
Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump
Trade pricing available — apply or sign in for your trade rate
Retail prices include VAT.
Combining premium design aesthetics with advanced energy management, the Bosch Climate 4000i 3.5kW split air conditioner provides 12,000 BTU of cooling and 13,000 BTU of reverse-cycle heating. Engineered for living rooms, modern apartments, and open-plan dining spaces, this system ensures constant comfort while earning an exceptional A++ seasonal cooling efficiency rating. With integrated smart capabilities, users can manage target room temperatures, set weekly operating schedules, and monitor power usage remotely via the Bosch HomeCom Easy smartphone app. The unit's multidirectional 3D swing system guarantees smooth air diffusion throughout the space, while the silent fan profile keeps running sound levels under 21 dB(A). Built-in ionisation and cold-catalyst air filtration eliminate indoor dust, allergens, and common pet odours. The anti-corrosion condenser casing ensures dependable year-round operation in damp UK coastal and suburban climates.
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
Full Specifications
Description
Combining premium design aesthetics with advanced energy management, the Bosch Climate 4000i 3.5kW split air conditioner provides 12,000 BTU of cooling and 13,000 BTU of reverse-cycle heating. Engineered for living rooms, modern apartments, and open-plan dining spaces, this system ensures constant comfort while earning an exceptional A++ seasonal cooling efficiency rating. With integrated smart capabilities, users can manage target room temperatures, set weekly operating schedules, and monitor power usage remotely via the Bosch HomeCom Easy smartphone app. The unit's multidirectional 3D swing system guarantees smooth air diffusion throughout the space, while the silent fan profile keeps running sound levels under 21 dB(A). Built-in ionisation and cold-catalyst air filtration eliminate indoor dust, allergens, and common pet odours. The anti-corrosion condenser casing ensures dependable year-round operation in damp UK coastal and suburban climates.
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
£772
This AC / season
£257
You save / season
£514
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 953 kWh | £257 | Up to 300% | |
| Plug-in electric heater | 2858 kWh | £772 | 100% | |
| Electric storage heater | 2858 kWh | £772 | 100% |
Heat output estimated from this unit's 13,000 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 →
