How Expensive is Air Conditioning to Run?

Asking how expensive it is to run air conditioning in your home is like asking how long a piece of string is; it’s an impossible question to answer. With that being said, Neil Armstrong was told it would be impossible to go to the moon; Churchill was told it would be impossible to beat the Germans and Leicester were told it would be impossible to win the Premier League — and so we’re going to give it a go.

The reason why the question is so difficult to answer is because it relies on a number of different factors to calculate. Bear in mind that the cost will be determined by how hard the air conditioner has to work to reach your desired temperature. High power consumption = higher costs, and how much power is consumed will vary greatly depending on some of the following factors:

The Temperature You Set Your Thermostat To

Most air conditioners are connected to thermostats which calculate the current temperature of the room and adjust your air conditioner to the optimal output to reach a set temperature. Therefore if you want a room particularly cold and are in a warm environment then this is going to require a larger amount of power than just cooling down the room a little.

What Your Room Is Like

Are you cooling or heating a large room? A room with many windows? Single glazed? Double glazed? What about the materials used in your roof? How insulated is your home? All of these factors will determine how easy it is for your air conditioner to get your room to its desired temperature.

The Unit Itself

The energy efficiency of your unit will factor in here. Older air conditioners will likely be more expensive due to their outdated technology.

Tackling the question

Despite all this, the team at FM Mechanical have made a few calculations to help you get a rough idea on how much your air conditioning may cost you.

The average size of a living room in the UK is 17.1sqm. We’ve calculated that an average air conditioner running at about 3.5kw in an average UK living room will cost roughly 40p per hour to operate.  Assuming you are running the air conditioner for eight hours a day, that would be £3.20 per day for a standard living room. If you’re going to use it for particularly hot or cold days — let’s say a quarter of the year — then you’d rack up approximately £292 per year for the pleasure. Bear in mind that this number may double or triple if you are using multiple air conditioners to cool multiple rooms.

Regardless of whether that number seems large or small to you, there are always steps you can take to reduce your air conditioning bill, including:

  • Making sure your home is properly insulated
  • Keeping your air conditioner at a single temperature
  • Turning your air conditioner off when the home is vacant for a long period of time
  • Keeping your air conditioner on when the house is vacant for a very short period of time; this is because the air conditioner may actually use more energy to turn off, turn back on and reheat a room than it would if you just left it running
  • Only use the air conditioner when you really need it

Here at FM Mechanical we offer a wide selection of air conditioning and are always available to answer any queries you may have about price, energy consumption or anything else. We pride ourselves on our transparency and when ordering with us you can feel assured of never being hit with any unexpected fees. To enquire further about any of the extensive products and services we offer, give us a call today.