Are Indoor Gas Heaters Safe For Your Home?

As winter rolls in and we reach for the thermostat, many households are asking the question: Are indoor gas heaters safe for your home?
Gas heating is popular across Australia because it’s fast and efficient, however, it’s not without its risks. From carbon monoxide leaks to poor ventilation and air pollution, it’s important to know how to use gas appliances correctly.
Whether you’re using an unflued gas heater, central heating unit, or portable space heater, safety comes first. But with the right gas heater safety precautions, staying safe and warm all winter is possible.
How Indoor Gas Heaters Work
Indoor gas heaters burn natural gas or liquefied petroleum gas (LPG) to produce heat. It becomes a quick and often very efficient way to heat your home, which is why gas heating is a popular choice in colder months.
There are different types of gas heaters, including:
- flued gas heaters
- unflued gas heaters
- open flued gas heaters
- central heating units
Flued systems direct combustion products like exhaust gases outside the home, while unflued models release them indoors. During the combustion process, gas heaters also produce water vapour, which can increase humidity levels.
When you use it correctly and put proper ventilation in place, gas appliances provide reliable heating to your home. But without sufficient care, they can contribute to indoor air pollution and affect the surrounding air quality.
The Hidden Dangers: Carbon Monoxide and Other Air Pollutants
One of the biggest risks with indoor gas heaters is carbon monoxide leaks. The natural process of combustion is responsible for the production of this colourless and odourless gas. Unfortunately, it can build up quickly in the rooms of your house if there is poor ventilation or a fault in the heater.
Breathing in carbon monoxide (CO) can cause serious health effects, including:
- headaches
- dizziness
- nausea
- (and in extreme cases) death
Along with CO, gas heaters can also release nitrogen dioxide, carbon dioxide and other air pollutants that affect indoor air quality. Each of these combustion by-products can irritate the lungs and exacerbate common respiratory conditions like asthma.
If you want to reduce the risk of CO poisoning and protect your family – and why wouldn’t you? – install carbon monoxide alarms and get your gas heaters professionally serviced regularly.
Helpful Tips for Safely Using Gas Heaters Indoors
Using your indoor gas heater safely can make all the difference between a cosy night in and a health hazard that requires a 000 call. Whether you’re using an unflued gas heater or central heating unit, follow these essential tips to reduce risks and improve air quality:
- Get a licensed heating and cooling technician to service your gas heater every two years.
- If you’re using an unflued heater, make sure you have sufficient ventilation. Open windows or run an exhaust fan.
- Fit a carbon monoxide alarm with visual and audible alarms for CO leaks.
- Keep flammable materials away from the heater.
- Never use outdoor gas appliances or patio heaters indoors.
- Replace old gas appliances if they show signs of wear or damage.
Adopting these few simple precautions means you can use your gas heater safely and breathe easy at home.
Ventilation and Fresh Air
Whenever you ask the question, “Are indoor gas heaters safe?” it’s important to remember the importance of having suitable ventilation measures in place.
To send combustion products released by your indoor gas heater outside into the open air, particularly if it’s an unflued gas heater, your room must have proper ventilation. Insufficient circulation of fresh air allows by-products like carbon monoxide, nitrogen dioxide, and water vapour to accumulate and affect indoor air quality. Poor airflow can lead to stale air, moisture problems, and even serious health risks. And you certainly don’t want any of that.
Thankfully, improving the ventilation in your room can be as simple as opening a window, using exhaust fans or choosing heaters with built-in flued gas systems.
In the end, breathing clean air isn’t about mere comfort; it’s a safety essential. Keep your home safe and your surrounding air fresh by giving those fumes a way out.
Are Outdoor Gas Heaters Safe to Use Indoors?
We’ve covered the question “Are indoor gas heaters safe to use?”, but how about outdoor gas heaters? Is it safe to use them inside your home rather than just out on the back patio?
Outdoor gas heaters, including patio heaters and other portable outdoor gas appliances, might seem like a quick fix for indoor warmth. However, they are not designed for enclosed spaces. They lack the necessary safety features to manage combustion products, and using them indoors can cause dangerous levels of carbon monoxide to build up. It takes very little time for carbon monoxide to reach harmful levels, especially without adequate ventilation. Even opening a window isn’t enough.
For your safety, only use heaters designed for indoor spaces. The risk just isn’t worth it, so stick to gas heating appliances that are properly certified for indoor use.
When to Replace or Upgrade Your Gas Heater
If your gas heater is over a decade old, it might be time to consider upgrading.
Older units can become less reliable, less efficient and more likely to leak carbon monoxide or other combustion products. Warning signs of gas installations on their way out include:
- yellow flame
- strange smells
- odd noises
- it takes longer for the heater to warm the room
Servicing helps to an extent, but sometimes the safest option is to replace the unit altogether. Newer gas heating appliances are more energy efficient, safer and better for your indoor air quality.
If you’re switching from an older model, get a licensed or registered gasfitter on board for a thorough gas safety check and proper installation.
Stay Safe and Warm with Gas Heater Know-How
Indoor gas heaters can be a great way to keep your home warm and cosy, but it’s important to use them safely and responsibly. From keeping your heater properly maintained to maximising your ventilation, every step matters in protecting your family from risks like carbon monoxide poisoning and poor air quality. And that goes for old and new heaters alike. Only use gas appliances designed for indoor use, put in some carbon monoxide alarms and never take shortcuts with gas safety.
If your heater’s seen better days, upgrading to a more energy-efficient model could improve both safety and performance. With the right care and attention, you can enjoy the comfort of gas heating without compromising your wellbeing.
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