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Aquark Mr Silence Hot Tub & Swim Spa Air Source Inverter Heat Pump 9kW

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£1,999.00 £2,229.00
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Aquark Mr Silence Hot Tub & Swim Spa Air Source Heat Pump 9kW

Experience tranquillity alongside Mr Silence. Leveraging innovative airstream design technology, this device operates with a noise level comparable to a refrigerator. As the spa season commences, Mr Silence works at maximum capacity to swiftly warm up your spa. As the temperature approaches the desired setting, Mr Silence seamlessly transitions to a lower speed, ensuring both energy efficiency and reduced noise. At this lower speed, the Coefficient of Performance (COP) reaches an impressive 16.

Product Specifications

Specification Value
Operating Air Temperature -10°C to 43°C*
Heating Capacity (27°C air, 27°C water, 80% humidity) 9.0 kW
Coefficient of Performance (COP) Range 14.0 to 7.1
Average COP at 50% Speed 10.4
Heating Capacity (15°C air, 26°C water, 70% humidity) 6.5 kW
Coefficient of Performance (COP) Range 7.3 to 4.7
Average COP at 50% Speed 6.4
Advised Pool Volume 20 to 45 m³
Power Supply 230V/1Ph
Dimensions (LxWxH) 890 x 430 x 657 mm
Weight 55 kg
Compressor Twin-rotary Mitsubishi DC Compressor
Heat Exchanger Twisted Titanium Heat Exchanger
Noise 36.5 dB(A) - 46 dB(A)


  • Easily adjust using the control panel, or if you prefer via the mobile app
  • *The colder the ambient temperature and below 15°C, the longer it will take to heat up to your ideal working temperature.

How Does it Work?

A heat pump operates similarly to an air conditioner but with an opposite function. Essentially, it draws air from the surroundings, extracts the heat, and transfers it to the water circulating through the pump.

How does an air source heat pump work?

Technically speaking, a heat pump propels refrigerant through copper heat exchanger coils. The compressor and condenser collaborate to alter the refrigerant's state from a cool liquid to a warm gas.


When in heating mode, the refrigerant boils as it flows through the coils, retaining any heat it carries until evaporation occurs. Subsequently, the gas undergoes compression, raising its temperature. The gas then passes through a pressure valve, which reverts it to a liquid state and simultaneously transfers the heat to the element.



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