Mermaid M6 – Cool Only Marine A/C Unit 6,500 BTU’s 110V

Not every boat wired for higher-voltage AC runs exactly 230V — some are built to the 220V standard instead, and the Mermaid M6 Cool & Reverse Cycle covers that case directly. Same 6,500 BTU capacity, same reverse cycle heating, same compact build suited to cruisers up to 27 feet or sailboats up to 30 feet, just tuned for a slightly different voltage input.

Why Choose the Mermaid M6 (220V)

This configuration exists specifically for boats wired to 220V rather than the more common US 230V or 110V standards, often on vessels built for or imported from markets outside the US. Electrically it performs identically to the 230V version at 7.5A running amperage — the voltage input is the real difference, not the cooling or heating performance.

Confirm your vessel is genuinely wired for 220V rather than 230V before ordering; the two are close but not always interchangeable depending on regional wiring conventions and the equipment already installed onboard.

What to Know Before Installing

• Confirm your electrical system’s actual voltage standard before ordering — 220V and 230V aren’t always interchangeable
• Pump is not included and must be sourced separately
• 4″ ducting with at least two 4″ round supply grilles is the minimum requirement
• Air discharge position must be specified at time of order