Rinnai CSN140R 14.0kW High-Capacity Inverter Ceiling Cassette System
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Boasting a commanding 14.0kW thermal output, the Rinnai CSN140R is the flagship heavy-duty ceiling cassette split system engineered for large commercial properties, gyms, showrooms, and open workspaces. Its 360-degree broad-flow discharge pattern disperses conditioned air evenly across expansive layouts, minimising thermal stratification and hot spots. Built around DC inverter heat pump mechanics, the system offers high efficiency, reduced running noise, and precise modulating capacity. Integrated smart controls allow comprehensive schedule creation and remote access via Wi-Fi with Alexa and Google Home voice control capability. Complete with an internal high-head drain pump, washable high-density filtration, and a low-profile aesthetic fascia, the CSN140R gives UK commercial businesses robust, continuous environmental regulation combined with lower operational overheads.
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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
Boasting a commanding 14.0kW thermal output, the Rinnai CSN140R is the flagship heavy-duty ceiling cassette split system engineered for large commercial properties, gyms, showrooms, and open workspaces. Its 360-degree broad-flow discharge pattern disperses conditioned air evenly across expansive layouts, minimising thermal stratification and hot spots. Built around DC inverter heat pump mechanics, the system offers high efficiency, reduced running noise, and precise modulating capacity. Integrated smart controls allow comprehensive schedule creation and remote access via Wi-Fi with Alexa and Google Home voice control capability. Complete with an internal high-head drain pump, washable high-density filtration, and a low-profile aesthetic fascia, the CSN140R gives UK commercial businesses robust, continuous environmental regulation combined with lower operational overheads.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 15 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£3027
This AC / season
£1009
You save / season
£2018
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 3737 kWh | £1009 | Up to 300% | |
| Plug-in electric heater | 11210 kWh | £3027 | 100% | |
| Electric storage heater | 11210 kWh | £3027 | 100% |
Heat output estimated from this unit's 51,000 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 →