LG 3.4kW Compact 4-Way Ceiling Cassette
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The LG 3.4kW Compact 4-Way Ceiling Cassette is an ideal climate control solution for small to medium-sized commercial spaces, such as offices, retail shops, or meeting rooms. Designed to fit seamlessly into standard 600mm x 600mm ceiling grids, this unit offers a discreet, space-saving installation that maintains the aesthetic integrity of your interior. Featuring advanced R32 refrigerant technology, it delivers highly efficient cooling and heating performance while reducing environmental impact. The unit provides 4-way airflow, ensuring even temperature distribution throughout the room, and operates with a low sound pressure level of 35dBA, making it perfect for environments where quiet operation is essential. With its robust build quality and reliable performance, this cassette system is a professional-grade choice for year-round comfort. Please note that this system requires professional installation by an F-Gas certified engineer to ensure optimal performance and safety.
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 →Official LG manual
The manufacturer's PDF for this model is being sourced and will be downloadable here.
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 3.4kW Compact 4-Way Ceiling Cassette is an ideal climate control solution for small to medium-sized commercial spaces, such as offices, retail shops, or meeting rooms. Designed to fit seamlessly into standard 600mm x 600mm ceiling grids, this unit offers a discreet, space-saving installation that maintains the aesthetic integrity of your interior. Featuring advanced R32 refrigerant technology, it delivers highly efficient cooling and heating performance while reducing environmental impact. The unit provides 4-way airflow, ensuring even temperature distribution throughout the room, and operates with a low sound pressure level of 35dBA, making it perfect for environments where quiet operation is essential. With its robust build quality and reliable performance, this cassette system is a professional-grade choice for year-round comfort. Please note that this system requires professional installation by an F-Gas certified engineer to ensure optimal performance and safety.
Compare similar units
Side-by-side specs for other ceiling cassettes in a similar BTU range.
Common questions about the LG 3.4kW Compact 4-Way Ceiling Cassette
How many BTU is the LG 3.4kW Compact 4-Way Ceiling Cassette?
The LG 3.4kW Compact 4-Way Ceiling Cassette has a cooling capacity of 12,000 BTU, suitable for Up to 35m².
What room size is the LG 3.4kW Compact 4-Way Ceiling Cassette suitable for?
The LG 3.4kW Compact 4-Way Ceiling Cassette is recommended for rooms Up to 35m².
Can I install the LG 3.4kW Compact 4-Way Ceiling Cassette 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 3.4kW Compact 4-Way Ceiling Cassette smart-home compatible?
Yes — the LG 3.4kW Compact 4-Way Ceiling Cassette supports Google Home, Amazon Alexa for app and voice control.
How long does delivery of the LG 3.4kW Compact 4-Way Ceiling Cassette 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
97 kWh/yr
EER 13
Standard model
158 kWh/yr
EER 8
Est. saving
£16.44
61 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (12,000 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 4 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£772
This AC / season
£257
You save / season
£514
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 953 kWh | £257 | Up to 300% | |
| Plug-in electric heater | 2858 kWh | £772 | 100% | |
| Electric storage heater | 2858 kWh | £772 | 100% |
Heat output estimated from this unit's 13,000 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 →
Share your savings
This heat-pump AC costs only £257/season to heat a room vs £772 for an electric heater - that's £514 saved. https://stockool.store/products/lg-3-4kw-compact-4-way-ceiling-cassette
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