Hitachi airHome 600 3.5kW Smart Inverter Split System
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Transform the comfort of your living space with the Hitachi airHome 600 3.5kW inverter wall-mounted split air conditioner. Providing 12,000 BTU cooling and up to 14,300 BTU high-efficiency heating, this model is custom-tailored for spaces up to 35m² such as open dining areas, conservatories, and modern apartments. The system uses built-in human activity sensors to redirect gentle breezes towards or away from occupants while modulating cooling output to minimise electricity consumption. FrostWash technology eliminates dust and bacteria from the internal heat exchanger, while the integrated airCloud Go Wi-Fi module enables total climate control from anywhere via smartphone or voice assistants. Operating on eco-conscious R32 refrigerant, the airHome 600 achieves exemplary A+++ energy ratings, lowering carbon footprints and domestic utility bills while delivering continuous, quiet comfort all year.
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
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.
Full Specifications
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
Transform the comfort of your living space with the Hitachi airHome 600 3.5kW inverter wall-mounted split air conditioner. Providing 12,000 BTU cooling and up to 14,300 BTU high-efficiency heating, this model is custom-tailored for spaces up to 35m² such as open dining areas, conservatories, and modern apartments. The system uses built-in human activity sensors to redirect gentle breezes towards or away from occupants while modulating cooling output to minimise electricity consumption. FrostWash technology eliminates dust and bacteria from the internal heat exchanger, while the integrated airCloud Go Wi-Fi module enables total climate control from anywhere via smartphone or voice assistants. Operating on eco-conscious R32 refrigerant, the airHome 600 achieves exemplary A+++ energy ratings, lowering carbon footprints and domestic utility bills while delivering continuous, quiet comfort all year.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Hitachi airHome 600 3.5kW Smart Inverter Split System
How many BTU is the Hitachi airHome 600 3.5kW Smart Inverter Split System?
The Hitachi airHome 600 3.5kW Smart Inverter Split System has a cooling capacity of 12,000 BTU, suitable for Up to 35m².
What room size is the Hitachi airHome 600 3.5kW Smart Inverter Split System suitable for?
The Hitachi airHome 600 3.5kW Smart Inverter Split System is recommended for rooms Up to 35m².
Can I install the Hitachi airHome 600 3.5kW Smart 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 Hitachi airHome 600 3.5kW Smart Inverter Split System smart-home compatible?
Yes — the Hitachi airHome 600 3.5kW Smart Inverter Split System supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the Hitachi airHome 600 3.5kW Smart Inverter 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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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
£849
This AC / season
£283
You save / season
£566
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1048 kWh | £283 | Up to 300% | |
| Plug-in electric heater | 3143 kWh | £849 | 100% | |
| Electric storage heater | 3143 kWh | £849 | 100% |
Heat output estimated from this unit's 14,300 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 £283/season to heat a room vs £849 for an electric heater - that's £566 saved. https://stockool.store/products/hitachi-airhome-600-3-5kw-smart-inverter-split-system
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