Mermaid M12 – Cool & Reverse Cycle Marine A/C Unit 12,000 BTU’s 230V

Description

For boats in the 32 to 34-foot range that want the option of onboard heating alongside cooling, the Mermaid M12 Cool and Reverse Cycle delivers 12,000 BTU of both from a compact, hand-built unit — sized specifically for cruisers up to 32 feet or sailboats up to 34 feet.

Key Features of the Mermaid M12 (Reverse Cycle)

• Reverse cycle heating produces 10-15% more BTU output in heat mode than the unit’s rated cooling capacity
• V-shaped blower housing simplifies odd-angle discharge installations
• Electrical box weighs just 4.7 lbs, part of Mermaid’s compact engineering approach across the M12 line
• Soft start technology and variable speed blower reduce startup strain
• Runs off a Honda EU1000i 1,000-watt portable generator in cool mode

Mermaid M12 Technical Specifications (Reverse Cycle)

• Model: M12 (Cool & Reverse Cycle)
• Cooling Capacity: 12,000 BTU
• Voltage: approximately 220-230V (the manufacturer’s published spec table for this listing shows 220V/11.44A despite the product being titled “230V” — this appears to be a data inconsistency on the retailer’s spec sheet; confirm the exact voltage and amperage directly with Mermaid or a dealer before finalizing electrical planning)
• Cooling Capacity (Volume): 1,000 cubic feet
• Recommended Boat Size: up to 32′ cruiser or 34′ sailboat
• Unit Dimensions (L x W x H): 19.75″ x 13″ x 13.75″
• Ducting: 4″, minimum two 4″ round supply grilles recommended
• Warranty: 5 years against material defects and workmanship

Why Choose the Mermaid M12 Reverse Cycle

One unit handling both cooling and heating simplifies wiring and reduces the number of onboard systems to maintain, compared to pairing a cool-only AC with a separate heat source. An alternative anchoring setup exists too — a Statpower 1,800-watt pure sine wave inverter with 450 amp-hours of battery can typically run this unit off-grid for about one night.

Before ordering, it’s worth confirming the exact voltage specification directly with Mermaid given the inconsistency noted above between this listing’s title and its published spec table — an easy phone or email confirmation that avoids any mismatch with your boat’s electrical system.

What to Know Before Installing

• Confirm exact voltage and amperage specifications directly with Mermaid or a dealer before finalizing your electrical plan, due to a data inconsistency in the published spec sheet for this listing
• Pump is not included and must be sourced separately
• 4″ ducting with at least two 4″ round supply grilles is the minimum Mermaid recommends
• Air discharge position must be selected before ordering