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.

Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System

In StockEnergy A++

£1,174.99

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 Mitsubishi Electric MSZ-AY50VGK is a premium wall-mounted split system designed for larger residential or office spaces. Delivering 5.0kW of cooling power, this unit is engineered for high performance and whisper-quiet operation, reaching as low as 18dB(A). It features advanced R32 refrigerant technology and an A++ energy rating, ensuring cost-effective climate control throughout the year. The system includes integrated MELCloud Wi-Fi management, allowing you to monitor and adjust your indoor environment remotely via smartphone or tablet. With its sleek, matte white finish and double-barrier coating to prevent dust and grease accumulation, it blends seamlessly into modern interiors. This reverse-cycle heat pump is perfect for year-round comfort, providing efficient heating in winter and powerful cooling in summer. Ideal for rooms up to 45m², it offers a sophisticated, smart-ready solution for those who refuse to compromise on comfort or energy efficiency.

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 Home

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

Cooling Capacity

18,000 BTU

Energy Rating

A++

Recommended Room

Up to 45m²

Technical documents & videos

Official Mitsubishi Electric manual

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

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

Full Specifications

Cooling Capacity18,000 BTU

Recommended Room SizeUp to 45m²

Energy RatingA++

Smart HomeAmazon Alexa, Google Home

Noise Level—

CategorySplit System AC

SKUMSZ-AY50VGK-MUZ-AY50VG

Physical dimensions

Exact dimensions for this model are being confirmed with Mitsubishi Electric — 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

Mitsubishi Electric

Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System

TCL

TCL 18000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Midea

Midea Comfee 18000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

LG DualCool Pro A++ 18000 BTU Smart Wall Mounted Split Air Conditioner with Heat Pump

Cooling Capacity

18,000 BTU

Room Size

Up to 45m²

—

Energy Rating

A++

Heating Capable

Yes (heat pump)

Smart Home

Amazon Alexa, Google Home

Yes

Stock

In Stock

Price inc VAT

£1,174.99

£659.97

£548.90

£933.90

Common questions about the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System

How many BTU is the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System?

The Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System has a cooling capacity of 18,000 BTU, suitable for Up to 45m².

What room size is the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System suitable for?

The Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System is recommended for rooms Up to 45m².

Can I install the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted 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 Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System smart-home compatible?

Yes — the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted Split System supports Amazon Alexa, Google Home for app and voice control.

How long does delivery of the Mitsubishi Electric MSZ-AY50VGK 5.0kW Wall Mounted 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

146 kWh/yr

EER 13

Standard model

237 kWh/yr

EER 8

Est. saving

£24.65

91 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

£1114

This AC / season

£371

You save / season

£743

~67% less electricity

Heating method	Electricity / season	Cost / season	Efficiency
This heat-pump AC	1375 kWh	£371	Up to 300%
Plug-in electric heater	4125 kWh	£1114	100%
Electric storage heater	4125 kWh	£1114	100%

Heat output estimated from this unit's 18,766 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 £371/season to heat a room vs £1114 for an electric heater - that's £743 saved. https://stockool.store/products/mitsubishi-electric-msz-ay50vgk-5-0kw-wall-mounted-split-system

X Post on X WhatsApp