Head to head · updated 5 September 2026

Dessalator D100 DUO vs Water Makers Australia Performance Double 140L · 12V feed

D100 DUO costs 1.6× less energy per litre (7.0 against 11.5 Wh/L). Performance Double 140L · 12V feed makes 1.4× the water per hour (140 against 100 L/hr).

One side of this comparison rests on a reported figure. Dessalator D100 DUO and Water Makers Australia Performance Double 140L · 12V feed are published by the manufacturer and corroborated across independent lookups, but we have not yet read the figures page-in-hand the way we have for the rest of the table. The comparison is shown because it is still the best available, not because it is settled. Dual-power unit. This row is the DC mode at its stated 700 W maximum; the AC motor is rated separately and is not tabled. Nameplate estimate: 1.5 kW high-pressure motor rating plus 110 W feed pump. This is not measured total running draw; the motor rating may describe shaft output rather than electrical input. How we source figures.

SpecD100 DUOPerformance Double 140L · 12V feed
BrandDessalatorWater Makers Australia
Output100 L/hr140 nominal L/hr
Power draw700 W1,610 W
Energy per litre7.0 Wh/L11.5 Wh/L
Run time for 100 L1.0 h0.7 h
Energy for 100 L700 Wh1,150 Wh
Power source12/24V DCAC 240V
ConfigurationModularModular
Membranesnot published2 × SW30-2540
Indicative priceon request$7,791
Efficiency rank7 of 3423 of 34

Highlighted cells mark the better figure on that row alone. Lower is better for energy, run time and price; higher is better for output.

Buy the D100 DUO if…

Your boat runs on solar and every watt-hour is spoken for, because this is the cheaper litre to make.

Get a quote on the D100 DUO

Buy the Performance Double 140L · 12V feed if…

You want tanks full in the shortest possible run, or you have a genset that is going to run anyway.

Get a quote on the Performance Double 140L · 12V feed

Common questions

Which is more efficient, the D100 DUO or the Performance Double 140L · 12V feed?
The D100 DUO, at 7.0 watt-hours per litre against 11.5. Over 100 litres a day that is a difference of about 450 Wh.
Which makes more water, the D100 DUO or the Performance Double 140L · 12V feed?
The Performance Double 140L · 12V feed, at 140 L/hr against 100. That is 1.4 times the output per hour running.
Which is cheaper?
We do not have indicative pricing for both of these. Ask a stockist for a landed AUD quote on each.
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