Head to head · updated 5 September 2026

Schenker Zen 100 vs Rainman Frame AC 100L, manual

Zen 100 costs 3.5× less energy per litre (4.0 against 13.9 Wh/L). Frame AC 100L, manual is about $958 cheaper on indicative pricing.

SpecZen 100Frame AC 100L, manual
BrandSchenkerRainman
Output100 L/hr70–110 L/hr
Power draw400 W1,250 W
Energy per litre4.0 Wh/L13.9 Wh/L
Run time for 100 L1.0 h1.1 h
Energy for 100 L400 Wh1,389 Wh
Power source12/24/48V DC or ACAC 240V
ConfigurationModularFramed
Membranes2 × 4×21in3 × 21in
Indicative price$9,600$8,642
Efficiency rank2 of 3026 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 Zen 100 if…

Your boat runs on solar and every watt-hour is spoken for, because this is the cheaper litre to make; you want tanks full in the shortest possible run, or you have a genset that is going to run anyway; you have no generator and no intention of fitting one.

Get a quote on the Zen 100

Buy the Frame AC 100L, manual if…

The purchase price matters more to you than the running cost.

Get a quote on the Frame AC 100L, manual

Common questions

Which is more efficient, the Zen 100 or the Frame AC 100L, manual?
The Zen 100, at 4.0 watt-hours per litre against 13.9. Over 100 litres a day that is a difference of about 989 Wh.
Which makes more water, the Zen 100 or the Frame AC 100L, manual?
The Zen 100, at 100 L/hr against 90. That is 1.1 times the output per hour running.
Which is cheaper?
On indicative pricing the Frame AC 100L, manual at $8,642, about $958 less than the other. Both figures exclude freight, duty and installation, and Australian dealer pricing normally reads higher.
More comparisons

Other pairs people cross-shop