Rainman Portable AC 75L vs Schenker Zen 50
Zen 50 costs 3.8× less energy per litre (4.8 against 18.2 Wh/L). Portable AC 75L makes 1.4× the water per hour (68.5 against 50 L/hr). Portable AC 75L is about $3,398 cheaper on indicative pricing.
| Spec | Portable AC 75L | Zen 50 |
|---|---|---|
| Brand | Rainman | Schenker |
| Output | 55–82 L/hr | 50 L/hr |
| Power draw | 1,250 W | 240 W |
| Energy per litre | 18.2 Wh/L | 4.8 Wh/L |
| Run time for 100 L | 1.5 h | 2.0 h |
| Energy for 100 L | 1,825 Wh | 480 Wh |
| Power source | AC 240V | 12/24V DC |
| Configuration | Portable | Modular |
| Membranes | 1 × 40in | 2 × 2.5×21in |
| Indicative price | $4,402 | $7,800 |
| Efficiency rank | 27 of 30 | 6 of 30 |
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 AC 75L if…
You want tanks full in the shortest possible run, or you have a genset that is going to run anyway; 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 AC 75LBuy the Zen 50 if…
Your boat runs on solar and every watt-hour is spoken for, because this is the cheaper litre to make; you have no generator and no intention of fitting one.
Get a quote on the Zen 50Common questions
- Which is more efficient, the Portable AC 75L or the Zen 50?
- The Zen 50, at 4.8 watt-hours per litre against 18.2. Over 100 litres a day that is a difference of about 1,345 Wh.
- Which makes more water, the Portable AC 75L or the Zen 50?
- The Portable AC 75L, at 68.5 L/hr against 50. That is 1.4 times the output per hour running.
- Which is cheaper?
- On indicative pricing the Portable AC 75L at $4,402, about $3,398 less than the other. Both figures exclude freight, duty and installation, and Australian dealer pricing normally reads higher.
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