For decades, gas cooking was considered the professional standard. But the science of induction cooking has caught up, and on several dimensions — energy efficiency, indoor air quality, speed, and environmental impact — induction has overtaken gas. The case for keeping gas in your kitchen is narrower than most people realise.
Induction cooktops use electromagnetic fields to directly heat the cookware itself — the cooktop surface doesn't get hot. This has several consequences that reframe the entire comparison: 85-90% of the energy goes directly into cooking (vs 40-55% for gas, where much heat is lost around the sides of pots); the surface cools almost immediately after removing cookware, making it far safer for homes with children; and there's no combustion, so no indoor air pollution of any kind.
Gas cooking appears cheap on the energy tariff because gas is priced per MJ and the headline rate looks low. But once you account for the efficiency difference, the picture changes. Gas cooking: average Australian household spends approximately $150-$250/year on gas for cooking. Gas cooktops are 40-55% efficient — 45-60% of purchased energy heats your kitchen, not your food. Induction cooking: at 85-90% efficiency and $0.30/kWh, a comparable cooking load costs approximately $80-$130/year on electricity. If you have rooftop solar, cooking during the day can bring this cost close to zero. Annual saving from switching: approximately $70-$170/year in direct energy costs — increasing as gas prices rise (up 15-25% in Australia since 2022) while solar electricity reduces household electricity costs.
Gas combustion produces nitrogen dioxide (NO2), carbon monoxide (CO), formaldehyde, and fine particulate matter directly inside your home. Research published in the International Journal of Epidemiology found children in homes with gas cooktops have a 42% higher risk of asthma compared to homes with electric cooking. A 2022 Stanford study found gas stoves leak methane even when turned off, contributing to indoor air pollution year-round. Induction produces zero combustion emissions. For households with children or people with respiratory conditions, the indoor air quality argument for induction is compelling independent of any cost or environmental consideration.
Gas loyalists cite two genuine advantages: the visual feedback of an open flame for techniques like charring and flambeing, and the ability to use any cookware. Induction responds: boiling water is 25-50% faster than gas. Temperature control is more precise — a quality induction hob maintains a specific simmer temperature more reliably than a gas flame at low settings. The "instant on, instant off" responsiveness matches gas. Pan compatibility requires magnetic-base cookware (cast iron, most stainless steel, enamelled steel work perfectly; pure aluminium and copper don't without an induction-compatible disc). Honest verdict: gas has advantages for specific high-heat techniques involving open flame contact with food. For 95% of home cooking — sauteing, simmering, boiling, frying — induction is equal or superior in controllability and speed.
A quality 60cm gas cooktop (Bosch, Fisher and Paykel): $600-$1,500 plus $200-$500 installation by a licensed gas plumber — total $800-$2,000. A quality 60cm induction cooktop (Bosch, Miele, AEG): $700-$2,000 plus $150-$350 for a dedicated electrical circuit if required — total $850-$2,350. Upfront costs are broadly comparable. Induction doesn't require a gas line (saving $500-$1,500 if no gas is currently connected to the kitchen), but may require electrical panel upgrades in older homes.
Gas cooking burns natural gas — a fossil fuel — producing CO2 at the point of combustion plus methane leakage from supply infrastructure (methane is 80x more potent than CO2 over 20 years). A household gas cooktop produces approximately 400-700kg CO2 equivalent per year including upstream leakage. Induction cooking on Australia's average grid: approximately 80-160kg CO2e/year. On rooftop solar: near zero. As the grid decarbonises, induction cooking's emissions decrease automatically. Gas cooking's emissions are locked in until the appliance is replaced.
For new kitchen installations or cooktop replacements in 2026: induction is the superior choice on cost, efficiency, indoor air quality, and environmental impact. The cooking performance gap is narrower than gas advocates claim and wider than induction advocates claim — it's real for specific professional techniques and largely irrelevant for everyday home cooking. If you have rooftop solar, cooking during the day can bring this cost close to zero. For most Australian households upgrading their kitchen, induction is now the right default choice. Consider this part of broader eco-friendly home upgrades that can significantly reduce both your environmental footprint and energy consumption when paired with home energy monitoring.
No — the heat source doesn't affect food flavour. Induction heats the pan directly; the cooking surface doesn't get hot. The taste of food depends on the cooking technique and ingredients, not whether the energy source is gas flame or electromagnetic induction. Professional chefs who have switched to induction consistently report no difference in food quality.
Only pans with magnetic bases work on induction — cast iron, most stainless steel, enamelled steel and carbon steel all work. Pure aluminium, copper, and some non-magnetic stainless pans don't work. Test your existing pans with a magnet: if a magnet sticks to the bottom, the pan works on induction. Induction adapter discs ($10–$25) allow non-magnetic pans to be used but reduce efficiency.