
LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20)
Available to order — dispatched on the lead time shown below.
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Retail prices include VAT.
The LG CT18F.NQ0 compact 4-way ceiling cassette delivers 5.0kW (18,000 BTU) of ultra-efficient climate control, engineered specifically to fit into standard European 600x600mm suspended ceiling grids. Paired with the robust UUB1.U20 outdoor inverter condensing unit, this system provides 4-way independent vane air distribution, eliminating hot and cold spots across open-plan offices, boutique retail premises, and meeting spaces. Powered by energy-efficient R32 refrigerant, the unit achieves an impressive A++ seasonal efficiency rating while maintaining quiet indoor acoustics. Built-in condensate pump and optional LG ThinQ Wi-Fi smart control integration give building managers and property owners complete temperature oversight from a smartphone or voice assistants including Google Assistant and Amazon Alexa. Delivering powerful reverse-cycle heat pump warmth during winter and rapid cooling throughout summer, it represents a versatile, commercial-grade comfort solution for modern UK workplaces.
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 LG →Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with LG — ask us and we will send the cut sheet with mounting and clearance figures.
Description
The LG CT18F.NQ0 compact 4-way ceiling cassette delivers 5.0kW (18,000 BTU) of ultra-efficient climate control, engineered specifically to fit into standard European 600x600mm suspended ceiling grids. Paired with the robust UUB1.U20 outdoor inverter condensing unit, this system provides 4-way independent vane air distribution, eliminating hot and cold spots across open-plan offices, boutique retail premises, and meeting spaces. Powered by energy-efficient R32 refrigerant, the unit achieves an impressive A++ seasonal efficiency rating while maintaining quiet indoor acoustics. Built-in condensate pump and optional LG ThinQ Wi-Fi smart control integration give building managers and property owners complete temperature oversight from a smartphone or voice assistants including Google Assistant and Amazon Alexa. Delivering powerful reverse-cycle heat pump warmth during winter and rapid cooling throughout summer, it represents a versatile, commercial-grade comfort solution for modern UK workplaces.
Compare similar units
Side-by-side specs for other ceiling cassettes in a similar BTU range.
Common questions about the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20)
How many BTU is the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20)?
The LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) has a cooling capacity of 18,000 BTU, suitable for Up to 50m².
What room size is the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) suitable for?
The LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) is recommended for rooms Up to 50m².
Can I install the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) 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 LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) smart-home compatible?
Yes — the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the LG 5.0kW Compact 4-Way Ceiling Cassette System (CT18F.NQ0 / UUB1.U20) 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
146 kWh/yr
EER 13
Standard model
237 kWh/yr
EER 8
Est. saving
£24.65
91 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (18,000 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 6 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1175
This AC / season
£392
You save / season
£783
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1451 kWh | £392 | Up to 300% | |
| Plug-in electric heater | 4352 kWh | £1175 | 100% | |
| Electric storage heater | 4352 kWh | £1175 | 100% |
Heat output estimated from this unit's 19,800 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 £392/season to heat a room vs £1175 for an electric heater - that's £783 saved. https://stockool.store/products/lg-ct18f-nq0-5-0kw-compact-ceiling-cassette
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