Rainman Portable 48VDC 140L vs Water Makers Australia Automatic Triple 200L · AC feed
Portable 48VDC 140L costs 1.2× less energy per litre (9.8 against 11.4 Wh/L). Automatic Triple 200L · AC feed makes 1.6× the water per hour (200 against 127 L/hr). Portable 48VDC 140L is about $13,010 cheaper on indicative pricing.
One side of this comparison rests on a reported figure. Water Makers Australia Automatic Triple 200L · AC feed is 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. Nameplate estimate: 1.5 kW high-pressure motor rating plus the Davey XF171S feed pump's published 0.78 kW P1 input. This is not measured total running draw. How we source figures.
| Spec | Portable 48VDC 140L | Automatic Triple 200L · AC feed |
|---|---|---|
| Brand | Rainman | Water Makers Australia |
| Output | 100–154 L/hr | 200 nominal L/hr |
| Power draw | 1,250 W | 2,280 W |
| Energy per litre | 9.8 Wh/L | 11.4 Wh/L |
| Run time for 100 L | 0.8 h | 0.5 h |
| Energy for 100 L | 984 Wh | 1,140 Wh |
| Power source | 48V DC | AC 240V |
| Configuration | Portable | Framed |
| Membranes | 2 × 40in | 3 × SW30-2540 |
| Indicative price | $6,240 | $19,250 |
| Efficiency rank | 12 of 34 | 22 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 Portable 48VDC 140L if…
Your boat runs on solar and every watt-hour is spoken for, because this is the cheaper litre to make; the purchase price matters more to you than the running cost; you want to lift the whole thing off the boat between trips.
Get a quote on the Portable 48VDC 140LBuy the Automatic Triple 200L · AC 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 Automatic Triple 200L · AC feedCommon questions
- Which is more efficient, the Portable 48VDC 140L or the Automatic Triple 200L · AC feed?
- The Portable 48VDC 140L, at 9.8 watt-hours per litre against 11.4. Over 100 litres a day that is a difference of about 156 Wh.
- Which makes more water, the Portable 48VDC 140L or the Automatic Triple 200L · AC feed?
- The Automatic Triple 200L · AC feed, at 200 L/hr against 127. That is 1.6 times the output per hour running.
- Which is cheaper?
- On indicative pricing the Portable 48VDC 140L at $6,240, about $13,010 less than the other. Both figures exclude freight, duty and installation, and Australian dealer pricing normally reads higher.