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Mermaid M16 – Cool and Reverse Cycle Unit 16,500 BTU’s 110V
Mermaid M16 pairs 16,500 BTU cool and reverse-cycle operation with 110V power for onboard marine climate management.
- 16,500 BTU capacity targets medium spaces.
- 110V supply matches listed installations.
- Reverse cycle adds heating functionality.
- Cooling and heating use one system.
- Marine A/C supports seasonal operation.
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Description
Standard 110V power remains the norm on most US boats, and the Mermaid M16 Cool and Reverse Cycle in 110V trim delivers 16,500 BTU of cooling and heating without asking for a voltage step-up — sized for cruisers up to 40 feet or sailboats up to 45 feet. One verified owner review specifically praised the ice-cold cooling and efficient heat side performance after replacing an aging 2008 R22 unit.
Key Features of the Mermaid M16 (110V, 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 spec than Mermaid’s smaller M6/M9 units
- Soft start technology and variable speed blower reduce startup strain
- Mechanical freeze protection and dual drain locations simplify long-term maintenance
- Available in right, left, or top air discharge configurations
Mermaid M16 Technical Specifications (110V, Reverse Cycle)
- Model: M16 (Cool & Reverse Cycle)
- Cooling Capacity: 16,500 BTU
- Voltage: 110V
- 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 — 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 (110V)
Real-world feedback on this unit is notably positive: one documented review described replacing a failed 2008 R22 unit and finding the newer R32 refrigerant charge “hyper efficient,” cycling faster than both the old unit and comparable Dometic models a neighbor had installed. The same review also noted responsive customer support when a fan component failed under warranty.
A second review flagged the included thermostat’s programming as more complex than needed for owners who just want simple on/off cool or heat control — worth knowing going in if you prefer straightforward controls over extensive scheduling options.
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
- The included thermostat has extensive programming options — budget time to learn the interface, or expect a short learning curve per owner feedback
- Confirm your boat’s electrical panel supports the 13.5A draw at 110V
| Brand | Mermaid Marine Air |
| Exact Model Code / SKU | M16 (110V 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 | 110V |
| Alternating Current Frequency | 60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 11.8 A |
| Full Load Amps - FLA Heating | 13.6 A |
| Locked Rotor Amps - LRA | 54 A |
| Max Circuit Breaker Size | 30 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 | High-output self-contained build optimal for main salon or multi-berth configurations up to 800 cu.ft; requires a minimum 400 GPH pump run and a 4.0 kW generator. |
What's in the Box
- 1x Mermaid M16 16,500 BTU Self-Contained Marine Air Conditioner Unit (110V - 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 110V FAQ
How much cooling does this unit provide?
Mermaid M16 provides a total of 16,500 BTU cooling. This self-contained setup is configured with a heavy-duty reversing valve to switch automatically into heat mode, compressing eco-friendly gas lines to keep small fishing vessels warm during freezing late-season offshore angling operations.
What is the weight of this unit?
Mermaid M16 features an exact weight of 64 lbs. This balanced build includes a marine-grade composite condensate collector pan assembly to prevent dangerous bilge water accumulation and rust pooling without adding extreme ballast loads near the vessel waterline.
Where is Mermaid M16 applied onboard?
Mermaid M16 is ideal for main salons and wide mid-ship master cabins. It delivers premium environmental control for express cruisers and commercial hulls lacking high-voltage utility lines, fitting effortlessly beneath shallow booth dinettes where its standard height profile avoids encroaching on valuable cabin headroom.
| Product Metric | Official Value |
|---|---|
| Voltage Circuit | 110V 60Hz |
| Amps Cooling | 12.5 Amps |
| Blower Style | Rotatable Turbo |
| Duct Rings | 5 inches |
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