Gas water heaters account for almost half of all water heaters in Australia. They are also widely used in New Zealand. When the phrase “gas water heaters” is mentioned, three primary product types are covered: solar water heaters with gas boosting, instantaneous or continuous flow gas water heaters, and gas storage water heaters.
A gas burner is positioned beneath the storage tank to heat water in gas storage hot water systems. Gas storage water heaters often have a light flame that continuously burns. This flame can light the main burner when necessary. The heat eventually gets transported to the cylinder’s bottom from the burner.
Next, cold water is pumped into the tank, where it settles to the bottom and heats up. The water then goes to the top of the tank as it warms. Finally, it pours into the hot water piping when the water tap is switched on.
The water temperature is usually controlled by an adjustable thermostat. The pilot flame lights the main burner when the water at the bottom of the tank’s temperature falls below a certain level. This keeps the water hot at all times. Moreover, the pilot flame’s energy is used to warm the tank water., which means no energy goes to waste.
Water goes out of the pressure relief valve and through a pipe when water pressure is too high. A passage runs through the tank’s centre, allowing fumes and hot air to pass.
Gas storage hot water systems are available in a variety of tank sizes. These sizes hold as low as 90 litres to as high as 300 litres. Certain systems have a mechanism to recycle hot gases from the passage along the tank’s outside to maximise heat transmission. It also makes the process more efficient.
Various models of gas storage hot water systems are available in the market. Of course, each unit has unique characteristics. Consider the following points to determine the system that is best for you and your family.
How energy-efficient is the unit?
Energy-efficient units are built with improved heat transfer and insulation in mind. Therefore, the less gas used to heat the water, the more efficient the device. You may check the energy efficiency of any equipment by looking at its energy rating label.
What tank size do you need?
How much water do you need for your storage tank? The size of your tank will heavily depend on this. Also, remember to consider the available space in your home. The number of people in your family that utilise the hot water system affects this aspect as well.
Typically, gas storage hot water systems come in 90L, 135L, and 170L sizes. To put that into perspective, 170L is the most suggested for families.
What kinds of gas are available near you?
What kind of gas do you have easy access to? For example, LPG and NG are the most common energy sources for Western Australian properties. NG is available throughout many Perth metropolitan region suburbs. On the other hand, LPG is commonly found in Perth Hills and nearby locations unreached by the gas network.
In Newcastle, LPG and NG are also easily available to residential and commercial property owners. Note that all NSW gas installations have to meet the requirement of the Gas and Electricity (Consumer Safety) Act of 2017 and the Gas and Electricity (Consumer Safety) Regulation of 2018.
Even though installing a gas storage hot water system is normally not a big issue in your household, it does have its pros and cons. Understanding these advantages and disadvantages will assist you in comparing systems and deciding which one to buy.
What are the advantages of gas storage hot water systems?
1. They heat and reheat quickly and easily
For example, a 170L tank may be heated in roughly an hour using a gas storage hot water system. The time it takes to reheat a tank of water is substantially faster than that of an electric heater. This makes it ideal for a large family with around 4-5 members.
2. Hot water systems are quite energy-efficient
Other types of hot water systems are not as energy-efficient as gas storage hot water systems. This is especially evident when newer 4- or 5-star units are purchased.
3. They can function during power outages
As this type of hot water system works on gas rather than electricity, it will keep functioning properly even during power outages.
4. They are eco-friendly
Gas storage hot water systems emit minimal greenhouse gases. This is beneficial to the environment and is a huge plus for eco-friendly households.
What are the disadvantages of gas storage hot water systems?
1. They are quite expensive upfront
Gas models are more expensive up front, even though a gas storage hot water system will certainly reduce your energy expenditures in the long run. These gas models can also be pricier in terms of installation and upkeep.
2. They cost more to operate
When NG is unavailable, LPG is a good substitute; nevertheless, utilising LPG can increase operational expenses because LPG bottles are more pricey.
3. They need proper placement for required ventilation
If you install a gas storage hot water system indoors, you need to select a suitable location for proper ventilation. Professionals note that the best location for installing an indoor model is one that conforms with all regulations.
Want professionals to install your gas storage hot water system? Hogan Hot Water & Air Conditioning can get the job done right! With over 20 years of expertise, our hot water heater head technician is a licensed electrician, gas fitter, plumber, and refrigeration mechanic.
At Hogan Hot Water & Air Conditioning, we can maintain, repair, install, and replace hot water systems and air conditioners. We generally operate around Newcastle, Lake Macquarie, Maitland, and the Central Coast.
Hogan Hot Water & Air Conditioning will happily offer you professional advice. We can also give you free quotes. Call us immediately at 0488 029 618, or use our contact form to reach us for more information today!