Mermaid M16 – Cool and Reverse Cycle Unit 16,500 BTU’s 230V

The Mermaid M16 Cool and Reverse Cycle unit sits between the compact M12 and the large-vessel M24, delivering 16,500 BTU of cooling and heating on 230V power for cruisers up to 40 feet or sailboats up to 45 feet — built on the same high-grade stainless steel construction found across Mermaid’s larger units.

Why Choose the Mermaid M16

This sits in a useful middle ground — more capacity than the 12,000 BTU class without stepping up to the M24’s larger footprint and 220V-only requirement. The heavier 304-18 gauge stainless construction is a specific upgrade over Mermaid’s smaller units, worth noting if long-term corrosion resistance in harsh saltwater conditions is a priority.

Ducting on this unit is more involved than smaller Mermaid models — Mermaid specifically recommends three separate discharge points rather than the two typical on 6,000-9,000 BTU units, which is worth factoring into your installation planning.

What to Know Before Installing

• Pump is not included and must be sourced separately
• Plan for three discharge points: one 8″x6″ grill within 6 feet of the unit, plus two 4″ round vents elsewhere
• All three air discharge positions (right, left, top) are available on this model, unlike the M24’s right/top-only configuration
• Confirm your boat’s electrical panel supports 230V before ordering