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Mermaid M16 – Cool and Reverse Cycle Unit 16,500 BTU’s 230V
Mermaid M16 delivers 16,500 BTU cooling and reverse-cycle operation through 230V power for medium-sized marine cabin installations.
- 16,500 BTU capacity suits medium spaces.
- 230V input supports listed electrical systems.
- Reverse cycle enables heating capability.
- Dual-mode operation supports seasonal use.
- Marine unit manages onboard temperatures.
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Description
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.
Key Features of the Mermaid M16 (230V, Reverse Cycle)
- Reverse cycle heating produces 10-15% more BTU output in heat mode than the unit’s rated cooling capacity
- Constructed on 304-18 gauge stainless steel, a heavier-duty material spec than Mermaid’s smaller M6/M9 units
- Soft start technology and variable speed blower reduce startup strain and improve comfort control
- Mechanical freeze protection and dual drain locations simplify long-term maintenance
- Available in right, left, or top air discharge configurations
Mermaid M16 Technical Specifications (230V, Reverse Cycle)
- Model: M16 (Cool & Reverse Cycle)
- Cooling Capacity: 16,500 BTU
- Voltage: 230V
- Running Amperage: 13.5 A
- Cooling Capacity (Volume): 1,400 cubic feet
- Recommended Boat Size: up to 40′ cruiser or 45′ sailboat
- Unit Dimensions (L x W x H): 19.75″ x 13.5″ x 13.75″
- Ducting: minimum three discharges recommended — one 8″x6″ grill within 6 feet of the unit, plus two 4″ round supply vents
- Warranty: 5 years against material defects and workmanship
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
| Brand | Mermaid Marine Air |
| Exact Model Code / SKU | M16 (230V Variant) |
| Country of Origin | USA |
| System Architecture | Self-Contained Marine A/C System |
| Cooling Capacity - BTU/h | 16,500 BTU/h |
| Cooling Capacity - kW/Watts | 4.84 kW |
| Heating Capacity - BTU/h | 18,000 BTU/h |
| Reverse Cycle Heating Function | Yes |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 5.6 A |
| Full Load Amps - FLA Heating | 6.5 A |
| Locked Rotor Amps - LRA | 26 A |
| Max Circuit Breaker Size | 20 A |
| Refrigerant Type | R-410A |
| Compressor Type | Hermetic Rotary |
| Seawater Water Flow Rate | 6.66 GPM (400 GPH) |
| Seawater Inlet Pipe Size | 5/8 inch (16 mm) |
| Seawater Outlet Pipe Size | 5/8 inch (16 mm) |
| Evaporator Airflow Capacity | 490 CFM |
| Duct Discharge Connection Diameter | 6 inches (152 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 13.0 x 20.0 x 13.5 inches (330 x 508 x 343 mm) |
| Net Weight | 66 lbs (29.9 kg) |
| Chassis & Condenser Material | Stainless Steel Pan & Cupronickel Condenser Loop |
| Standard Factory Warranty | 5 Years |
| Application & Sizing Guidance | Engineered to seamlessly align with standard European shore power grids or high-voltage cruising gensets; handles open salons up to 800 cu.ft, min generator 3.5 kW. |
What's in the Box
- 1x Mermaid M16 16,500 BTU Self-Contained Marine Air Conditioner Unit (230V - Cool & Reverse Cycle)
- 1x High-Performance Reverse Cycle Heating System
- 1x Heavy-Duty Cupronickel Condenser Tube-in-Tube Heat Exchanger
- 1x High-Velocity Centrifugal Blower Assembly
- 1x Marine-Grade Condensate Drain Pan Base Assembly
- 1x Mechanical/Digital Thermostat Interface Terminal Block
- 1x Removable and Washable Composite Air Filter
- 1x Operation Manual and Detailed Installation Guide
Mermaid M16 Reverse Cycle 230V FAQ
What voltage rating does this system use?
Mermaid M16 utilizes a standard 230V electrical feed. This international single-phase layout fits global shore networks and heavy-duty yacht generator circuits, permitting vessels to run full reverse-cycle climate control without loading lower-voltage ship service lines unevenly or tripping main breakers at foreign marinas.
What are the physical dimensions of M16?
Mermaid M16 features a footprint of 19.75x13x13.75 inches. These square chassis proportions grant installation engineers clean placement flexibility, allowing a direct drop-in mount beneath lower salon booths or inside engine room compartments where vertical room can comfortably accept standard-height machinery setups.
When is Mermaid M16 best applied?
Mermaid M16 is best applied as a primary climate controller for offshore sportfishers. The system handles main salons or large master staterooms on vessels from thirty-five to forty-five feet, utilizing its heavy-duty reverse-cycle heat pump assembly to maintain custom interior warmth during cold-weather winter fishing trips.
| Hardware Element | Verified Metric |
|---|---|
| Total Capacity | 16,500 BTU |
| Net Weight | 64 lbs |
| Duct Fitting | 5 inches |
| Heat Exchanger | Cupronickel |
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