The Gas Works News Blog

A gas geyser is an efficient water heating system powered by liquefied petroleum gas (LPG) or natural gas. Unlike electric geysers, which rely on stored energy, gas geysers provide hot water on demand by heating water as it flows through the unit. This makes them an increasingly popular choice for homeowners and businesses looking to save on electricity costs while enjoying a consistent supply of hot water.

In South Africa, where load shedding and high electricity tariffs often pose challenges, gas geysers have emerged as a reliable alternative. Whether you're upgrading your current water heating system or considering a new installation, a gas geyser offers a practical and cost-effective solution.

For residents in Cape Town, professional gas geyser installation is essential to ensure the system operates safely and complies with South African gas regulations. Registered installers like The Gas Works provide peace of mind by delivering quality installations in line with strict gas geyser installation regulations.

How Gas Geysers Work

A gas geyser operates on a simple yet efficient mechanism that heats water instantly as it flows through the system. Unlike traditional electric geysers that store pre-heated water in a tank, gas geysers heat water on demand, ensuring that you never run out of hot water.

Here’s a step-by-step look at how a gas geyser functions:

1.    Water Flow Activation

When you open a hot water tap, the water begins to flow through the gas geyser. This flow activates the geyser’s ignition system.

2.    Gas Ignition

The geyser automatically ignites a gas burner, usually powered by LPG or natural gas, which heats up a series of copper or stainless-steel pipes. These pipes are often coiled to maximize heating efficiency.

3.    Instantaneous Heating

As water flows through the heated pipes, it absorbs heat from the burner. By the time it reaches the tap, the water is already at the desired temperature.

4.    Temperature Control

Modern gas geysers come equipped with adjustable temperature settings, allowing you to control how hot the water gets. This feature not only adds convenience but also helps to conserve energy by heating water only to the level you need. 

Benefits of Using a Gas Geyser

Switching to a gas geyser offers numerous advantages, making it a practical choice for both residential and commercial settings. Here are some key benefits that highlight why gas geysers are gaining popularity:

1. Energy Efficiency

Gas geysers only heat water as you need it, avoiding the continuous energy consumption required to keep water hot in a storage tank. This efficiency translates to lower energy bills, particularly in regions with high electricity tariffs.

2. Continuous Hot Water Supply

Unlike electric systems that rely on stored water, a gas geyser provides an uninterrupted hot water supply. This is especially beneficial for larger households or businesses with higher water usage.

3. Reliable During Power Outages

South Africa's frequent power cuts can leave homes without hot water for extended periods. Gas geysers, powered independently of the electrical grid, ensure access to hot water regardless of load shedding schedules.

4. Environmentally Friendly

Gas geysers produce fewer carbon emissions compared to electricity generated from fossil fuels. For environmentally conscious households, this makes them a more sustainable choice.

5. Compact and Space-Saving

Most gas geysers are compact and can be installed on walls, freeing up valuable space. This makes them an ideal choice for properties with limited room for larger appliances.

Gas geysers provide a combination of cost-saving, convenience, and sustainability, making them a worthwhile investment.

Types of Gas Geysers Available

When choosing a gas geyser, it’s essential to understand the different options available to ensure you select the right one for your needs. The type of geyser you choose will depend on factors such as water usage, household size, and installation preferences.

1. Low-Pressure vs. High-Pressure Gas Geysers

• Low-Pressure Gas Geysers: These are ideal for areas with lower water pressure. They are more affordable but may have limitations in delivering a high flow rate of hot water.
• High-Pressure Gas Geysers: Designed to handle standard or higher water pressure, these geysers are perfect for modern plumbing systems and homes with multiple water outlets.

2. Indoor vs. Outdoor Gas Geysers

• Indoor Gas Geysers: Installed inside the home, these systems require proper ventilation to expel gas emissions safely. They often come with advanced safety features like carbon monoxide detectors and automatic shutoff systems.
• Outdoor Gas Geysers: These are mounted outside the property and are built to withstand weather conditions. They’re an excellent choice for homes looking to save interior space and simplify installation.

4. Sizing Options

Gas geysers are available in different sizes, typically measured in litres per minute (L/min). Choosing the right size depends on how many hot water outlets you need to supply simultaneously. For example:

• 10–12 L/min: Suitable for small households or single bathrooms.
• 16–20 L/min: Ideal for medium-sized households with two bathrooms.
• 20+ L/min: Designed for large homes or properties with higher water demand.

Gas Geyser Installation

Proper gas geyser installation is critical to ensure the system operates safely and efficiently. Whether you're upgrading your water heating solution or installing a new gas geyser in your home, following best practices and adhering to gas geyser installation regulations is essential.

1. The Importance of Professional Installation

Installing a gas geyser requires expertise and precision, as it involves handling gas lines, water connections, and ventilation systems. A qualified and registered installer ensures:

• The installation meets legal safety standards.
• Proper functioning of the gas geyser.
• Prevention of risks such as gas leaks or improper venting.

2. Key Installation Considerations

• Placement: Gas geysers must be installed in areas that allow adequate ventilation to safely expel combustion gases. Outdoor installations are common, but indoor units require flue systems to direct emissions outside.
• Water Supply: A steady and reliable water pressure is essential for the geyser to function correctly. The installer may assess and adjust your water supply if needed.
• Gas Line Connection: Only certified installers are permitted to connect your gas geyser to a gas supply, ensuring compliance with South African safety standards.
• Electrical Connections (if applicable): Some gas geysers require a small amount of electricity for ignition or display functions. This connection must also meet safety standards.

3. Gas Geyser Installation Regulations in South Africa

South African law has strict guidelines for installing gas appliances to protect property and lives. Some of the key regulations include:

• Installations must be carried out by a qualified installer registered with the Liquefied Petroleum Gas Safety Association of Southern Africa (LPGSA).
• Proper ventilation is required to prevent the buildup of harmful gases, particularly in indoor setups.
• Compliance with SANS 10087 standards, which govern the installation and use of gas appliances.
• A Certificate of Compliance (CoC) must be issued upon completion of the installation to confirm that it meets all safety and regulatory requirements.

Failing to comply with these regulations can lead to safety hazards and legal penalties. Always choose a registered professional to handle the process.

Maintenance and Troubleshooting

Regular maintenance of your gas geyser is essential for ensuring its longevity, safety, and efficiency. Like any appliance, a gas geyser requires care and occasional troubleshooting to keep it running smoothly.

1. Routine Maintenance Tips

Proper maintenance helps to prevent common issues and extend the lifespan of your gas geyser. Here are some essential tips:

• Annual Servicing: Schedule a professional service at least once a year to inspect the burner, pipes, and overall performance.
• Descaling: If you live in an area with hard water, mineral buildup can occur inside the system. Periodic descaling ensures optimal water flow and heating efficiency.
• Inspect for Leaks: Regularly check gas and water connections for signs of leaks, wear, or corrosion. Address any issues immediately to prevent further damage.
• Clean the Filters: Many gas geysers come with water filters to trap debris. Cleaning or replacing these filters ensures the water flows without obstruction.
• Ventilation Check: Ensure that the flue pipe or ventilation system remains unobstructed to allow harmful gases to escape safely.

2. Common Gas Geyser Issues and Troubleshooting

Even with regular maintenance, you may occasionally encounter issues with your gas geyser. Here are some common problems and their possible solutions:

• No Hot Water:
  • Check if the gas supply is turned on and sufficient.
  • Ensure the water pressure meets the geyser's requirements.
  • Inspect the ignition system for faults (a service technician can resolve this).
• Inconsistent Water Temperature:
  • Verify the gas pressure and flow rate settings.
  • Clean any blockages in the burner or heat exchanger.
• Pilot Light Won’t Stay Lit:
  • A faulty thermocouple or dirty burner may be the cause. These should be inspected and repaired by a professional.
• Unusual Noises:
  • Gurgling or hissing sounds may indicate sediment buildup in the system or air trapped in the pipes. Flushing the system can resolve this.

3. When to Call a Professional

Some issues should only be handled by a certified gas installer or technician. These include:

• Gas leaks or the smell of gas.
• Frequent or unexplained system shutdowns.
• Visible damage to the geyser or its components.

Regular care and prompt troubleshooting ensure your gas geyser continues to operate safely and efficiently, saving you money and providing reliable hot water.

Cost Considerations

The cost of a gas geyser system can vary depending on the type, size, and installation requirements. While the initial purchase and installation may seem higher compared to electric geysers, the long-term savings on electricity bills often outweigh these upfront costs.

• Initial Costs: This includes the price of the gas geyser itself and professional installation fees, which may vary based on the complexity of the setup.
• Operating Costs: Gas geysers are more energy-efficient than electric systems, reducing your monthly utility bills.
• Lifespan: With proper maintenance, a gas geyser can last up to 15 years or more, making it a worthwhile investment.

Considering the affordability of gas in South Africa and the efficiency of these systems, gas geysers are a cost-effective and sustainable choice for water heating.

The Gas Works – Gas Geyser Installations Cape Town

When it comes to gas geyser installation in Cape Town, The Gas Works combines technical expertise with a deep understanding of regulatory compliance. We specialise in professional installation services designed to ensure your gas geyser operates efficiently and safely.

With our team of registered installers, every project is completed in line with strict gas geyser installation regulations, giving you confidence in both the safety and reliability of your system. We assist clients in choosing the right size and type of gas geyser to match their needs, whether for a small household or a larger property with high water usage.

From initial setup to ongoing maintenance, we focus on practical, high-quality installations that deliver long-term results. If you’re looking to lower your energy costs and ensure uninterrupted hot water, a gas geyser is the solution—and The Gas Works is here to install it correctly the first time.

Contact us to find out more.