Heat pumps are an increasingly popular solution for heating and cooling homes. The two main types of air source heat pumps, monoblock and split, offer different approaches to constructing an effective source of thermal energy. In this article, we will look at aspects that will allow us to answer the question - "why a monoblock heat pump may be a better choice than its split counterpart?"
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Simplicity of installation of monoblock heat pumps
Monoblock heat pumps are characterized by much simpler installation compared to split heat pumps. In the case of a monoblock, all main components, such as compressor, heat exchanger, control system, are located in one housing and are completely installed in the heat pump.
This makes the installation of a monoblock pump much simpler, requiring less complicated assembly work and limited only to hydraulic and electrical connections. Without the need to build a gas connection, which in turn requires specialized knowledge and equipment as well as much more time.
In turn, split heat pumps consist of two main units: one located inside the building (e.g. in a utility room, garage or boiler room) and the other outside. This division introduces additional difficulties related to the arrangement of components and the need to connect them using pipes transporting refrigerant gases and cables. The simplicity of installing a monoblock heat pump translates into lower installation costs and a much lower chance of making installation errors.
Heating capacity of monoblock heat pumps
Monoblock heat pumps can be more efficient due to lower heat losses when transferring thermal energy between units. Additionally, the proximity of all components placed in one housing significantly reduces internal energy losses. In the case of split heat pumps, the pipes and ducts connecting the indoor and outdoor units can cause some heat loss, which can affect the efficiency of the entire system.
In addition, monoblock heat pumps are usually more condensed, which allows for better control over the heat transfer process. Thanks to this, in low temperature conditions, monoblocks can maintain higher efficiency compared to split heat pumps.
Aesthetics and space of monoblock heat pumps
Monoblock heat pumps are more aesthetic because all components are enclosed in one housing. This solution is particularly attractive for people who particularly care about the aesthetics of their surroundings, because the monoblock can be easily hidden and, in some cases, also adapted to the building's surroundings, e.g. by ordering the device in a color that matches the building's facade.
Split heat pumps, because they have two units, one of which requires installation inside the building, may also require more space and may be less aesthetic. Additionally, installing the indoor unit in a room may limit the arrangement possibilities of the space inside the building. It is also necessary to make a connection that ensures the circulation of refrigerant gases between the unit installed inside and outside the house.
Ergonomics of monoblock heat pump operation
In a monoblock pump, the compressor along with all other elements is placed in one housing mounted outside the building, and therefore all the noise generated by the devices remains outside. 
An additional advantage of monoblock heat pumps is the possibility of using the R290 refrigerant, which allows for higher supply temperatures.
While both heat pumps have their advantages, the monobloc heat pump seems to be the better choice for many reasons. The simplicity of installation, efficiency and aesthetics make monoblocks an increasingly preferred solution in the field of heating and cooling of buildings. Of course, the final choice depends on individual needs, budget and installation conditions, but monoblock heat pumps certainly deserve attention due to their numerous advantages.