The iNHEAT 9kW Inverter Pro Heat Pump provides energy-efficient heating for hot tubs and small swim spas. Featuring full inverter technology, ultra-quiet performance and a COP of up to 13, it delivers powerful year-round heating while helping to reduce running costs.
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£1,999
| iNHEAT 9kW Inverter Pro — Technical Characteristics | ||
|---|---|---|
| Air 15°C Water 26°C Humidity 70% |
Heating Capacity | 1.6 ~ 6.7 kW |
| Power Input | 0.21 ~ 1.34 kW | |
| COP | 7.7 ~ 5.0 | |
| Air 26°C Water 26°C Humidity 80% |
Heating Capacity | 1.9 ~ 9.2 kW |
| Power Input | 0.13 ~ 1.28 kW | |
| COP | 14.71 ~ 6.24 | |
| Air 35°C Water 28°C Humidity 80% |
Cooling Capacity | 1.8 ~ 4.6 kW |
| Power Input | 0.28 ~ 1.20 kW | |
| EER | 7.46 ~ 4.47 | |
| Power Supply | 230V ~ / 50Hz (Single Phase) | |
| Max Current | 7.24 A | |
| Water Flow | 3–5 m³/h | |
| Refrigerant | R32 | |
| Pressure | 1.5 / 4.15 MPa | |
| Operating Air Temperature | -15 ~ 43 °C | |
| Compressor | Toshiba Rotary | |
| Waterproof Rating | IPX4 | |
| Unit Dimensions | 950 × 410 × 800 mm | |
| Package Dimensions | 860 × 330 × 668 mm | |
| Noise at 1m | 38.1 ~ 47.2 dB(A) | |
| Noise at 10m | 20.5 ~ 27.9 dB(A) | |
The iNHEAT 9kW Inverter Pro is a high-performance air source heat pump designed to heat hot tubs and swim spas more efficiently in UK conditions.
Using inverter technology, it adjusts output automatically to maintain a stable water temperature while helping reduce electricity use and running costs.

Automatically modulates output to maintain water temperature efficiently and help reduce running costs.

High efficiency performance (COP up to 14.71 in test conditions) for more economical heating.

Low noise levels designed for outdoor living spaces and UK gardens (38.1–47.2 dB(A) at 1m).

Designed to operate in colder weather with an operating air range of -15°C to 43°C.

Reliable Toshiba rotary compressor design for efficient, consistent performance.

Uses eco-friendly R32 refrigerant for modern efficiency and reduced environmental impact.

Space-saving design for easier placement (Unit: 950 × 410 × 800 mm).

IPX4 splash-resistant rating for outdoor installations and long-term use.
The iNHEAT 9kW Inverter Pro Heat Pump is a popular choice in our hot tubs range. As a leading UK supplier of hot tub heat pump, Oasis Outdoor Living offers expert advice, competitive pricing, and comprehensive after-sales support. Whether you are searching for the ideal hot tub heat pump for your home or garden, our team is on hand to help you choose the right model for your needs.
Choosing the right inheat 9kw inverter pro heat pump should be based on space, intended usage, and ownership goals. Our team helps you compare practical day-to-day factors such as comfort, access, maintenance expectations and long-term value, not just headline specs.
We support you from enquiry through to delivery planning and setup guidance. Where needed, we advise on base requirements, power preparation and practical placement so your new purchase is installed safely and performs as intended.
Consistent maintenance is essential for reliability, hygiene and long-term performance. For independent industry guidance, see BISHTA. Following best practice helps protect your investment and keeps performance stable through the seasons.
If you are still deciding, compare similar models in our related collection pages. This makes it easier to shortlist by size, features and budget before requesting a quote.
How quickly can this be delivered?
Delivery timelines vary by model and stock status. We provide accurate lead times when you enquire.
Can you help me choose the best fit?
Yes. We can recommend the most suitable option based on your space, usage and budget.
Do you offer aftercare support?
Yes. Our team provides ongoing support for setup, maintenance and ownership guidance.
Need tailored advice now? Contact us for a fast quote and a clear recommendation for iNHEAT 9kW Inverter Pro Heat Pump.
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