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.

Samsung WindFree Avant S2 4.2kW Wall Split System

In StockEnergy A++

£1,190.000

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

Dispatched in 2-3 working days

UK-Wide Delivery

Free UK mainland delivery on in-stock units

Retail prices include VAT.

The Samsung WindFree Avant S2 4.2kW is a powerful, high-capacity wall-mounted split system designed for larger open-plan living areas or commercial spaces. This unit combines robust cooling performance with the signature WindFree technology, ensuring that even in larger rooms, air is distributed evenly without creating unpleasant drafts. The system is highly efficient, utilizing advanced inverter technology to maintain the desired temperature while minimizing energy waste. Users benefit from smart connectivity, allowing for remote operation and scheduling via the SmartThings app, ensuring your environment is perfectly conditioned before you arrive. The unit is also equipped with a high-performance heat pump, making it an excellent choice for year-round climate control in the UK. Its durable construction and quiet operation make it a top-tier choice for those who demand both power and comfort. Whether you are cooling a large lounge or heating a home office, this unit delivers consistent, reliable performance with a modern, stylish finish.

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

SmartThings

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

Cooling Capacity

14,300 BTU

Energy Rating

A++

Recommended Room

Up to 45m²

Technical documents & videos

Official Samsung manual

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

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

Full Specifications

Cooling Capacity14,300 BTU

Recommended Room SizeUp to 45m²

Energy RatingA++

Smart HomeSamsung SmartThings

Noise Level—

CategorySplit System AC

SKUAR70F09C1AWNEU

Dimensions & fit

Height × width × depth in millimetres

Unit size

Height

Confirming

Width

Confirming

Depth

Confirming

Manufacturer cabinet figures, excluding packaging and pipework. Leave clearance around the outdoor unit for airflow — ask us if you need the full cut sheet with mounting and clearance requirements.

Description

Compare similar units

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

This Unit

Samsung

Samsung WindFree Avant S2 4.2kW Wall Split System

Vaillant

Vaillant climaVAIR multi VAM1-040A2NO Dual-Zone Multi Split Outdoor Unit 4.0kW

Fujitsu

Fujitsu Airstage KM Series 4.2kW Wall Mounted Split System

Dantherm

Dantherm AC 15000 Mobile Split

Cooling Capacity

14,300 BTU

14,000 BTU

15,000 BTU

Room Size

Up to 45m²

Up to 45 m² total across 2 rooms

Up to 45m²

Energy Rating

A++

A+

Heating Capable

Yes (heat pump)

Smart Home

Samsung SmartThings

Amazon Alexa, Google Home, iOS / Android App

Google Home, Amazon Alexa

Tuya/SmartLife

Stock

In Stock

Price inc VAT

£1,190.00

£1,179.10

£960.00

£3,134.33

Common questions about the Samsung WindFree Avant S2 4.2kW Wall Split System

How many BTU is the Samsung WindFree Avant S2 4.2kW Wall Split System?

The Samsung WindFree Avant S2 4.2kW Wall Split System has a cooling capacity of 14,300 BTU, suitable for Up to 45m².

What room size is the Samsung WindFree Avant S2 4.2kW Wall Split System suitable for?

The Samsung WindFree Avant S2 4.2kW Wall Split System is recommended for rooms Up to 45m².

Can I install the Samsung WindFree Avant S2 4.2kW Wall 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 Samsung WindFree Avant S2 4.2kW Wall Split System smart-home compatible?

Yes — the Samsung WindFree Avant S2 4.2kW Wall Split System supports Samsung SmartThings for app and voice control.

How long does delivery of the Samsung WindFree Avant S2 4.2kW Wall Split System 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.

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

116 kWh/yr

EER 13

Standard model

189 kWh/yr

EER 8

Est. saving

£19.59

73 kWh/yr less

Estimate based on the unit's energy-rating efficiency factor and cooling capacity (14,300 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 5 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.

Electric heater / season

£950

This AC / season

£317

You save / season

£633

~67% less electricity

Heating method	Electricity / season	Cost / season	Efficiency
This heat-pump AC	1172 kWh	£317	Up to 300%
Plug-in electric heater	3517 kWh	£950	100%
Electric storage heater	3517 kWh	£950	100%

Heat output estimated from this unit's 16,000 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 £317/season to heat a room vs £950 for an electric heater - that's £633 saved. https://stockool.store/products/samsung-windfree-avant-s2-4-2kw-wall-split

X Post on X WhatsApp