Devola 18000 BTU Inverter Split System Air Conditioner
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The Devola 18000 BTU Inverter Split System is the ultimate cooling and heating solution for expansive residential or commercial spaces. Designed to handle larger volumes of air with ease, this unit provides rapid temperature adjustment while maintaining exceptional energy efficiency through its advanced inverter technology. Whether you are looking to combat intense summer heat or provide supplemental heating during the colder months, this system delivers consistent, powerful performance. The unit includes smart Wi-Fi integration, giving you full control over your climate settings via your smartphone or voice-activated assistants. Its robust construction and quiet operation make it ideal for large open-plan offices, spacious living rooms, or retail environments. This system requires professional installation by a certified technician to ensure the refrigerant lines are correctly sealed and the system is commissioned for optimal performance. Invest in long-term comfort and efficiency with Devola's most powerful split system model.
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 Devola →Official Devola 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 Devola — ask us and we will send the cut sheet with mounting and clearance figures.
Description
The Devola 18000 BTU Inverter Split System is the ultimate cooling and heating solution for expansive residential or commercial spaces. Designed to handle larger volumes of air with ease, this unit provides rapid temperature adjustment while maintaining exceptional energy efficiency through its advanced inverter technology. Whether you are looking to combat intense summer heat or provide supplemental heating during the colder months, this system delivers consistent, powerful performance. The unit includes smart Wi-Fi integration, giving you full control over your climate settings via your smartphone or voice-activated assistants. Its robust construction and quiet operation make it ideal for large open-plan offices, spacious living rooms, or retail environments. This system requires professional installation by a certified technician to ensure the refrigerant lines are correctly sealed and the system is commissioned for optimal performance. Invest in long-term comfort and efficiency with Devola's most powerful split system model.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Devola 18000 BTU Inverter Split System Air Conditioner
How many BTU is the Devola 18000 BTU Inverter Split System Air Conditioner?
The Devola 18000 BTU Inverter Split System Air Conditioner has a cooling capacity of 18,000 BTU, suitable for Up to 50m².
What room size is the Devola 18000 BTU Inverter Split System Air Conditioner suitable for?
The Devola 18000 BTU Inverter Split System Air Conditioner is recommended for rooms Up to 50m².
Can I install the Devola 18000 BTU Inverter Split System Air Conditioner 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 Devola 18000 BTU Inverter Split System Air Conditioner smart-home compatible?
Yes — the Devola 18000 BTU Inverter Split System Air Conditioner supports Amazon Alexa, Google Home, Tuya/SmartLife for app and voice control.
How long does delivery of the Devola 18000 BTU Inverter Split System Air Conditioner take?
This unit is dispatched in 5-7 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
173 kWh/yr
EER 11
Standard model
237 kWh/yr
EER 8
Est. saving
£17.48
65 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
£1128
This AC / season
£376
You save / season
£752
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1392 kWh | £376 | Up to 300% | |
| Plug-in electric heater | 4176 kWh | £1128 | 100% | |
| Electric storage heater | 4176 kWh | £1128 | 100% |
Heat output estimated from this unit's 19,000 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 £376/season to heat a room vs £1128 for an electric heater - that's £752 saved. https://stockool.store/products/devola-18000-btu-inverter-split-system
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