Mermaid M6 – Cool & Electric Heat Marine A/C Unit 6,500 BTU’s 110V
Mermaid M6 supplies 6,500 BTU cool and electric heat through 110V power for compact marine cabin climate systems.
- 6,500 BTU capacity suits compact cabins.
- 110V input matches listed installations.
- Electric heat adds heating capability.
- Cooling and heating share one unit.
- Marine A/C supports seasonal climate control.
$1,866.15
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Some boat owners want heat that doesn’t depend on the compressor at all, and the Mermaid M6 Cool & Electric Heat in 110V trim covers that case — 6,500 BTU of standard cooling, plus an electric heat strip that runs independently of the refrigeration system, useful for heating the cabin even when the boat is hauled out of the water.
Why Choose the Mermaid M6 Electric Heat
Electric heat mode pulls significantly more current than the unit’s cooling mode — 17.5A versus 6.4A — which matters on boats with limited generator or shore power capacity. Confirm your electrical panel can handle that draw before choosing this configuration over reverse cycle, which typically runs more efficiently but can’t operate independent of the compressor and seawater system.
For boats that already have reliable water flow and want a more energy-efficient heating option, the Reverse Cycle version of the M6 is generally the better fit — electric heat trades some efficiency for the ability to run without refrigeration engaged.
What to Know Before Installing
- Confirm your electrical system can handle the 17.5A draw during electric heat operation
- Ducting and pump requirements match the standard M6 platform — pump not included
- This configuration is 110V only, based on the data reviewed
- Air discharge position must be specified before ordering
Product Specifications
Product Specifications
| Brand | Mermaid Marine Air |
|---|---|
| Exact Model Code / SKU | M6 (110V Electric Heat Variant) |
| Country of Origin | USA |
| System Architecture | Self-Contained Marine A/C System |
| Cooling Capacity - BTU/h | 6,500 BTU/h |
| Cooling Capacity - kW/Watts | 1.90 kW |
| Heating Capacity - BTU/h | 3,412 BTU/h (1.0 kW Electric Resistance Heating Strip Built-in) |
| Reverse Cycle Heating Function | No (Uses constant resistance heat staging to perform in cold freshwater areas) |
| Electrical Voltage | 110V |
| Alternating Current Frequency | 60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 5.8 A |
| Full Load Amps - FLA Heating | 10.2 A (Active Heat Component Current Draw Peak) |
| Locked Rotor Amps - LRA | 24 A |
| Max Circuit Breaker Size | 15 A |
| Refrigerant Type | R-410A |
| Compressor Type | Hermetic Rotary |
| Seawater Water Flow Rate | 3.33 GPM (200 GPH) |
| Seawater Inlet Pipe Size | 5/8 inch (16 mm) |
| Seawater Outlet Pipe Size | 5/8 inch (16 mm) |
| Evaporator Airflow Capacity | 250 CFM |
| Duct Discharge Connection Diameter | 4 inches (102 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 11.5 x 14.0 x 11.5 inches (292 x 356 x 292 mm) |
| Net Weight | 49 lbs (22.2 kg) |
| Chassis & Condenser Material | Stainless Steel Pan & Cupronickel Condenser Loop |
| Standard Factory Warranty | 5 Years |
| Application & Sizing Guidance | Small-tier boat stateroom configuration specialized for high latitudes where extreme water chill breaks down reverse-cycle heat lines; fits layouts up to 250 cu.ft, min generator 2.0 kW. |
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