Mermaid M9 Cool & Electric Heat Unit - 9,000 BTU's - 110V

Mermaid M9 Cool & Electric Heat Unit - 9,000 BTU's - 110V

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Mermaid M9 Cool & Electric Heat Unit - 9,000 BTU's - 110V

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Mermaid M9 Cool and Electric Heat Unit - 9,000 BTU's - 110V. With a cooling capacity of 800 cubic ft, the Mermaid 9,000 BTU unit is designed to cool / heat up to a 30′ cruiser or a 32′ sailboat. The ultimate in climate control, this unit packs the perfect punch of cool, comfortable air to keep your cabin temperate. M9EH110. Includes digital thermostat, insulation mounting pad, and air output collar.

Built to Order - 3 to 5 Business Day Lead Time. 5-Year Limited Warranty. Free US Shipping!



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Mermaid M9 Cool & Electric Heat Unit - 9,000 BTU's - 110V 

Mermaid M9 Cool & Electric Heat Unit - 9,000 BTUs - 110V

With a cooling capacity of 800 cubic feet, the Mermaid 9,000 BTU unit is designed to cool / heat up to a 30′ cruiser or a 32′ sailboat.

The smallest 9,000 BTU on the market; it is almost the same size as the Mermaid M6 unit. In order to keep the smallest footprint on the market, Mermaid utilizes the same stainless steel base as the Mermaid M6 (6500 BTU) unit. This unit will run off of a Honda 2000 generator. This unit is available in right, left, or top air discharge configurations. Mermaid uses a 6″ and 4″ ducting and recommend a minimum of three 4″ round supply grills with this installation.

All M9 models include a digital thermostat, an insulation mounting pad, and an air output collar. Pump not included.

With Electric Heating Function 

When the electric heating feature is activated on your Mermaid A/C unit, a radiant heat strip placed in the evaporator shroud heats up and the fan blows 5,680 BTUs of hot air into the cabin. Neither the compressor nor the water pump is required for this. This means the electric heating feature can be run even while the boat is out of the water.

Take note though, electric heat mode draws more power than reverse cycle heating (10 extra amps).

Digital Control/Thermostat Options (Included w/Unit) - Select Programmable or Non-Programmable 

Programmable Thermostat
Mermaid Programmable ThermostatMermaid Digital Thermostat

Mermaid’s standard Digital Programmable Thermostat. Designed to be used with any Mermaid unit. 

Programmable features allow for weekday and weekend setting for those boater’s who care to use the unit for dehumidification or simply climate control while not on board. The thermostat is also accompanied with 20 feet of four-wire thermostat cable and installation instructions.

Dimensions: 4 1/2″ length x 1 1/4″ width x 3 1/4″ height

Non-Programmable Thermostat
Mermaid Non-Programmable Thermostat

As an alternative to the standard Digital Programmable Thermostat, Mermaid offers a simple Non-Programmable Thermostat that can be mounted vertically or horizontally. It is ideal for applications where programming features will not be necessary.

Simply turn the unit to HEAT or COOL, set the fan to AUTO (comes on with the unit) or ON (continuous duty), and set your desired temperature – and that's it! The thermostat will now maintain that set temperature until you turn it off or change the temperature. Again, this item is ideal for folks looking for a simple controller and a slimmer wall mount design. This can be a FREE alternative to your Programmable Thermosat upon purchase of any Mermaid Air System. 

Dimensions: 4 5/8″ length x 7/8″ width x 3 1/4″ height

Technical Specifications

Model M9
Cooling Capacity 9,000 BTU's
Voltage  110V
Running Amperage 7.0 A
Electric Heat 18.5
Unit Length 16 inches
Unit Width  11.5 inches
Unit Height  12 inches

Mermaid M9 Marine A/c

Mermaid Manufacturing - Top of the Line Marine Air Conditioning, Backed By 5-Year Warranty

Mermaid Manufacturing is so committed to delivering quality that they make all of their A/C units by hand. Every unit is constructed of quality components assembled on solid stainless steel bases right here in the United States.

Mermaid has the right system for marine vessels ranging from the smallest cabin cruiser to a 75′ sailing yacht, selling between 900 - 1200 marine A/C units to happy customers each year. Every unit comes with a 5-year warranty against material defects and workmanship. For more details on the guarantee see downloads section below.