LG data confirms the air conditioner is the most affordable way to stay warm this winter
LG Electronics South Africa’s latest research shows that modern air conditioning is now the most cost-effective way to heat a home. As South Africans prepare for the 2026 winter, the data reveals a significant price gap between traditional gas heating and inverter technology – with aircons being up to 9 times more affordable than using gas.
Many households still believe that gas heaters are the cheaper option. Rising fuel costs and the high efficiency of heat-pump technology have changed the economics of home heating, though.
The high cost of gas heating
The traditional 3-panel gas heater is a common sight in South African homes. However, despite its generally lower upfront costs, it is an expensive way to stay warm on a running basis. The price of LPG gas has reached R66.24 per gallon or about R34 per kilogram. The hourly running cost then comes in at approximately R16.56.
LG’s latest data compares this to a 12 000 BTU DualCool air conditioner. In heating mode, this unit uses an average of 0.66 kW of electricity per hour. Even with the current electricity price hikes, the savings are massive.
In Johannesburg, where electricity costs on average R2.85 per kWh, the LG unit costs only R1.88 per hour to run. In Cape Town, with a higher average tariff of R4.25 per kWh, the cost is R2.81 per hour.
Calculating the monthly savings
When we look at a typical winter month, the financial impact becomes even more obvious. If a household runs a gas heater for 4 hours a day, they will use it for 120 hours in a month.
In Johannesburg, running a gas heater for a month costs R1 987.20. Running an LG air conditioner for the same results costs just R225.6. This is a monthly saving of R1 761.60. The aircon is nearly nine times cheaper to run than gas.
In Cape Town, the LG air conditioner costs R337.20 to run for a month. This saves the household R1 650.00 every month. For the budget-conscious consumer, these savings can be very impactful. (This cost saving may increase further as electricity tariffs continue to rise.)
Why inverter technology is different
The reason for these savings is the LG Dual Inverter Compressor. Traditional heaters and older air conditioners either run at full power or turn off completely. This wastes a lot of energy.
The LG inverter compressor is different. It constantly adjusts its speed to maintain the desired temperature. It never turns off, so it avoids the energy spikes that occur during start-up. This technology allows the unit to use only the exact amount of power needed to keep a room warm.
Beyond the cost, there are health and safety benefits. Gas heaters can reduce indoor air quality and create a fire risk. LG units, such as in the ArtCool range, use the Plasmaster™ Ionizer+ to sterilise the air. They remove odours and harmful particles while providing consistent warmth across the entire room.
Built for South African conditions
Energy efficiency is only part of the story. Appliances in South Africa must be durable. Our power grid is often unstable, and our coastal air is corrosive.
LG has engineered its units to handle these realities. The Volt Care system protects the internal electronics from sudden voltage fluctuations. This ensures the unit keeps running even when the power supply is inconsistent. Additionally, the Gold Fin™ coating protects the heat exchanger from rust and corrosion. This is especially important for households and organisations in coastal cities like Cape Town.
Making the smart choice this winter
As the first cold fronts of 2026 arrive, South Africans are looking for ways to stay warm without breaking the bank. The data shows that the larger initial investment in a high-quality air conditioner pays for itself through lower running costs.
Staying warm this winter does not have to be expensive. By choosing efficient technology, households can protect their budgets from rising energy costs while enjoying a cleaner and safer home environment.