its own directory listing, its category, or the note recorded when we verified it names this work. Nothing is inferred from business type: a dealer is not assumed to install, and an engineering firm is not assumed to know watermakers. Where a listing is silent, the business is absent from this page even if it does the work — ask them.