From Gas to Electric: Ensuring Safe and Sustainable Australian Homes
Gas appliances have long been integral to Australian households, offering efficient means for cooking and heating. However, emerging research indicates that these appliances may adversely affect indoor air quality and pose health risks. As Australia moves towards a sustainable and renewable future, it’s crucial to understand these risks, ensure proper ventilation, and consider transitioning to all-electric homes.
Health Risks Associated with Gas Appliances
Burning gas in home appliances releases pollutants such as nitrogen dioxide (NO₂) and fine particulate matter (PM2.5). These contaminants can irritate the airways and trigger asthma symptoms. Notably, the National Asthma Council Australia reports that around 12% of childhood asthma cases in Australia can be attributed to the use of gas stoves for cooking. 
Associate Professor Donna Green from UNSW Sydney highlights that NO₂ exposure can lead to serious health issues, including asthma. Additionally, burning methane—a primary component of gas—can emit carbon monoxide, nitrous oxides, and formaldehyde, further compromising indoor air quality. 
Draught Proofing and Gas Appliances: A Delicate Balance
Draught proofing enhances energy efficiency by sealing gaps that allow unwanted cold air into the home. However, in homes with gas appliances, it’s crucial to maintain adequate ventilation to prevent the buildup of harmful gases. Sustainability Victoria advises that fixed ventilation openings required for flueless and open-flued gas heaters must not be blocked during draught sealing efforts. 
Similarly, the CSIRO emphasizes caution during draught proofing, noting that internal gas appliances require fixed ventilation. Blocking necessary vents can lead to dangerous accumulations of gases like carbon monoxide. 
The Case for Transitioning to an All-Electric Home
Given the health risks and ventilation challenges associated with gas appliances, many Australian homeowners are considering a shift to all-electric homes. Modern electric appliances, such as induction cooktops and heat pumps, offer efficient and safer alternatives.
Benefits of Going All-Electric:
Improved Indoor Air Quality: Eliminating gas appliances reduces the emission of indoor pollutants, leading to a healthier living environment.
Enhanced Energy Efficiency: Electric appliances, especially those powered by renewable energy sources, can be more energy-efficient and environmentally friendly.
Simplified Draught Proofing: Without the need to maintain ventilation for gas appliances, homeowners can seal their homes more effectively, enhancing energy efficiency.
Implementing Draught Proofing in All-Electric Homes
Once a home transitions to all-electric appliances, draught proofing becomes more straightforward. Sealing gaps around doors, windows, and other areas can significantly reduce energy loss.
Steps to Effective Draught Proofing:
Identify Draught Sources: Look for gaps around windows, doors, floorboards, and pipework.
Seal Gaps: Use appropriate materials like sealant, weatherstripping, or draught excluders to block unwanted airflow.
Maintain Necessary Ventilation: Ensure that areas requiring ventilation, such as bathrooms and kitchens, have adequate airflow to prevent moisture buildup.
Conclusion
While gas appliances have been commonplace in Australian homes for decades, growing evidence highlights the potential health risks they pose due to indoor air pollution. Draught proofing in homes with gas appliances requires a careful balance to maintain safety. Transitioning to an all-electric home not only mitigates these health risks but also simplifies draught proofing efforts, leading to a more energy-efficient and healthier living environment. As Australia moves towards sustainable living, embracing electric alternatives and proper home sealing techniques are essential steps in creating safe and eco-friendly homes.
