Rinnai PX Series 5.0kW Inverter Reverse Cycle Split System
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The Rinnai PX Series 5.0kW Inverter Reverse Cycle Split System provides dependable cooling and high-output heating for open-concept UK residential layouts, garden studios, and commercial spaces up to 40m². Delivering 17,000 BTU cooling and 18,000 BTU heating, this system guarantees swift thermal response through intelligent 3D airflow distribution that banishes cold drafts and hot spots. Built-in Wi-Fi compatibility enables effortless app-based scheduling and integration with smart voice platforms including Google Home and Amazon Alexa. Engineered with R32 refrigerant, long-lasting GoldGuard heat exchanger fin protection, and multi-stage filtration to eliminate airborne dust and allergens, this unit combines premium air quality with robust longevity. An essential heating and cooling upgrade requiring certified F-Gas installation.
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Smart-home ready
Connects natively with the systems below — control by app or voice.
- Free UK mainland delivery on in-stock units
- Manufacturer warranty included
- 14-day returns
Full Specifications
Description
The Rinnai PX Series 5.0kW Inverter Reverse Cycle Split System provides dependable cooling and high-output heating for open-concept UK residential layouts, garden studios, and commercial spaces up to 40m². Delivering 17,000 BTU cooling and 18,000 BTU heating, this system guarantees swift thermal response through intelligent 3D airflow distribution that banishes cold drafts and hot spots. Built-in Wi-Fi compatibility enables effortless app-based scheduling and integration with smart voice platforms including Google Home and Amazon Alexa. Engineered with R32 refrigerant, long-lasting GoldGuard heat exchanger fin protection, and multi-stage filtration to eliminate airborne dust and allergens, this unit combines premium air quality with robust longevity. An essential heating and cooling upgrade requiring certified F-Gas installation.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 5 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1068
This AC / season
£356
You save / season
£712
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1319 kWh | £356 | Up to 300% | |
| Plug-in electric heater | 3957 kWh | £1068 | 100% | |
| Electric storage heater | 3957 kWh | £1068 | 100% |
Heat output estimated from this unit's 18,000 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →