Stockool is the UK's air conditioning specialist — in stock when nowhere else is. Shop retail AC units, trade pricing, self-install kits, or get matched with a local installer, all backed by real-time availability.

Devola 12000 BTU Inverter Split System Air Conditioner

In StockEnergy A++

£790.00£800.00Save £10.00

Trade pricing available — apply or sign in for your trade rate

Dispatched in 3-5 working days

UK-Wide Delivery

Free UK mainland delivery on in-stock units

Retail prices include VAT.

Upgrade your home comfort with the Devola 12000 BTU Inverter Split System, engineered for larger spaces requiring consistent and efficient climate control. This high-performance unit excels in both cooling and heating, making it an essential addition for UK properties that experience fluctuating seasonal temperatures. The inverter compressor adjusts its speed to maintain your desired temperature, preventing the energy spikes associated with traditional units and ensuring a quieter, more stable environment. Its smart features enable remote control via Wi-Fi, allowing you to pre-cool or pre-heat your space before you arrive home. Perfect for larger lounges, open-plan living areas, or master bedrooms, this unit combines aesthetic appeal with industrial-grade reliability. As a split system, it requires professional installation to connect the indoor and outdoor units correctly. Experience the perfect balance of power, efficiency, and smart technology with Devola's flagship split system range.

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.

Smart guide

Amazon AlexaGoogle HomeTuya / SmartLife

Free UK mainland delivery on in-stock units
Manufacturer warranty included
14-day returns

Cooling Capacity

12,000 BTU

Energy Rating

A++

Recommended Room

Up to 35m²

Technical documents & videos

Official Devola manual

The manufacturer's PDF for this model is being sourced and will be downloadable here.

All Devola catalogues and rangesMissing a document? Ask our team and we will send it over.

Full Specifications

Cooling Capacity12,000 BTU

Recommended Room SizeUp to 35m²

Energy RatingA++

Smart HomeAmazon Alexa, Google Home, Tuya/SmartLife

Noise Level—

CategorySplit System AC

SKUDVSS12-HP-NEW

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

Compare similar units

Side-by-side specs for other split system ac in a similar BTU range.

This Unit

Devola

Devola 12000 BTU Inverter Split System Air Conditioner

Samsung

Samsung 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Midea

Midea Comfee 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

TCL

TCL 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Cooling Capacity

12,000 BTU

Room Size

Up to 35m²

—

Energy Rating

A++

Heating Capable

Yes (heat pump)

Smart Home

Amazon Alexa, Google Home, Tuya/SmartLife

Yes

Stock

In Stock

Price inc VAT

£790.00

£604.97

£417.97

£405.90

Common questions about the Devola 12000 BTU Inverter Split System Air Conditioner

How many BTU is the Devola 12000 BTU Inverter Split System Air Conditioner?

The Devola 12000 BTU Inverter Split System Air Conditioner has a cooling capacity of 12,000 BTU, suitable for Up to 35m².

What room size is the Devola 12000 BTU Inverter Split System Air Conditioner suitable for?

The Devola 12000 BTU Inverter Split System Air Conditioner is recommended for rooms Up to 35m².

Can I install the Devola 12000 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 12000 BTU Inverter Split System Air Conditioner smart-home compatible?

Yes — the Devola 12000 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 12000 BTU Inverter Split System Air Conditioner take?

This unit is dispatched in 3-5 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.

Annual energy savings estimate

How much this A++-rated unit could save versus a standard C-rated model, based on your usage.

Electricity tariff (£/kWh)Hours per dayCooling months/year

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
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/devola-12000-btu-inverter-split-system

X Post on X WhatsApp