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Snug but unsafe: your heater may be harming your health. What are your safest choices?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/christine-cowie-191638">Christine Cowie</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/bill-dodd-1280161">Bill Dodd</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888"><em>University of Tasmania</em></a></em></p> <p>We now have a dizzying array of heating technologies to consider, besides the fire that warmed our ancestors.</p> <p>Salespeople will highlight any number of features and minor conveniences. You will be made aware of limited-offer discounts, product warranties, trends in certain Nordic countries, or their low cost (at least in the short-term). What you are less likely to read on the box is, well, the stuff that really matters: the long-term effects on your health and the health of your family, your neighbours and the environment.</p> <p>Yes, a heater should keep you warm affordably. After all, a warm home is vital for your health. But would you run a heater that you knew was increasing the likelihood of your child developing asthma, your partner developing lung cancer, and your neighbour or your grandparent suffering a stroke or heart attack?</p> <p>Many <a href="https://doi.org/10.1016/j.envint.2019.105429">peer-reviewed studies</a> have found domestic heating to be a major source of air pollution and of ill health in Australia. So which heaters are high-risk and which are low-risk? Let’s consider, firstly, the most dangerous heaters.</p> <h2>Extreme-risk heaters</h2> <p>Two rules reduce the risks:</p> <ol> <li> <p>never burn anything (wood, gas or other fuel) in your home without adequate ventilation such as a chimney, exhaust or flue</p> </li> <li> <p>never use an outdoor appliance (heater, cooker, barbecue) inside.</p> </li> </ol> <p>Concerningly, a 2022 <a href="https://asthma.org.au/wp-content/uploads/2022/11/AA2022_Housing-Survey-Report_full_v4.pdf">Asthma Australia survey</a> found 7% of Australians used an unflued gas heater.</p> <p>When gas or other fuel is burnt indoors it releases a range of <a href="https://search.informit.org/doi/abs/10.3316/informit.786585213635569">particles and toxic gases</a>. Most dangerous of all is <a href="https://www.dcceew.gov.au/environment/protection/npi/substances/fact-sheets/carbon-monoxide-0">carbon monoxide</a> (CO). This colourless, odourless gas can build up in unventilated homes, resulting in serious poisoning and death.</p> <p>A recent <a href="https://www.abc.net.au/news/2024-06-29/sydney-family-use-bbq-as-indoor-heater-inhale-carbon-monoxide/104039702">case of carbon monoxide intoxication</a> left three people unconscious in a Sydney home after an outdoor barbecue was used inside as a heater. Outdoor heaters, cookers and barbecues are especially potent sources of carbon monoxide and should never be brought inside.</p> <p>If you have a gas appliance in your home, even if it is ventilated, install a <a href="https://www.energysafe.vic.gov.au/industry-guidance/gas/gas-information-sheets/gis-36-carbon-monoxide-alarms-domestic-use">carbon monoxide alarm</a> for as little as $30.</p> <h2>High-risk heaters</h2> <p><a href="https://www.sciencedirect.com/science/article/pii/S0048969724012087">The evidence</a> is now very clear: wood heater smoke is a potent source of air pollution and significant cause of ill-health in Australia.</p> <p>The more often you burn, the greater the risk. One <a href="https://doi.org/10.1016/j.envint.2023.108128">large population study</a> found even infrequent wood heater use (30 days or more each year) increases the risk of lung cancer by 68%.</p> <p>Wood heaters spill smoke into the home when refuelling. They also suck smoke from outside back into the home as air is drawn up the chimney.</p> <p>If you can smell your wood heater, it is harming your health and exposing you to a toxic mix of particles and gases.</p> <p>For the wider community, the cumulative health impacts of wood heaters are significant.</p> <p>Less than <a href="https://www.abs.gov.au/ausstats/abs@.nsf/Previousproducts/4602.0.55.001Main%20Features5Mar%202011?opendocument&amp;tabname=Summary&amp;prodno=4602.0.55.001&amp;issue=Mar%202011&amp;num=&amp;view=">10% of Australian households</a> use a wood heater. Yet they are the largest source of particulate air pollution in most Australian cities and towns, including <a href="https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Air/sydney-air-quality-study-stage-2-program-report-220644.pdf">Sydney</a>, <a href="http://www.doi.org/10.1016/j.scitotenv.2024.171069">Melbourne</a>, <a href="https://onlinelibrary.wiley.com/doi/full/10.5694/mja2.52176">Canberra</a>, <a href="http://www.doi.org/10.1016/j.scitotenv.2024.171069">Adelaide</a> and <a href="http://www.doi.org/10.3390/ijerph17093264">Hobart</a>. Even in temperate Sydney, wood heaters emit <a href="https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Air/sydney-air-quality-study-stage-2-program-report-220644.pdf">more of this pollution</a> than all the cars, trucks, boats and buses combined, and more than coal-fired power stations and industry.</p> <p><a href="https://safeair.org.au/">Centre for Safe Air</a> researchers <a href="https://doi.org/10.1016/j.scitotenv.2024.171069">estimate</a> wood heaters cause between 558 and 1,555 excess deaths a year in Australia. That’s roughly equivalent to the <a href="https://www.bitre.gov.au/publications/ongoing/road_deaths_australia_monthly_bulletins">annual road toll</a>.</p> <p>Fine particles (2.5 microns or less in diameter – also known as PM2.5) are a major component of wood smoke. PM2.5 increases <a href="https://www.epa.gov/air-research/air-pollution-and-cardiovascular-disease-basics">rates of heart disease and stroke</a>, <a href="https://doi.org/10.3978%2Fj.issn.2072-1439.2016.01.19">lung disease</a>, <a href="https://doi.org/10.1016/j.scitotenv.2018.11.218">dementia and other neurological conditions</a> and <a href="https://asthma.org.au/about-us/advocacy/air-quality">asthma attacks</a>. Risks of <a href="https://doi.org/10.1371/journal.pmed.1003718">adverse pregnancy outcomes</a> and <a href="https://www.eea.europa.eu/publications/air-pollution-and-childrens-health">poorer learning outcomes in children</a> are also increased.</p> <h2>Low-risk heaters</h2> <p>Evidence suggests there is no “safe” level of air pollution, with health effects <a href="https://doi.org/10.1016/j.envint.2019.02.044">seen at very low levels</a>.</p> <p>Even ducted gas heating, where most of the toxins are ventilated, <a href="https://search.informit.org/doi/abs/10.3316/informit.786585213635569">can expose residents to low levels</a> of PM2.5, nitrogen dioxide (NO2), carbon monoxide and formaldehyde. Over time, this can have a range of <a href="https://safeair.org.au/the-health-impacts-of-gas-use-extraction/#gf_1">health impacts</a>, including worsening asthma and respiratory symptoms.</p> <p>Burning gas for heating also adds to greenhouse gas emissions.</p> <p>As Australia transitions to a zero-carbon society, some states and territories are phasing out installation of new wood heaters, such as <a href="https://www.abc.net.au/news/2023-08-24/canberra-to-phase-out-wood-heaters-by-2045/102769162">in the ACT</a>, and gas connections, such as <a href="https://www.planning.vic.gov.au/guides-and-resources/strategies-and-initiatives/victorias-gas-substitution-roadmap">in Victoria</a>. Subsidies to help people replace unhealthy heaters are excellent investments in the environment, public health and health equity.</p> <h2>Healthy heaters</h2> <p>Ultimately, heaters that do not rely on burning fuel inside the home are the safest, and often more affordable, heating option.</p> <p>A <a href="https://www.abc.net.au/news/2023-07-17/cleaning-filters-in-reverse-cycle-air-conditioner-to-save/102594652">well-maintained</a> reverse-cycle air conditioner, sometimes called a heat pump, actually cleans the air inside your home.</p> <p>These air conditioners have the additional benefit of cooling your home in summer. As heatwaves become more severe and frequent, efficient cooling is <a href="https://www.sciencedirect.com/science/article/pii/S0378778823004152">increasingly important for health</a>.</p> <p>As for affordability, an efficient reverse-cycle air conditioner can be up to <a href="https://www.climatechoices.act.gov.au/__data/assets/pdf_file/0005/1862663/Sustainable-Household-Scheme-A-guide-to-reverse-cycle-systems.pdf">seven times as efficient</a> as a gas wall heater in the energy it uses for a given amount of heat.</p> <p>There are many other <a href="https://www.choice.com.au/home-and-living/heating/electric-heaters/articles/which-electric-heater-type-is-best">electric heating technologies</a> – such as fan heaters, oil column heaters, panel heaters, or infrared heaters – that do not release toxins into the home.</p> <p>Heater manufacturers are often reluctant to talk about the health impacts of their products, and regulators are slow to catch up with the science.</p> <p>By thinking about heating in terms of health, you can make your home safer for yourself and the people around you.</p> <p>After all, there’s nothing cosier than a healthy home.<!-- Below is The Conversation's page counter tag. 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More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/christine-cowie-191638"><em>Christine Cowie</em></a><em>, Senior Research Fellow, Centre for Air Quality and Health Research and Evaluation, Woolcock Institute of Medical Research, University of Sydney; Senior Research Fellow, South West Sydney Clinical School, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/bill-dodd-1280161">Bill Dodd</a>, Knowledge Broker, Centre for Safe Air (NHMRC CRE), and Adjunct Researcher, Media School, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p><em>Image </em><em>credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/snug-but-unsafe-your-heater-may-be-harming-your-health-what-are-your-safest-choices-235102">original article</a>.</em></p> </div>

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Australia's radical $4 billion plan to ditch rental bonds

<p>A new plan could see rental bonds become a thing of the past and instead renters would purchase “bond cover” that could potentially cost them 10 times less than a tradition bond.</p> <p>“Rental bonds are painful for renters and they are painful for landlords. Across Australia $4 billion worth of bonds are being held by state governments for years at a time and yet most renters always do the right thing,” said Justin Butterworth, whose startup Snug is advocating the new bond cover model.</p> <p>“We believe rental bonds are a tax on renters to pay for the rental system.”</p> <p>However, tenant advocates believe that bond cover is effectively asking people to fork out an annual fee to access their own cash.</p> <p>Rental bonds generally equal one month’s rent and are held by state government controlled rental boards until the end of the lease.</p> <p>Around Australia, there is around $4 billion tied up in rental bonds and in NSW alone, there is $1.3 billion.</p> <p>State governments earn interest on the bond, which pays for support services for tenants including loans for those who are unable to pay for an upfront bond.</p> <p>Comparison website <a href="https://www.finder.com.au/" target="_blank"><strong><span style="text-decoration: underline;">finder.com.au</span></strong></a> found that people under 24 were more likely to lose all or some of their bond, with the main reasons being due to unpaid rent or water bills, unpaid fees for breaking the lease early or property damage.</p> <p>In 2015-2016, the average bond amounted to $1657 and 55 per cent of bonds were returned in full, according to the NSW Rental Board.</p> <p>Mr Butterworth told <a href="http://www.news.com.au/finance/economy/australian-economy/radical-plan-that-could-see-the-end-to-the-4bn-of-renters-cash-tied-up-in-rental-bonds/news-story/b7f7f907497337260002a45116bf6bd8" target="_blank"><strong><span style="text-decoration: underline;">news.com.au</span></strong></a> that renters should be rewarded for their trust.</p> <p>“Many people rent for years at a time and we found the default rate was very low; a very large amount of renters do the right thing and Australian renters can be trusted. So why do we have bonds, there must be a better way?</p> <p>“If billions of dollars of renters’ capital is being held by the states, they are generating interest that is not going to tenants.</p> <p>“Many renters have student debt, health and life expenses but have thousands of dollars tied up in their bond.”</p> <p>Mr Butterworth’s company Snug focuses on allowing tenants to apply for a bond cover “certificate of guarantee” that is renewed annually.</p> <p>If the tenants have problems at the end of the lease, Snug commits to paying anything owed and the amount is then claimed from the renter.</p> <p>If a claim arose, the landlord and renter would resolve it. However, if that didn’t work, Snug would assess the claim’s validity and then resolve it quickly.</p> <p>"We don’t need four weeks to work out how much a carpet stain in Surry Hills is worth,” said Mr Butterworth, who insisted they would be fair judges on who was at fault.</p> <p>Senior policy officer at the Tenants Union of NSW, Leo Patterson Ross, agreed that renting was becoming increasingly difficult.</p> <p>“Rents are getting higher and so bonds are getting higher and that means there are very legitimate concerns that the barrier to becoming a tenant is being raised. Most bonds are returned so there’s a question mark over what their use is,” he told news.com.au.</p> <p>However, Mr Ross was sceptical that bond cover was better than the current model.</p> <p>“Bonds ensure you have money set aside and if something does go wrong you don’t have to (risk going) through a debt collection agency.”</p> <p>“They’re charging you to keep your own money, and if at the end of the lease there is a problem with the lease you still have to pay for it.”</p> <p>The Tenants Union would prefer to see help in terms of Government loans given to those struggling to pay an upfront bond, over the bond cover resolution.</p> <p>Mr Butterworth said the ACT was the state government most enthusiastic about bond cover with Snug while Queensland had decided to hold off launching.  </p> <p>Do you like the idea of bond cover? Share your thoughts in the comments below. </p> <p> </p>

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