5 Safety Considerations When Installing a Gas Water Heater

In many New Zealand homes, a gas water heater is an essential appliance that provides a reliable and efficient source of hot water for everyday use. As the name implies, this type of heater uses natural gas or liquefied petroleum gas to do its job. While gas water heaters are known for their efficiency and cost-effectiveness, the installation of these appliances comes with several safety considerations every homeowner needs to think about.

Installing a gas water heater is a complex process that involves connecting the appliance to your home’s gas supply, ensuring proper ventilation, and securing all fittings and connections. Due to the potential associated risks, like leaks, fire hazards, and carbon monoxide poisoning, a licensed professional is highly recommended to carry out the installation. A qualified plumber with experience in gas installations will ensure that the appliance is correctly installed and that all necessary safety checks are performed. They can also make sure it’s done in compliance with New Zealand's safety regulations. Simply put, remember to look for plumbers Dunedin residents trust so you can be certain of the efficient and safe installation and operation of your gas water heater.

Apart from the help of a professional plumber, there are many other key safety considerations to keep in mind when installing a gas water heater. Let us walk you through them. 

1. Select the Right Location

The right location for your gas water heater is crucial for both safety and operational efficiency. In New Zealand, specific guidelines dictate where a gas water heater can and cannot be installed, primarily to ensure adequate ventilation and safe expulsion of exhaust gases.

When selecting a location, ensure that the chosen area is well-ventilated to prevent the build-up of harmful gases like carbon monoxide. For this reason, gas water heaters are often installed in open areas or near external walls so that flue gasses can be safely expelled. The location should also allow easy access for inspections, maintenance, and repairs. 

2. Ensure Proper Ventilation

As previously mentioned, proper ventilation is a critical safety factor when installing a gas water heater. Ventilation ensures that combustion gases, including carbon monoxide, are safely expelled so that there’s little to no risk of gas poisoning.

In some cases, natural ventilation through windows or vents may suffice, but this largely depends on the size of the installation area and the specific model of the water heater. In more enclosed spaces, mechanical ventilation or a properly installed flue system is necessary. These systems are designed to ensure that all exhaust gasses are directed outside, away from living spaces. Without adequate ventilation, carbon monoxide can accumulate to dangerous levels, posing a severe health risk. Therefore, it is crucial to assess the ventilation requirements of the gas water heater during the planning stage of the installation to ensure that the chosen location is suitable.

3. Check the Gas Connections

Another safety consideration you need to take note of when installing a gas water heater is the security and proper installation of gas connections to prevent leaks. This ensures not only the safety of your household but also the efficient operation of your gas water heater.

Additionally, all gas fittings and pipes used during installation must be certified to meet New Zealand standards. This ensures they are designed to handle the specific requirements of your gas water heater. After installation, licensed gas fitters will conduct a thorough leak test using specialised equipment. This step is crucial, as even a small gas leak can lead to serious safety hazards over time. 

Lastly, homeowners should remain vigilant and regularly check for signs of wear or damage to the gas connections. If you notice any unusual smells, such as the distinctive odour of sulphur or rotten eggs, or if the connections appear to be corroding, it is important to contact a professional plumber immediately to address the issue before it escalates.

4. Install the Safety Features

Modern gas water heaters come equipped with various safety features designed to prevent accidents and ensure the safe operation of the appliance. As part of the installation process, check that these features are installed and functioning correctly.

One essential safety feature is the flame failure device, which automatically shuts off the gas supply if the flame is extinguished. This prevents gas from leaking into the home, reducing the risk of a fire or explosion. Another important safety feature is the pressure relief valve, which prevents the build-up of excess pressure within the water heater. If pressure levels become too high, the valve will automatically release some of the pressure, preventing potential explosions. 

5. Install Carbon Monoxide Detectors

As a final safety measure, you should also install carbon monoxide detectors in your home when installing a gas water heater. While the detectors are optional, they play an essential role in helping protect your home and family from the inherent risks of using gas-powered appliances. These detectors can alert you to dangerous levels of carbon monoxide, a dangerous, colourless, and odourless gas produced by gas appliances if they're not burning fuel properly or if ventilation is inadequate. With a carbon monoxide detector, you can evacuate on time and seek immediate help before the situation becomes life-threatening.

Ideally, you should install carbon monoxide monitors or alarms near bedrooms and other living areas. This way, they can warn you about dangerous levels of carbon monoxide even while you’re asleep or otherwise relaxing and are thus less alert. 

The installation of a gas water heater is a complex task that requires careful attention to a variety of safety considerations. Consider each of the steps discussed in this article to enjoy the benefits of a gas water heater with the confidence that your household is protected. Remember, when it comes to gas appliance installations, safety should always be your top priority. With this in mind, contact Mains Plumber for professional gas fitting services. We will ensure all aspects of the gas water heater installation are done correctly, reducing the risk of dangerous malfunctions. Call our hotline or send us an enquiry by filling out our contact form.