Petrol watermakers
No electrical draw at all: a small petrol engine drives the pump. Budget roughly 700 ml of fuel per hour. Popular as a portable unit that lives in a locker between uses.
Highest outputRainman Portable Petrol 140L
Lowest indicative priceRainman Portable Petrol 75L
| System | Power | Output L/hr | Draw W | Wh per litre | Price |
|---|---|---|---|---|---|
| Portable Petrol 140L Rainman | Petrol | 100–154 | — | petrol | $6,731 |
| Portable Petrol 75L Rainman | Petrol | 55–82 | — | petrol | $5,804 |
| Portable Petrol 70L Rainman | Petrol | 50–77 | — | petrol | $6,699 |
Under 6 Wh/L · energy recovery
6–12 Wh/L
Over 12 Wh/L
Common questions
- How many Petrol watermakers are sold in Australia?
- We currently table 3 Petrol systems. The list grows as we verify more brands.
- What size Petrol watermaker do I need?
- Start from daily litres, not boat length. Four people at 25 litres a head is 100 litres a day. Divide by a candidate's rated output for run time, and multiply by its Wh per litre for the energy it takes out of your day. Our sizing calculator does both against your own battery bank.
- How much fuel does a petrol watermaker use?
- Budget roughly 700 ml an hour. The trade is that it takes nothing from the house bank, which is why petrol units suit boats with small electrical systems.
Other power sources