Hitachi airHome 800 5.0kW Flagship Smart Inverter Split System Air Conditioner
Trade pricing available — apply or sign in for your trade rate
Retail prices include VAT.
Boasting superior styling and industry-leading performance, the Hitachi airHome 800 5.0kW flagship split system brings quiet, high-efficiency cooling and heat pump warmth to large lounges and premier master suites. Capable of 17,000 BTU cooling and 20,500 BTU heating, it maintains optimal climate control effortlessly while earning an outstanding A+++ efficiency score. Native Wi-Fi support connects to airCloud Go, enabling real-time remote commands, scheduled presets, and hands-free voice management through Amazon Alexa or Google Home. Intelligent onboard sensors adjust the airflow direction based on room presence, while comprehensive FrostWash automated sanitisation maintains exceptional component hygiene and reduces power wastage over time. Installation requires a licensed F-Gas specialist to safely fit indoor and outdoor units and commission refrigerant circuits.
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
Specifications
Description
Boasting superior styling and industry-leading performance, the Hitachi airHome 800 5.0kW flagship split system brings quiet, high-efficiency cooling and heat pump warmth to large lounges and premier master suites. Capable of 17,000 BTU cooling and 20,500 BTU heating, it maintains optimal climate control effortlessly while earning an outstanding A+++ efficiency score. Native Wi-Fi support connects to airCloud Go, enabling real-time remote commands, scheduled presets, and hands-free voice management through Amazon Alexa or Google Home. Intelligent onboard sensors adjust the airflow direction based on room presence, while comprehensive FrostWash automated sanitisation maintains exceptional component hygiene and reduces power wastage over time. Installation requires a licensed F-Gas specialist to safely fit indoor and outdoor units and commission refrigerant circuits.
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
£1217
This AC / season
£406
You save / season
£811
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1502 kWh | £406 | Up to 300% | |
| Plug-in electric heater | 4506 kWh | £1217 | 100% | |
| Electric storage heater | 4506 kWh | £1217 | 100% |
Heat output estimated from this unit's 20,500 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 →