Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System
Available to order — dispatched on the lead time shown below.
Trade pricing available — apply or sign in for your trade rate
Retail prices include VAT.
The Rinnai CSN120R 12.0kW Inverter Ceiling Cassette represents high-capacity climate engineering built for larger public environments, conference halls, and busy hospitality dining spaces. Powered by an advanced inverter-driven outdoor compressor, it matches capacity seamlessly to immediate thermal demands, saving substantial energy while maintaining exact comfort standards. The flush-mount ceiling unit uses 360-degree radial air delivery to ensure thorough, uniform room temperature circulation. Integrated reverse-cycle technology provides rapid, powerful space heating during cold UK winters as well as swift cooling during high summer heat waves. Equipped with built-in Wi-Fi, the system is fully controllable via the dedicated smartphone app and connects smoothly to Amazon Alexa and Google Home for intuitive automation. Engineered for low acoustic impact, dependable service, and simplified trade installation.
Need it installed?
We'll match you with a local HVAC engineer.
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
Technical documents & videos
More from Rinnai →Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Rinnai — ask us and we will send the cut sheet with mounting and clearance figures.
Description
The Rinnai CSN120R 12.0kW Inverter Ceiling Cassette represents high-capacity climate engineering built for larger public environments, conference halls, and busy hospitality dining spaces. Powered by an advanced inverter-driven outdoor compressor, it matches capacity seamlessly to immediate thermal demands, saving substantial energy while maintaining exact comfort standards. The flush-mount ceiling unit uses 360-degree radial air delivery to ensure thorough, uniform room temperature circulation. Integrated reverse-cycle technology provides rapid, powerful space heating during cold UK winters as well as swift cooling during high summer heat waves. Equipped with built-in Wi-Fi, the system is fully controllable via the dedicated smartphone app and connects smoothly to Amazon Alexa and Google Home for intuitive automation. Engineered for low acoustic impact, dependable service, and simplified trade installation.
Compare similar units
Side-by-side specs for other ceiling cassettes in a similar BTU range.
Common questions about the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System
How many BTU is the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System?
The Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System has a cooling capacity of 41,000 BTU, suitable for Up to 90m².
What room size is the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System suitable for?
The Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System is recommended for rooms Up to 90m².
Can I install the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System myself?
No — this unit requires professional installation by a qualified F-gas engineer. Use our Find an Installer service to get matched with a local HVAC professional.
Is the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System smart-home compatible?
Yes — the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the Rinnai CSN120R 12.0kW Inverter Ceiling Cassette Heat Pump System take?
This unit is dispatched in 2-3 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.
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Mitsubishi ElectricAnnual energy savings estimate
How much this A+-rated unit could save versus a standard C-rated model, based on your usage.
This unit
393 kWh/yr
EER 11
Standard model
541 kWh/yr
EER 8
Est. saving
£39.82
147 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (41,000 BTU). Actual savings vary with room size, climate and usage patterns.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 13 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£2629
This AC / season
£876
You save / season
£1753
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 3246 kWh | £876 | Up to 300% | |
| Plug-in electric heater | 9738 kWh | £2629 | 100% | |
| Electric storage heater | 9738 kWh | £2629 | 100% |
Heat output estimated from this unit's 44,300 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 →
Share your savings
This heat-pump AC costs only £876/season to heat a room vs £2629 for an electric heater - that's £1753 saved. https://stockool.store/products/rinnai-csn120r-12-0kw-inverter-ceiling-cassette-heat-pump-system
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