Air-conditioned heating has become one of the fastest growing solutions in Hungary in recent years. It offers an economical, energy efficient and modern alternative, which in many cases is cheaper to run than conventional systems. However, most people only realise when using it how many small mistakes can be made that can increase consumption, reduce comfort and even shorten the life of the appliance.
In this article, we've collected the most common mistakes to avoid if you want to heat with air conditioning, and show you how to get the most out of it make the most of your system.
Why are more and more people choosing air conditioning for heating?
- Energy efficiency and low consumption: modern inverter air conditioners are highly efficient in heating mode. They can produce 2-10 kW of heat from 1 kW of electricity, depending on the operating conditions.
- Quick installation without a big investment: upgrading heating is often involves significant costs, but an air conditioner can be installed relatively quickly and with a small investment.
- The benefits of inverter technology: during heating, the appliance continuously adjusts its output to the current heat demand, maintaining a stable temperature while consuming less energy.
The most common mistakes when heating with air conditioning - and how to avoid them
Mistake 1 - You choose the wrong air conditioner for heating
Not all air conditioners are the same, and even today there are models that are basically designed for cooling, but only for supplementary heating.
What to watch?
- SCOP value (min. above 4.5 recommended), but especially COP value at -7 or -15 °C
- Minimum operating temperature (-15°C / -20°C / -25°C)
- Minimum power (how long the unit can demodulate)
SMARTAIR experts always recommend a device that heats reliably in cold weather.
Mistake 2 - You don't have the system sized by a professional
Choosing an air conditioner for a 20 m² room is different from choosing one for a 60 m² living room. A wrongly sized air conditioner:
- will not cool the room if the power is too low
- switches on and off too often → shorter lifetime, poor thermal comfort, higher consumption
The size of the room, the insulation, the quality of the windows and the placement all play a role in choosing the right air conditioning system.
Error 3 - You set the air conditioner to the wrong temperature
Many people think that setting the air conditioning to 29-30°C will make the house heat up faster. This is not true: the temperature of the air blown out by the appliance does not depend on the set temperature. The problem is that:
- the room will often be overheated, causing uncomfortable heat fluctuations and unjustified excess consumption
- the appliance is often switched off rather than on due to overheating, which exacerbates the problems mentioned in the previous point.
Proposal: Turn on the air conditioner, allow the room to warm up evenly and set the desired temperature between 21-23°C. This will ensure a stable thermal sensation and economical operation without unnecessary overloading.
Error 4 - You set the wrong airflow direction
The warm air rises upwards, so if you aim the louvres upwards from the start, you will create a less comfortable thermal sensation, especially in rooms with high ceilings.
Ideal setting for heating:
- slats downwards
- automatic fan speed
This way, the warm air is better distributed.
Mistake 5 - Neglecting regular maintenance
The air conditioning system is subjected to higher loads than heating, so regular cleaning is even more important.
Lack of maintenance:
- increases consumption
- reduces efficiency
- may cause unpleasant odours
- shorten the life of the equipment
Proposed: professional cleaning at least 1 time a year.
Error 6 - Improper placement of the outdoor unit
The outdoor unit is exposed to serious challenges in winter. If it is not placed in the right place, it can result in icing, malfunction or reduced performance.
Important aspects:
- install the outdoor unit as high as possible
- pay attention to protection against snow and precipitation
- ensure good drainage and
- free air flow
Mistake 7 - Using the wrong air conditioner for continuous heating
Air conditioning works efficiently when it is operating at a stable output. Frequent on/off switching or extreme settings increase consumption.
What should you do?
- use ECO mode
- set a timer
- do not turn off completely at night if it is likely to be very cold
- maintain a stable temperature of around 21-23°C
When is heating with air conditioning a good choice - and when not?
- It is particularly effective in well-insulated homes: air-conditioned heating can be one of the most economical solutions in modern, energy-efficient buildings.
- It is more economical than gas heating in temporary periods: in autumn and spring, less energy is needed for heating, so air conditioning is highly efficient.
When is it not recommended to heat exclusively with air conditioning?
- for poorly insulated buildings
- in rooms with high ceilings
- in extreme cold climates
In such cases, a combined heating solution is recommended.
How can you save on air-conditioned heating?
- Correct temperature setting: between 21-23 °C is ideal for feeling the heat and the consumption is.
- Using timers and ECO mode: helps to prevent the air conditioner from working unnecessarily.
- Regular filter cleaning: a dusty filter can increase consumption by up to 10-30%.
- Winter protection of outdoor units: de-icing and free air circulation are key.
SMARTAIR's expert tips for efficient air-conditioned heating
Choosing the right device
Think only of a model that is specifically designed for heating - SMARTAIR experts can help you.
Professional survey and installation
A well selected and well installed air conditioner can consume up to 30% less.
Regular maintenance
The basis for safe, efficient and long-term operation.
Summary
Heating with air conditioning is modern, energy efficient and in many cases very cost effective - but only if you avoid the most common mistakes. Choosing the right appliance, accurate installation and regular maintenance all contribute to keeping your air conditioner running efficiently all winter long.