
Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump
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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
Technical documents & videos
More from Bosch →Official Bosch manual
The manufacturer's PDF for this model is being sourced and will be downloadable here.
Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Bosch — ask us and we will send the cut sheet with mounting and clearance figures.
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.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump
How many BTU is the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump?
The Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump has a cooling capacity of 12,000 BTU, suitable for 25-38 m².
What room size is the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump suitable for?
The Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump is recommended for rooms 25-38 m².
Can I install the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump 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 Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump smart-home compatible?
Yes — the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump supports Bosch HomeCom Easy, Amazon Alexa, Google Assistant for app and voice control.
How long does delivery of the Bosch Climate 4000i 3.5kW Smart Inverter Split System Air Conditioner Heat Pump take?
This unit is 2-4 business 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
97 kWh/yr
EER 13
Standard model
158 kWh/yr
EER 8
Est. saving
£16.44
61 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
£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 →
Share your savings
This heat-pump AC costs only £257/season to heat a room vs £772 for an electric heater - that's £514 saved. https://stockool.store/products/bosch-climate-4000i-3-5kw-smart-inverter-split-system-heat-pump
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