I used their service 15 days ago and it was perfect. Young engineer with assistance and they did a job perfectly and cleaned whole place. All recomendations
Zoran Ivanovic · Google reviews
Air conditioning in Luxembourg: pleasant coolness thanks to air conditioning in the house
Banish the summer heat from your workplace as well as from your bedroom
Free quote · Fast reply
4,8out of 5 · 16 reviews · Google reviews
01The simple way of cooling with monobloc and window air conditioners
Pleasant coolness with an attractive design and no conspicuous boxes on the facade
Monobloc means that the air conditioner consists of a single unit in which coolness is produced by an evaporator and heat by a compressor. We mount modern, slim wall units indoors on an exterior wall. Only two air ducts lead outside. The air conditioner draws in outside air, cools and dries it before blowing the cool breeze into the room. The warm exhaust air escapes together with the condensate through the second air duct. Alternatively, we mount window units in a window. These are easy to relocate, as no air ducts are required.
Control is electronic, and many of our units can be operated via smartphone. Models with inverter technology even keep the desired temperature constant.
02We assemble and charge split air conditioning systems on site
Single-split and multi-split air conditioners – from cooling individual rooms to air conditioning the whole house
Split systems consist of an indoor unit with an evaporator for cooling and an outdoor unit with a compressor (condenser) that produces heat. The two units are connected by refrigerant lines, so only certified professionals like those at HSL are allowed to install them. In single-split units, one outdoor unit is connected to one cooling unit. You use it to cool one room. In multi-split systems, one outdoor unit usually supplies 2 to 5 indoor units, up to 8 depending on the model. You can therefore have several rooms cooled via one compressor.
Only small openings in the masonry are required for the refrigerant lines, but the compressor takes up some space outside. The condensate is usually drained by an additional pump.
03Portable air conditioners provide coolness wherever you need it
Flexible cooling: no fixed installation, simply place it in the room, switch it on and you are done
All portable air conditioners are monobloc systems. Unlike wall and window units, you can place them freely in the room – no fixed installation or wall openings are needed. The warm exhaust air is carried outside through a flexible exhaust hose, for example through a slightly open window. If you use the unit regularly in the same rooms, you can have a fixed exhaust outlet installed there and connect the hose to it.
These units are perfect if you want to cool different rooms during the day, for example the study at midday and the bedroom at night. However, they are generally less efficient than fixed installations.
Air conditioning
Let's talk about your project
Tell us what you have in mind – the site visit and the quote are free.
- Fast reply (working days)
- Free and without obligation
- Your data is never passed on to third parties
How we prepare your quote
Every quote follows a free site visit. These points determine the scope:
- Area and number of rooms to cool
- Unit type: mono-split or multi-split
- Position of the units and route of the lines
Frequently asked questions
No. Split systems contain refrigerant and may only be installed and charged by certified specialist companies such as HSL-Technik.
Yes. One outdoor unit usually supplies 2 to 5 indoor units, up to 8 depending on the model, so you can air-condition several rooms individually.
Modern split units are very efficient; consumption depends on room size and use – we advise you.
Yes, most units work as a heat pump and heat efficiently in spring and autumn.
Once a year, including filter cleaning and a check of the refrigerant circuit.
