A monoblock air conditioner is a compact air conditioning unit where all technical components are located in a single housing. Unlike split air conditioners, there is no separate outdoor unit. This makes installation significantly easier – usually, a window or wall opening for the exhaust hose is sufficient.
Monoblock units are particularly popular in Switzerland because they can be used without extensive permits and are well-suited for rental apartments, offices, or attic rooms.
How does a monoblock work?
A monoblock extracts heat from the indoor air and transports it outside via an exhaust hose. At the same time, cooled air is released back into the room.
The process takes place in 4 steps:
- Warm room air is drawn in
- The air is cooled in the unit
- The generated heat is discharged via the hose
- The cooled air flows back into the room
Additionally, many devices reduce humidity, which makes the room even more comfortable.
Advantages of a monoblock air conditioner
Easy Installation
No technician required – set up the device, run the hose out the window, done.
Flexible in use
Ideal for:
- Rental apartments
- Bedrooms
- Offices
- Holiday homes
Cheaper than split air conditioners
Monoblock units are usually significantly more affordable to purchase.
Mobile
Many models have wheels and can be moved between rooms.
Disadvantages of a monoblock
A little louder
Since the compressor is in the room, monoblocks are usually louder than split units.
Less efficient
Warm air can flow back in through the exhaust hose.
Window solution necessary
A window or wall opening is required.
Monoblock vs. Split Air Conditioner
| Criterion | Monoblock | Split Unit |
|---|---|---|
| Installation | very easy | Professional installation required |
| Price | cheaper | more expensive |
| Noise level | higher | quieter |
| Efficiency | medium | high |
| Mobility | often mobile | fixed installation |
Who benefits from a monoblock in Switzerland?
A monoblock is particularly useful if:
- no permanent installation is permitted
- a quick solution for summer heat is sought
- individual rooms need to be cooled
- a good price-performance ratio is important
Typical room sizes range between 15 m² and 40 m², depending on the cooling capacity (kW or BTU).
Tips for optimal performance
- Keep the exhaust hose as short as possible
- Seal windows well
- Choose a unit suitable for the room size
- Reduce direct sunlight exposure
- Keep doors closed
Conclusion
A monoblock air conditioner is a practical and flexible solution for cooling rooms in summer – especially in rental apartments in Switzerland. Those who prefer easy installation and moderate costs will make a good choice with a monoblock.