Air conditioner vs Electric heater

Did you know than an air conditioner is at least 3 times more efficient as an electric heater?

To get a bit technical with this, A normal bar heater draws 2 kW of power for 2 kW of heat. A reverse cycle air conditioner which has a cooling and heating function, requires only 0.6 kW of electrical power for 2 kW of heat! This means that an air condition beats old fashioned heating methods hands down!

How does a reverse cycle air conditioner work?

A reverse cycle takes free heat from the air around us and a fan forces air across an evaporator that contains a very cold liquid refrigerant. The heat in the air warms the refrigerant and changes it to a gas. This gas is circulated by a compressor and the increasing pressure causes the temperature of the gas to rise further. The high temperature gas then goes to a condenser where the heat is transferred to the air. The refrigerant cools to a liquid and the cycle starts again.

So, you may want to reconsider your heating methods in your home or office this winter. You could save a whole lot of money by simply using your air conditioner over a normal old heater!

Benefits in using an air conditioner

There are more benefits to be got from the air conditioner:

  1. The air is distributed evenly throughout the room. Many air conditioner brands now have 3D air distribution that circulates the air to the corners. In the case of electric heaters it is hot near the heater and cold in the rest of the room.
  2. Thermostatically controlled so no electricity is wasted by overheating.
  3. In summer the air conditioner is used for cooling whereas the electric heater sits dormant in storage.
  4. Electric heaters have safety issues. A 2 kW electric heater can overload electric circuits especially in older houses. Overloaded circuits can cause fires. In addition the high radiant heat close to the heater can cause clothing to catch fire.

The economical way to ensure maximum enjoyment from your pool!

Enjoy your SWIMMING POOL all year round* with a Heat Pump pool heater
– at a third of the cost of electrical heating!

Most pool owners rarely use their pools for more than 4 months a year due to the water being too cold. But with a Heat Pump Pool Heater, you can enjoy your pool whenever you like – even all year round* – and at an economical cost! Your installer will advise on the correct size of Heat Pump for your pool, and a pool blanket will also be required for the set temperature to be maintained.

•Heat your pool to 30º+ for a fraction of the cost of an electric heater
• Maximises year-round enjoyment of your pool. (Note that a pool blanket is required to maintain temperature.)
• The neat weatherproof unit is quickly and easily installed near your pool – no large unsightly solar panels required
• Titanium Heat Exchanger guards against corrosion
• Extremely competitively priced
• Adds to the value of your home

Cost-effective pool heating
The reason a Heat Pump Pool Heater is so cost-effective is because it doesn’t use a current gobbling electric element to heat. Instead it works by compressing a gas within a closed-circuit. This creates heat which is then transferred to your pool water via a heat exchanger. Further round within the closed-circuit, the compressed gas passes through an evaporator and becomes extremely cold, while a fan blows outside air over the piping. The cold gas then absorbs ‘free’ heat from the air which is then transferred back into the pool water after the gas is compressed again. To run the compressor and fan
takes only as little as 1.5 to 3 kilowatts of electricity per hour.

User-friendly ‘set-and-forget’ controls
With automatic start-up and shutdown as set by the user’s requirements, an Alliance unit is simplicity itself to operate.
Operates in all weathers
With an normal operating temperature range from –7ºC to +35 ºC, the Alliance unit is unaffected by rain, snow or clouds. Automatic defrosting protection is built in, and the unit can operate day or night as required. (A pool blanket is required to maintain constant year-round temperature)
Titanium heat-exchanger
A Heat Pump Pool Heater uses advanced corrosion-resistant titanium heat-exchanger technology ensuring maximum protection against corrosion.
We have a brands available for home pools
A choice of models is available to suit various-sized pools. Your installer will advise on the correct one for your pool.
Eco-friendly R410A gas
Environmentally-friendly R410A gas is used in Alliance units, ensuring no pollution of the atmosphere.

Making Sense of What’s On SA Energy Efficiency Label

By law, all air conditioners in South Africa must have energy efficiency labels. These provide air conditioner efficiency ratings.

It’s a good idea to check and make sense of these ratings when you’re choosing an air conditioner. The more efficient an air conditioner, the less you’ll pay to run it – and the more environmentally friendly it will be.


Understanding an air conditioner’s energy efficiency class

In South Africa, an air conditioner is assigned an energy efficiency class, ranging from A++ (being the most efficient) to E (the least efficient).

Although there are seven classes – A++, A+, A, B, C, D and E – only those that achieve a rating of B or better may be sold.

A particular model’s class is indicated by a black arrow alongside the relevant colour band on the label, below the model’s name.

Comparing air conditioner efficiency ratings, however, isn’t helpful on its own. There are several other factors to take into consideration when deciding on the most energy efficient model.

How to determine an air conditioner’s efficiency


Another element on the South African label is the energy efficiency ratio (EER).

This is a ratio that shows the amount of cooling output, in kilowatts, that’s produced per unit of energy that the air conditioner consumes. (The cooling output is also specified on the label).

In other words, the EER tells you how well an air con cools per unit of electricity it uses.

A higher EER is good. It means an air conditioner uses less energy and will cost less to run.

Additional energy efficiency label information

Once you’ve checked the air conditioner efficiency ratings and EER, you should have a fairly good idea of a unit’s efficiency at cooling.

Additional information on the label is useful for comparing air conditioners’ performance in terms of heating and noise.

Air conditioner heating performance


Do you plan to use an air conditioner for heating as well as cooling? Heating performance gets its own A to G class rating. Keep an eye out – this probably won’t be the same as the appliance’s energy efficiency class.

Air conditioner noise level


This is an optional, nice-to-know extra that indicates how noisy an air conditioner is likely to be.

What’s the most efficient type of air conditioner?
Newer inverter models are the most energy efficient air conditioners on the market. On average, inverter systems use between 30 and 50 percent less energy than non-inverter air conditioners.

An inverter air conditioner’s compressor starts at full throttle to cool a room quickly. Once the room has reached the desired temperature, the compressor continually makes small adjustments, maintaining a constant temperature.

This is in contrast to non-inverter models, which run at full power to cool a room, switch off and then switch on again at full power once the ambient temperature has changed. Inverter models do tend to be pricier, however.

Whichever type of system you’re considering, it’s worth checking its air conditioner energy efficiency rating. At RF Refrigeration & Airconditioning , we offer a wide range of both inverter and non-inverter air conditioners, at affordable prices. We also offer a professional installation and maintenance service.