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Carrier Performance 12,000 BTU Wall Mounted Inverter Split System

Pre-OrderEnergy A++

£783.58£970.00Save £186.42

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

Pre-order — approx. 4 weeks

UK-Wide Delivery

Free UK mainland delivery on in-stock units

🇪🇺 EU Delivery available

EU pre-order — approx. 4 weeks, dispatch + 5–10 working days EU transit

Orders under €150 ship VAT-paid at checkout (IOSS, no charges on delivery). Orders of €150 or more ship DDU — import VAT and customs duty are collected by the courier on delivery.

Retail prices include VAT.

Designed for standard UK bedrooms, home lounges, and open workspaces, the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System delivers exceptional cooling and heating versatility. Featuring an advanced DC inverter drive, the compressor actively adjusts its rotational speed in response to thermal changes, delivering steady room conditions and eliminating noticeable draughts. Built-in Wi-Fi makes smart integration straightforward, providing full remote management from smartphones as well as integration with popular voice assistants. An automatic cleaning cycle dries the evaporator coil after cooling to deter mold growth and preserve pristine indoor air. Its streamlined chassis mounts cleanly high on any interior wall, while the robust outdoor condensing unit resists adverse British weather. Professional F-Gas certified installation ensures safe, dependable performance and maximum system longevity.

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

Carrier Home AppAmazon AlexaGoogle Assistant

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

In stock now — closest alternatives

This unit is on pre-order. These ship now, matched on cooling capacity and price.

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Browse all in-stock units →

Cooling Capacity

12,000 BTU

Energy Rating

A++

Recommended Room

Up to 35m²

Technical documents & videos

Official Carrier manual

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

All Carrier 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 HomeCarrier Home App, Amazon Alexa, Google Assistant

Noise Level—

CategorySplit System AC

SKUCAR-PERF-12-HW

Physical dimensions

Exact dimensions for this model are being confirmed with Carrier — 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

Carrier

Carrier Performance 12,000 BTU Wall Mounted Inverter Split System

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

Carrier Home App, Amazon Alexa, Google Assistant

Yes

Stock

Pre-Order

In Stock

Price inc VAT

£783.58

£604.97

£417.97

£405.90

Common questions about the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System

How many BTU is the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System?

The Carrier Performance 12,000 BTU Wall Mounted Inverter Split System has a cooling capacity of 12,000 BTU, suitable for Up to 35m².

What room size is the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System suitable for?

The Carrier Performance 12,000 BTU Wall Mounted Inverter Split System is recommended for rooms Up to 35m².

Can I install the Carrier Performance 12,000 BTU Wall Mounted Inverter Split 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 Carrier Performance 12,000 BTU Wall Mounted Inverter Split System smart-home compatible?

Yes — the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System supports Carrier Home App, Amazon Alexa, Google Assistant for app and voice control.

How long does delivery of the Carrier Performance 12,000 BTU Wall Mounted Inverter Split System take?

This unit is 2-4 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

£742

This AC / season

£247

You save / season

£495

~67% less electricity

Heating method	Electricity / season	Cost / season	Efficiency
This heat-pump AC	916 kWh	£247	Up to 300%
Plug-in electric heater	2748 kWh	£742	100%
Electric storage heater	2748 kWh	£742	100%

Heat output estimated from this unit's 12,500 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 £247/season to heat a room vs £742 for an electric heater - that's £495 saved. https://stockool.store/products/carrier-performance-12000-btu-wall-mounted-inverter-split-system

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