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How Tankless Water Heaters Function

Tankless water heaters, which heat water as needed, provide immediate water flow without the need for storage, unlike conventional systems that continuously reheat stored water. When you switch on the hot water tap, cold water enters the tankless heater and passes through a heat exchanger equipped with high-powered elements.

As water swiftly passes by the elements, it reaches the desired temperature, showcasing the efficiency of tankless water heaters.

The system quickly brings the water to the set temperature, with direct flow to the outlet and onwards throughout the pipes. Tankless heaters provide a continuous hot water supply, ensuring there is no shortage as long as the tap remains open.

Tankless units, both electric and gas models, are versatile, operating efficiently on either electricity or natural gas. Their high efficiency makes them especially suitable for the demands of larger households.

Electric tankless water heaters require suitable wiring, with power needs often surpassing 150 amps. Gas water heaters, on the other hand, can be tied to an external gas line, boasting instant flow rates exceeding 26 litres per minute. Gas burners in these systems ensure efficient heating of water as it travels through a sealed heat exchanger before immediate delivery to fixtures.

Heat Exchanger and Water Flow Technology

The heat exchanger is the key component providing instantaneous hot water inside a tankless water heater.

At this juncture, incoming cold water makes immediate contact with the heating elements, warming up quickly. Constructed using durable copper or stainless steel, the heat exchanger encases the heating element like electric rods or a gas burner as the water flows through unit while being kept completely separate.

As water enters directly from the main lines, bypassing traditional systems, it’s important to understand tankless water heaters, which have built-in flow sensors to detect flow rates in litres per minute. These sensors ensure the system produces just the right amount of heat to warm the water as it flows through the heat exchanger.

This information is relayed to a digital control board, triggering the heating elements. This rapid and accurate heating provides a continuous supply of hot water whenever needed.

Tankless heat exchangers are exceptionally efficient, avoiding the energy-intensive heating cycles of storage tank heaters and saving up to 34% energy when not in use. They use energy solely when hot water is needed, instantly providing it and deactivating the heating elements once taps are turned off, thus maximising energy savings.

Activation Sensors and Temperature Controls

Tankless water heaters employ an advanced flow sensor to gauge the water’s flow rate through the system. Upon water entry, these sensors relay information on the flow rate, measured in litres per minute, to the internal microprocessors.

The control board analyses this data and activates heating elements accordingly to warm the water to the correct preset temperature. Built-in thermostats carefully regulate the heating process to avoid temperature fluctuations and ensure output water is heated precisely on demand.

Users can adjust desired output temperatures via digital controls on their tankless unit. However temperatures should not exceed 49°C to avoid scalding risks. Lower temperatures around 46°C are ideal for comfort and safety during showers and baths.

By continually monitoring water flow, and intelligently governing activation of heating elements, tankless systems demonstrate how do tankless water systems maintain complete control over water temperature at all times. This allows endless hot water to be safely delivered when hot taps are open, at the precise, comfortable level you want.

Benefits of Tankless Water Heating

Choosing tankless water heaters presents multiple benefits for Mascot residents planning to enhance their water heating systems:

  • A constant stream of hot water ensuring supply never runs dry, perfect for active households, also curtailing cold water mishaps associated with storage system faults
  • Substantial energy savings, with up to 50% reductions in water heating costs by sidestepping standby losses from storage tanks
  • Long lifespan exceeding 20 years with easy maintenance
  • Compact, wall mounted design maximises living space by removing bulky tanks
  • Consistent water temperatures and pressure thanks to smart sensors and flow controls
  • Reduced risk of leaks and flooding due to having fewer components compared to traditional systems
  • Higher resale value from upgraded, eco-friendly technology

The advantages of tankless systems, such as unlimited access and the ability to service multiple taps simultaneously, surpass those of storage water systems, aligning with the dynamic lifestyles in Mascot. Consultation with our water heating specialists provides clarity on which system is optimal for your household needs.

Continuous and Efficient Hot Water Supply

A major benefit of tankless systems compared to tank water heaters is their ability to meet high water demands with a continuous, unlimited supply. In contrast, traditional storage tanks have a limited capacity, leading to inconvenient interruptions in hot water availability such as unexpected cold showers.

In contrast, tankless heaters utilise advanced flow sensors which constantly monitor incoming water demand. Built-in heating elements then modulate their power to instantly raise water temperatures as needed the moment they supply hot water to a turned-on tap. This enables an uninterrupted flow of hot water for high usage households.

Tankless systems intelligently deliver the right amount of hot water whether multiple taps are used concurrently or extended showers are taken. For busy families and homes needing a sizable amount hot water, the continuous flow hot water heating of tankless units is a major drawcard over conventional heaters.

Energy and Cost Savings

One of the biggest advantages of tankless water heaters is cost savings. They only heat water when the tap turned on, so tankless systems avoid the standby energy losses associated with storage tank water heaters that constantly reheat water. This can reduce water heating bills by 30-50%.

Tankless heaters have a lifespan of over 20 years, typically outlasting traditional units by a decade. Due to fewer mechanical parts and easy maintenance, they also offer lower operational costs throughout their longer lifespan.

Tankless water heating is a valuable option for cost-conscious homeowners aiming to reduce utility bills and update their appliances. Consult our water heating specialists to understand how much cost up front can translate into savings by going tankless.

Space Savings and Longer Lifespan

One of the biggest advantages of tankless water heaters is their compact, wall mounted design. Unlike bulky tank heater systems which occupy ample floor space, tankless units take up minimal room. This allows installation in tight spaces and frees up living areas.

By eliminating the water tank altogether, tankless heaters maximise space savings inside and outside the home. Their sleek, low profile models mount conveniently on walls and maximise storage capacity.

A tankless system can enjoy exceptional longevity compared to traditional heaters. While storage tank units typically last 10-15 years, a tankless heater can function effectively for over 20 years with proper maintenance. With fewer components and easy access for servicing, operational costs are lower across their extended lifespan.

For Mascot homeowners seeking to reclaim space and upgrade appliances to more durable, long lasting options - tankless water heating checks all boxes.

Considerations for Installation and Maintenance

Several important considerations must be addressed when installing an instant hot water system in your Mascot home. To ensure safe and efficient performance of your tankless unit, it is critical to have correct installation by a licenced professional plumber.

Our expert plumbers take care of necessary considerations like inspecting your gas line or electric panel to guarantee sufficient power, calculating accurate sizing for your hot water heater in your household, and positioning the system close enough to fixtures to prevent heat loss from pipes. This optimisation prevents temperature or pressure fluctuations.

Simple maintenance like annual flushing removes mineral deposits from the heat exchanger, maximising efficiency. Units, especially in areas with hard water, must be kept free of dust and debris which can obstruct airflow. With minor servicing, your tankless system should provide endless hot water for over 20 years.

Consult our water heating specialists on the specifics around installing tankless systems. We tailor solutions to your home’s layout and requirements, simplifying the transition for seamless, uninterrupted comfort.

Professional Installation Requirements

Correct installation is essential for the safe and efficient performance of tankless water heaters. We highly recommend using a licenced, professional plumber for installing any tankless unit.

Our expert plumbers manage key considerations including how best to supply water your household uses efficiently:

  • Inspecting gas lines and electrical panels to ensure sufficient power supply
  • calculating accurate size and flow rates for your water heater your household usage
  • Positioning the system close enough to fixtures to prevent heat loss from pipes

This helps optimise how your tankless heaters work and prevent temperature/pressure fluctuations during operation.

Simple annual maintenance like flushing mineral deposits from the heat exchanger maximises efficiency. Units should also be kept dust-free and debris-clear for proper airflow.

With professional installation and routine maintenance, your tankless hot water system can reliably deliver limitless hot water for two decades.

Ventilation and Gas Line Needs

Gas-fired tankless water heaters require proper ventilation to operate safely and efficiently. When installed indoors, the units must connect to ducting leading outside that allows for the removal of exhaust gases and supply of fresh air for combustion.

Our professional plumbers always ensure correct ventilation procedures are followed. Byproduct exhaust gases containing carbon monoxide and nitrogen dioxide are vented away from the home, while fresh air intakes prevent negative pressure for healthy combustion.

Adequate gas supply lines must also be confirmed during installation. Most high performance gas tankless water heaters need a half-inch pipe with suitable gas pressure to support an input rate exceeding 150,000 BTU. Attempting operation on undersized, weak gas lines will prevent reaching optimal temperatures.

Failing to properly install ventilation and inspect gas line compatibility carries risks of hazardous gas leakage or explosions. Our licenced experts handle all intricate details for safely optimising your gas tankless water heater during installation.

Routine Cleaning and Maintenance

Recommended yearly maintenance includes flushing the unit to clear mineral build-up and checking inlet water filters every six months, helping to sustain efficiency and prolong your heater’s lifespan.

Keeping the exterior of your tankless unit clear of dust, lint and debris is also important. This allows proper airflow and ventilation to prevent overheating. Outdoor tankless heaters should have debris like leaves cleaned from around the unit after storms. A soft brush and vacuum allow safe cleaning.

With minor annual servicing to flush deposits, replace filters and clear vents/airflow paths, a professionally installed gas or electric tankless hot water system can reliably deliver endless hot water to your Mascot home for over 20 years.

Comparing Tankless to Traditional Water Heaters

In deciding between tankless and traditional tank water heaters for your Mascot home, it’s important to consider the advantages and disadvantages of each option:

Tankless Water Heaters

  • provide continuous, unlimited hot water as it flows through
  • Extremely energy efficient, saving 30-50% on bills
  • Compact, space saving wall mounted design
  • Long lifespan of over 20 years
  • Higher upfront costs around $2000+ installed
  • Require larger gas lines or upgraded electrical panels
  • Output can decrease in extremely cold weather

Traditional Storage Tank Systems

  • Lower upfront cost around $1000 installed
  • Easy to install with standard gas/electrical supplies
  • Bulky tanks occupy more space
  • Limited hot water capacity from storage tank
  • Shorter lifespan of 10-15 years
  • Higher long term energy costs from standby losses

Get in touch with our water heating specialists to discuss whether a tankless or traditional water heater better suits your household’s needs and budget.

When to Choose a Tankless Hot Water System

Discovering what tankless water heaters can do reveal they are best suited for homes with high or fluctuating hot water demand.

Large households of 4+ occupants running multiple showers, baths, sinks etc. simultaneously will benefit from the continuous flow. The unlimited supply prevents the run out hot water at peak times.

Homeowners looking to reclaim floor space by removing bulky tanks should also consider tankless units and their wall mounted, compact sizing. Additionally, those wanting to cut energy bills longer-term will see great savings from the efficiency of tankless systems not constantly reheating stored water.

While requiring higher upfront costs, properly installed and maintained tankless heaters reliably output endless hot water for 20+ years. Consult our water heating specialists to determine if transitioning to an on-demand tankless system aligns with your households budget, space and usage needs.

Conclusion and Contact Information

Tankless hot water systems provide continuous, unlimited hot water by instantly heating water as it flows through the system. This on-demand technology is perfect for busy Mascot households with fluctuating or high hot water usage.

By ditching bulky storage tanks and avoiding standby heat losses, tankless units maximise energy savings of 30-50% on water heating bills. Their sleek, wall mounted design also frees up floorspace. With easy maintenance, lifespan exceeds 20 years.

Contact Mascot Plumbing on 1300 349 338 or email [email protected] to see if a tankless hot water system is right for you. Our licenced specialists ensure professional installations for peak performance and durability, giving you peace of mind for the future.

News & Information

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