Carrier Infinity 12,000 BTU High Wall Inverter Split System
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Retail prices include VAT.
Experience superior domestic climate control with the Carrier Infinity 12,000 BTU High Wall Inverter Split System. Engineered for mid-sized living rooms, open-plan apartments, and master bedroom suites, this robust air conditioner provides highly responsive cooling and heat pump capability throughout all four seasons in the UK. The advanced variable-speed inverter compressor automatically modulates output to match thermal demand, resulting in lower power bills and smooth, uninterrupted comfort. Its built-in smart connectivity gives homeowners comprehensive access via companion mobile apps, alongside convenient hands-free voice automation through major digital platforms. Advanced air purification layers effectively remove allergens, airborne dust, and lingering odours from your household environment. Housed in a discrete white indoor enclosure paired with a heavy-duty weather-sealed outdoor condensing unit, this system guarantees whisper-quiet operation and lasting reliability.
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
In stock now — closest alternatives
This unit is on pre-order. These ship now, matched on cooling capacity and price.
Vaillant climaVAIR pro VAI5-035WN 3.5kW Inverter Split Air Conditioner
Mitsubishi Heavy Industries 3.5kW Avanti Premium Wall Mounted Split System (SRK35ZS-WF / SRC35ZS-W)
Hisense Fresh Master 3.5kW Inverter Split
Daikin Sensira FTXF35E/RXF35E
Technical documents & videos
More from Carrier →Official Carrier 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 Carrier — ask us and we will send the cut sheet with mounting and clearance figures.
Description
Experience superior domestic climate control with the Carrier Infinity 12,000 BTU High Wall Inverter Split System. Engineered for mid-sized living rooms, open-plan apartments, and master bedroom suites, this robust air conditioner provides highly responsive cooling and heat pump capability throughout all four seasons in the UK. The advanced variable-speed inverter compressor automatically modulates output to match thermal demand, resulting in lower power bills and smooth, uninterrupted comfort. Its built-in smart connectivity gives homeowners comprehensive access via companion mobile apps, alongside convenient hands-free voice automation through major digital platforms. Advanced air purification layers effectively remove allergens, airborne dust, and lingering odours from your household environment. Housed in a discrete white indoor enclosure paired with a heavy-duty weather-sealed outdoor condensing unit, this system guarantees whisper-quiet operation and lasting reliability.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Carrier Infinity 12,000 BTU High Wall Inverter Split System
How many BTU is the Carrier Infinity 12,000 BTU High Wall Inverter Split System?
The Carrier Infinity 12,000 BTU High Wall Inverter Split System has a cooling capacity of 12,000 BTU, suitable for Up to 35m².
What room size is the Carrier Infinity 12,000 BTU High Wall Inverter Split System suitable for?
The Carrier Infinity 12,000 BTU High Wall Inverter Split System is recommended for rooms Up to 35m².
Can I install the Carrier Infinity 12,000 BTU High Wall 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 Infinity 12,000 BTU High Wall Inverter Split System smart-home compatible?
Yes — the Carrier Infinity 12,000 BTU High Wall Inverter Split System supports Carrier Home App, Amazon Alexa, Google Assistant for app and voice control.
How long does delivery of the Carrier Infinity 12,000 BTU High Wall 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.
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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
90 kWh/yr
EER 14
Standard model
158 kWh/yr
EER 8
Est. saving
£18.31
68 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/carrier-infinity-12000-btu-high-wall-inverter-split-system
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