Low power draw
The Mark 3 runs on just 150 to 500 watts depending on the cooling mode and cabin temperature — easy on a boat's electrical system.
For boaters
Stay cool
on the water.
The Zero Breeze Mark 3 is a proper compressor air conditioner you can carry aboard — no installation, no through-hull fittings, no marine AC bill. Easy setup, low power draw.
Why boaters choose the Mark 3
Made for life aboard.
Flexible power
Runs on DC or AC, with or without shore power. Battery, inverter, generator or your boat's own system — whatever you have aboard.
Easy setup
No installation and no modifications. Drop it where you need cooling, run the hoses through a hatch or portlight — and that's it.
Quiet operation
Cools effectively and runs quietly — so you can actually sleep through the night at anchor.
Use it your way
Works with whatever power you have.
Whether you're sailing off-grid or prepping at the marina, the Mark 3 runs from your setup. If your system can deliver 600W of stable DC power, you're good to go.
- Zero Breeze batteries: 2–7 hours on one battery, up to 14 hours with two chained together.
- 48V DC system: Connects directly with the correct cable.
- Inverter or shore power: Plug in at the marina or run from an inverter on the hook.
- 12V / 24V systems: Works with a step-up converter and the proper cable.
Where does the hot air go?
Dual-hose, like a mini split.
The Mark 3 uses a dual-hose system — like a mini-split air conditioner, but all in one compact unit. One hose draws in outside air to cool the unit, the other pushes the hot air out.
Most boaters vent the hot air through a hatch, a side portlight, or into a vented anchor locker. Some place the unit outside and run the front hoses into the cabin — like adding an external AC to your space.
Cool where it matters
The spaces that heat up first.
The Mark 3 isn't built to cool your entire interior — and it doesn't need to be. It's made for the spaces that matter most when you're anchored and there's no breeze:
- V-berths
- Aft cabins
- Cockpits with the canvas zipped up
- Any small sleeping cabin
Official Zero Breeze distributor — Ireland & Europe
Cool your cabin this season.
Tell us about your boat and we'll recommend the right kit — battery setup, venting and delivery anywhere in Ireland or Europe.