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Sizing calculator

What fits your boat, and what it costs to run.

Same dataset as the table, plus your crew and your power. DC systems must fit inside the daily energy you can spare; AC systems need a generator or shore power; petrol needs fuel.

Your boat
Your power
40L
water per day
280L
per trip, no tanks
2,400Wh
usable bank at 50%
37 systems fit
2 don't fit your power
Zen 30
Schenker · 12/24V DC
Fits inside your spare energy
Run time, of 24 h1.3 h
Energy, of 1,500 Wh spare147 Wh
6%
of usable bank
$6,300
indicative
Zen 100
Schenker · 12/24/48V DC or AC
Fits inside your spare energy
Run time, of 24 h0.4 h
Energy, of 1,500 Wh spare160 Wh
7%
of usable bank
$9,600
indicative
Ventura 150 Deluxe
Spectra · 12/24V DC
Fits inside your spare energy
Run time, of 24 h1.7 h
Energy, of 1,500 Wh spare180 Wh
8%
of usable bank
$6,000
indicative
Ventura 150 Connect
Spectra · 12/24V DC
Fits inside your spare energy
Run time, of 24 h1.7 h
Energy, of 1,500 Wh spare180 Wh
8%
of usable bank
$7,400
indicative
Newport 400C
Spectra · 12/24/48V DC
Fits inside your spare energy
Run time, of 24 h0.6 h
Energy, of 1,500 Wh spare180 Wh
8%
of usable bank
$14,500
indicative
Zen 50
Schenker · 12/24V DC
Fits inside your spare energy
Run time, of 24 h0.8 h
Energy, of 1,500 Wh spare192 Wh
8%
of usable bank
$7,800
indicative
D100 DUO
Dessalator · 12/24V DC
Fits inside your spare energy
Run time, of 24 h0.4 h
Energy, of 1,500 Wh spare280 Wh
12%
of usable bank
on request
indicative
Performance Triple 200L · 12V feed
Water Makers Australia · AC 240Vnameplate estimate
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.2 h
Energy, of 1,500 Wh spare322 Wh
13%
of usable bank
$9,181
indicative
D60 Freedom
Dessalator · 12/24V DC
Fits inside your spare energy
Run time, of 24 h0.7 h
Energy, of 1,500 Wh spare367 Wh
15%
of usable bank
on request
indicative
D60 DUO
Dessalator · 12/24V DC
Fits inside your spare energy
Run time, of 24 h0.7 h
Energy, of 1,500 Wh spare367 Wh
15%
of usable bank
on request
indicative
Portable AC 140L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$5,329
indicative
Modular AC 140L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$5,460
indicative
Portable 48VDC 140L
Rainman · 48V DC
Fits inside your spare energy
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$6,240
indicative
Frame AC 140L, manual
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$7,685
indicative
Frame 48VDC 140L, manual
Rainman · 48V DC
Fits inside your spare energy
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$8,666
indicative
Frame AC 140L, auto
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$11,168
indicative
Frame 48VDC 140L, auto
Rainman · 48V DC
Fits inside your spare energy
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare394 Wh
16%
of usable bank
$12,115
indicative
Scout SW20
LEDI · 12V DC
Fits inside your spare energy
Run time, of 24 h2.0 h
Energy, of 1,500 Wh spare400 Wh
17%
of usable bank
on request
indicative
Modular 48VDC 140L
Rainman · 48V DC
Fits inside your spare energy
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare417 Wh
17%
of usable bank
$6,421
indicative
Portable 24VDC 55L
Rainman · 24V DC
Fits inside your spare energy
Run time, of 24 h0.8 h
Energy, of 1,500 Wh spare453 Wh
19%
of usable bank
$4,898
indicative
Modular 24VDC 55L
Rainman · 24V DC
Fits inside your spare energy
Run time, of 24 h0.8 h
Energy, of 1,500 Wh spare453 Wh
19%
of usable bank
$5,053
indicative
Automatic Triple 200L · AC feed
Water Makers Australia · AC 240Vnameplate estimate
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.2 h
Energy, of 1,500 Wh spare456 Wh
19%
of usable bank
$19,250
indicative
Performance Double 140L · 12V feed
Water Makers Australia · AC 240Vnameplate estimate
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.3 h
Energy, of 1,500 Wh spare460 Wh
19%
of usable bank
$7,791
indicative
Frame AC 240L Torrent, manual
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.2 h
Energy, of 1,500 Wh spare505 Wh
21%
of usable bank
$12,089
indicative
Frame AC 240L Torrent, auto
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.2 h
Energy, of 1,500 Wh spare505 Wh
21%
of usable bank
$15,089
indicative
Portable 12VDC 34L
Rainman · 12V DC
Fits inside your spare energy
Run time, of 24 h1.3 h
Energy, of 1,500 Wh spare508 Wh
21%
of usable bank
$4,898
indicative
Modular 12VDC 34L
Rainman · 12V DC
Fits inside your spare energy
Run time, of 24 h1.3 h
Energy, of 1,500 Wh spare508 Wh
21%
of usable bank
$5,053
indicative
Frame AC 100L, manual
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.4 h
Energy, of 1,500 Wh spare556 Wh
23%
of usable bank
$8,642
indicative
Frame AC 100L, auto
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.4 h
Energy, of 1,500 Wh spare556 Wh
23%
of usable bank
$12,131
indicative
Portable AC 75L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.6 h
Energy, of 1,500 Wh spare730 Wh
30%
of usable bank
$4,402
indicative
Modular AC 75L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.6 h
Energy, of 1,500 Wh spare730 Wh
30%
of usable bank
$4,522
indicative
Portable AC 70L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.6 h
Energy, of 1,500 Wh spare787 Wh
33%
of usable bank
$5,296
indicative
Modular AC 70L
Rainman · AC 240V
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.6 h
Energy, of 1,500 Wh spare787 Wh
33%
of usable bank
$5,299
indicative
Performance Single 80L · 12V feed
Water Makers Australia · AC 240Vnameplate estimate
Fits energy budget via a suitably rated inverter
Run time, of 24 h0.5 h
Energy, of 1,500 Wh spare805 Wh
34%
of usable bank
$6,401
indicative
Portable Petrol 75L
Rainman · Petrol
Petrol · about 0.4 L fuel a day
Run time, of 24 h0.6 h
No electrical drawfuel
—
of usable bank
$5,804
indicative
Portable Petrol 70L
Rainman · Petrol
Petrol · about 0.4 L fuel a day
Run time, of 24 h0.6 h
No electrical drawfuel
—
of usable bank
$6,699
indicative
Portable Petrol 140L
Rainman · Petrol
Petrol · about 0.2 L fuel a day
Run time, of 24 h0.3 h
No electrical drawfuel
—
of usable bank
$6,731
indicative
Run time assumes the midpoint of the manufacturer’s output range. Wh/day is your daily litres multiplied by the system’s Wh per litre, shown against the energy you said you can spare. A day’s water in under two hours is comfortable; over six is a system you will resent. AC systems shown against battery energy require an inverter sized for continuous load and motor-start surge; conversion losses are not included. Rows marked nameplate estimate use published component ratings rather than measured total draw.
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