A single air conditioner can indeed cool your entire house, but this depends on various factors such as the size of your home, insulation, ceiling height, and the capacity of the unit. For an average home of 80-120 square meters, a powerful monoblock air conditioner is often sufficient, provided you have an open floor plan and can create good air circulation.

Why does poor air circulation cause your energy bill to skyrocket?

If your air conditioner has to fight against closed doors and walls to distribute cool air throughout your home, the unit works much harder than necessary. This means that your air conditioner is constantly running at full power without reaching the desired temperature, which can increase your energy consumption by 30-50%. Consequently, you pay much more while certain rooms remain warm.

The solution lies in strategically placing fans and leaving interior doors open. By improving air circulation, one powerful air conditioner can effectively distribute cool air throughout your entire home without working overtime.

What does insufficient air conditioning capacity mean for your comfort and your wallet?

An air conditioner that is too small for your space runs constantly without ever reaching the desired temperature. This leads not only to frustration because certain rooms remain warm, but also to unnecessary wear and tear on the unit. Your air conditioner breaks down faster and your energy bill remains high, while your comfort level stays low.

By carefully calculating the capacity you need in advance and possibly opting for a slightly more powerful model, you can prevent these problems. A properly sized air conditioner reaches the desired temperature faster and then switches to an energy-efficient maintenance mode.

Can one air conditioner effectively cool your entire house?

Yes, one air conditioner can effectively cool your entire house, but there are important conditions. The key lies in the right capacity, strategic placement, and good air circulation throughout your home.

For successful cooling with one device, you need:

An open or semi-open floor plan where air can circulate freely
Sufficient capacity – count on approximately 100-150 watts of cooling capacity per square meter
Central placement of the air conditioner, preferably in the living room.
Support by ceiling fans or floor fans
Interior doors that can remain open during cooling

Modern monoblock air conditioners without an outdoor unit are perfectly suited for this. They often feature inverter technology, allowing them to save energy and maintain a stable temperature. For homes up to 120 square meters, a 12HP model is often sufficient, depending on insulation and the number of windows.

How do you calculate how much cooling capacity your house needs?

The calculation of cooling capacity depends on several factors that together determine how much heat your air conditioner needs to dissipate. A simple rule of thumb is 100-150 watts per square meter, but for an accurate calculation, you need to take more aspects into account.

Important factors for capacity calculation:

Floor area of all rooms to be cooled
Ceiling height – higher ceilings require more capacity
Number and size of windows, especially on the south side
Insulation quality of walls, roof, and floors
Number of people who are regularly in the house
Heat-producing devices such as computers and hotplates

A well-insulated home of 100 square meters usually requires an air conditioner of 10-12 HP. With poor insulation or many windows, this can increase to 15-18 HP. For precise calculations, you can use online calculators or ask a specialist for advice.

What is the difference between central air conditioning and separate units?

Central air conditioning and standalone units differ fundamentally in how they distribute cooling throughout your home. Central systems work via ducts and grilles, while standalone units blow air directly into a single room.

Central air conditioning features:

One large system with piping throughout the entire house
Even temperature in all rooms
Higher installation costs but lower operating costs
Invisible – only grilles in ceiling or wall
Suitable for new construction or major renovations

Standalone units (such as monoblock air conditioners):

Standalone appliances per room or zone
Flexible temperature control per room
Lower installation costs, quick assembly possible
Visible in the room but with modern designs
Perfect for existing homes

For existing homes, separate units are often more practical. You do not need to install pipework and can expand in phases. A powerful monoblock air conditioner in the living room is often sufficient for smaller homes.

What alternatives are there if one air conditioner is not enough?

If one air conditioner proves insufficient for your entire home, there are several smart alternatives that offer better coverage without exceeding your budget.

Practical alternatives:

Two-zone system: A powerful air conditioner downstairs and a smaller unit upstairs
Main unit plus fans: One powerful air conditioner supplemented with ceiling or floor fans
Monoblock plus mobile units: Fixed installation in main living area, portable air conditioners for bedrooms
Phased expansion: Start with one unit, add a second one later.

For many Dutch homes, a combination of a 12HP monoblock air conditioner in the living room plus one smaller unit for the bedroom floor works perfectly. This gives you full control over different zones without the complexity of a central system.

Also consider timing: often, cooling is only needed downstairs during the day and in the bedrooms at night. One well-placed air conditioner can suffice if you smartly plan when you use which rooms.

How The Concrete Driller helps with air conditioning system

We specialize in the professional installation of monoblock air conditioners without an outdoor unit. Thanks to our years of experience in concrete drilling and facade work, we can mount your air conditioner perfectly and safely, regardless of the type of wall.

Our services include:

Professional drilling of two 16 cm diameter holes through concrete or stone walls
Use of water-cooled core drills for concrete walls and dust extraction for stone walls
Installation with steel grilles and condensate drainage
Protection of walls and floors during the work
Neat finish where the workplace is left tidy

Whether you choose one powerful air conditioner for your entire home or a combination of units, we ensure a professional installation that lasts for years. Contact us Contact us for advice on the best solution for your situation.

Can you cool your entire house with 1 air conditioner?