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Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System
Hitachi

Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System

In StockEnergy A++
£694.03£795.00Save £100.97

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
🇪🇺 EU Delivery available
Dispatched in 3–7 working days, then 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.

The Hitachi airHome 400 2.5kW inverter split system brings intelligent, energy-saving climate control to residential and light commercial settings across the UK. Designed for bedrooms, modern home offices, and small lounges up to 25m², it delivers 9,000 BTU of cooling power alongside reliable reverse-cycle heating. Featuring Hitachi's revolutionary FrostWash self-cleaning technology, the indoor unit freezes airborne dust, pollen, and impurities before washing them away automatically, maintaining optimal hygiene and peak performance year after year. The integrated airCloud Go Wi-Fi platform provides complete smartphone management, smart geo-fencing to adjust temperatures before you arrive home, and seamless hands-free control via Amazon Alexa and Google Home. Its sleek, minimalist white chassis blends discretely with British home decor while delivering ultra-quiet sound output down to 20dB(A). Boasting A++ seasonal energy efficiency, this eco-friendly R32 wall-mounted split system is an exceptional long-term investment for year-round domestic climate control.

1

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.

Amazon AlexaGoogle Home
  • Free UK mainland delivery on in-stock units
  • Manufacturer warranty included
  • 14-day returns

Cooling Capacity

9,000 BTU

Energy Rating

A++

Recommended Room

Up to 25m²

Technical documents & videos

More from Hitachi →

Official Hitachi manual

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

Full Model Line Catalogue

Hitachi catalogue — open the official flipbook in a new tab.

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Full Specifications

Cooling Capacity9,000 BTU
Recommended Room SizeUp to 25m²
Energy RatingA++
Smart HomeAmazon Alexa, Google Home
Noise Level—
CategorySplit System AC
SKURAK-DJ25PHAE-RAC-DJ25PHAE

Physical dimensions

Exact dimensions for this model are being confirmed with Hitachi — ask us and we will send the cut sheet with mounting and clearance figures.

Description

The Hitachi airHome 400 2.5kW inverter split system brings intelligent, energy-saving climate control to residential and light commercial settings across the UK. Designed for bedrooms, modern home offices, and small lounges up to 25m², it delivers 9,000 BTU of cooling power alongside reliable reverse-cycle heating. Featuring Hitachi's revolutionary FrostWash self-cleaning technology, the indoor unit freezes airborne dust, pollen, and impurities before washing them away automatically, maintaining optimal hygiene and peak performance year after year. The integrated airCloud Go Wi-Fi platform provides complete smartphone management, smart geo-fencing to adjust temperatures before you arrive home, and seamless hands-free control via Amazon Alexa and Google Home. Its sleek, minimalist white chassis blends discretely with British home decor while delivering ultra-quiet sound output down to 20dB(A). Boasting A++ seasonal energy efficiency, this eco-friendly R32 wall-mounted split system is an exceptional long-term investment for year-round domestic climate control.

Compare similar units

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

This Unit
Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System

Hitachi

Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System

Midea Comfee 9000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Midea

Midea Comfee 9000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Samsung A++ 9000 BTU Wall Mounted Air Conditioner with Heat Pump

Samsung

Samsung A++ 9000 BTU Wall Mounted Air Conditioner with Heat Pump

Toshiba RAS9 9000 BTU A++ Wall Mounted Split Air Conditioner with Heat Pump

Toshiba

Toshiba RAS9 9000 BTU A++ Wall Mounted Split Air Conditioner with Heat Pump

Cooling Capacity
9,000 BTU
9,000 BTU
9,000 BTU
9,000 BTU
Room Size
Up to 25m²
—
—
—
Energy Rating
A++
A++
A++
A++
Heating Capable
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Smart Home
Amazon Alexa, Google Home
Yes
Not built-in
Not built-in
Stock
In Stock
In Stock
In Stock
In Stock
Price inc VAT
£694.03
£384.97
£493.90
£659.97

Common questions about the Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System

How many BTU is the Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System?

The Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System has a cooling capacity of 9,000 BTU, suitable for Up to 25m².

What room size is the Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System suitable for?

The Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System is recommended for rooms Up to 25m².

Can I install the Hitachi airHome 400 2.5kW Inverter 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 Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System smart-home compatible?

Yes — the Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System supports Amazon Alexa, Google Home for app and voice control.

How long does delivery of the Hitachi airHome 400 2.5kW Inverter 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.

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Annual energy savings estimate

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

This unit

73 kWh/yr

EER 13

Standard model

119 kWh/yr

EER 8

Est. saving

£12.33

46 kWh/yr less

Estimate based on the unit's energy-rating efficiency factor and cooling capacity (9,000 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 3 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.

Electric heater / season

£688

This AC / season

£229

You save / season

£459

~67% less electricity

Heating methodElectricity / seasonCost / seasonEfficiencySummer cooling
This heat-pump AC850 kWh£229Up to 300%
Plug-in electric heater2550 kWh£688100%
Electric storage heater2550 kWh£688100%

Heat output estimated from this unit's 11,600 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 £229/season to heat a room vs £688 for an electric heater - that's £459 saved. https://stockool.store/products/hitachi-airhome-400-2-5kw-inverter-wall-mounted-split-system

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