Air-conditioning systems, properly compared.
A clear guide to the system architectures, controls and design decisions behind high-performing heating and cooling.
Choose the architecture before the product.
The system type affects appearance, comfort, controls, installation complexity, maintenance and future flexibility.
| System | Best suited to | Key strengths | Considerations |
|---|---|---|---|
| Wall-mounted split | Single rooms, bedrooms, home offices | Efficient, flexible, straightforward servicing | Indoor unit remains visible |
| Multi-split | Several rooms with limited outdoor space | Multiple indoor units connected to one condenser | System design and pipe routes become more complex |
| Concealed ducted | Premium homes, hotels, offices and renovations | Minimal visual impact, discreet air distribution | Requires ceiling or service voids and careful access planning |
| Ceiling cassette | Offices, retail and open commercial spaces | Good air distribution and familiar commercial format | Ceiling space, drainage and maintenance access required |
| VRF / VRV | Large, zoned or multi-use buildings | Flexible capacity, zoning and central controls | Requires specialist design, commissioning and maintenance |
| Floor-mounted | Lofts, low walls and rooms with limited high-level positions | Alternative placement and strong heating performance | Uses lower wall or floor space |
Comfort should be simple to control.
Options can include individual remotes, Wi-Fi apps, scheduling, central controllers, occupancy strategies and building-management integration. The best control system is the one occupants can actually use and facilities teams can support.
What we compare.
Heating and cooling capacity, operating range, seasonal efficiency and part-load performance.
Indoor and outdoor sound data, operating modes, placement and the sensitivity of neighbouring rooms or properties.
Unit format, colour options, dimensions, grilles, pipe routes, outdoor visibility and concealed alternatives.
Parts availability, technical support, warranty terms, maintenance requirements and installer status.