Viessmann Vitoclima 300-S Kombi 5.3kW Dual-Zone Multi Split Outdoor Unit
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Engineered for optimal comfort, the Viessmann Vitoclima 300-S Kombi 5.3kW multi split outdoor condenser delivers dependable twin-room climate management. This system connects up to two high-wall or cassette indoor units, giving you autonomous thermal scheduling across multiple zones. Powered by a high-efficiency DC inverter compressor, it delivers seamless variable capacity control to ensure quiet running, stable room temperatures, and reduced electricity consumption. The unit features eco-friendly R32 refrigerant alongside an intelligent heat pump reversing cycle capable of providing reliable, rapid heating even when ambient outdoor temperatures plunge down to -15°C. With robust German engineering standards and protective gold-fin coating on the condenser coil, it is specifically built to withstand challenging UK coastal and humid weather conditions.
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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
Engineered for optimal comfort, the Viessmann Vitoclima 300-S Kombi 5.3kW multi split outdoor condenser delivers dependable twin-room climate management. This system connects up to two high-wall or cassette indoor units, giving you autonomous thermal scheduling across multiple zones. Powered by a high-efficiency DC inverter compressor, it delivers seamless variable capacity control to ensure quiet running, stable room temperatures, and reduced electricity consumption. The unit features eco-friendly R32 refrigerant alongside an intelligent heat pump reversing cycle capable of providing reliable, rapid heating even when ambient outdoor temperatures plunge down to -15°C. With robust German engineering standards and protective gold-fin coating on the condenser coil, it is specifically built to withstand challenging UK coastal and humid weather conditions.
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
£1157
This AC / season
£386
You save / season
£772
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1429 kWh | £386 | Up to 300% | |
| Plug-in electric heater | 4286 kWh | £1157 | 100% | |
| Electric storage heater | 4286 kWh | £1157 | 100% |
Heat output estimated from this unit's 19,500 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 →