Hot Water Installation & Repair

Typically, expect it to last between 10 and 15 years. These are the factors that can make the difference;

• Type of System: Storage tank systems tend to have a shorter lifespan than tankless (instantaneous) systems. Storage tanks are more prone to internal corrosion from mineral buildup and pressure fluctuations, which can lead to leaks and malfunctions.

• Water Quality: Hard water, with high mineral content, can accelerate corrosion in storage tanks, reducing their lifespan. In areas with hard water, you might see the lifespan drop by a couple of years.

• Maintenance: Regular maintenance, like checking and replacing the anode rod (sacrificial component that attracts corrosion) in storage tanks, can extend the lifespan of your system.

A heat pump hot water system operates quite differently from traditional electric or gas hot water systems. 

1. Heat Absorption: Similar to a refrigerator in reverse, the heat pump hot water system uses a fan to draw in air from the surrounding environment. This air, even in moderate climates, contains heat energy.

2. Evaporator: The drawn-in air passes over an evaporator coil containing a refrigerant. This refrigerant is a special substance that can easily absorb heat and change state from a liquid to a gas. As the warm air passes over the evaporator coil, the refrigerant absorbs heat from the air, causing the air temperature to drop (feeling cool).

3. Compressor: The refrigerant in its gaseous state is then drawn into a compressor. The compressor acts like a pump, squeezing the refrigerant gas. This compression process significantly increases the pressure and temperature of the refrigerant.

4. Heat Transfer (Condenser): The high-pressure, high-temperature refrigerant gas travels through another heat exchanger called a condenser. This condenser is located near the bottom of the hot water tank. As the hot refrigerant gas flows through the condenser coils, it transfers its heat to the surrounding water in the tank, heating the water. The refrigerant itself cools down during this heat transfer process and condenses back into a liquid state.

5. Expansion Valve: The now-cooled and liquefied refrigerant passes through an expansion valve. This valve reduces the pressure on the refrigerant. As pressure drops, the refrigerant’s boiling point also decreases.

6. Cycle Repeats: The low-pressure, low-temperature refrigerant liquid then flows back to the evaporator coil, ready to absorb more heat from the surrounding air and repeat the cycle. This continuous cycle of heat absorption, compression, heat transfer, and expansion allows the heat pump hot water system to efficiently extract heat from the air and use it to heat the water in the tank.

The cost of a new residential hot water system in Brisbane can vary depending on several factors:

• Type of System:

  • Electric Storage: These are generally the most affordable option, with a typical range of $800 – $2,000 in Brisbane, including the unit and basic installation.
  • Electric Tankless: These can cost slightly more than electric storage systems, ranging from $1,200 – $2,500 for the unit and basic installation.
  • Gas Storage: Gas storage hot water heaters typically fall within the $1,000 – $3,000 range for the unit and basic installation in Brisbane This cost can be higher if you don’t already have a gas connection.
  • Gas Tankless: Gas tankless systems are generally the most expensive option, ranging from $2,000 – $4,000 for the unit and basic installation. Again, factor in any additional gas line installation costs if needed.
  • Heat Pump: Heat pump hot water systems are an energy-efficient option but tend to have a higher upfront cost. They can range from $3,000 – $7,000 for the unit and basic installation.

• Size of the System: Larger hot water systems naturally cost more than smaller ones. Consider the number of occupants in your house and hot water usage habits when choosing a size.

• Brand and Model: Different brands and models within the same type of system can have varying price points.

• Installation Complexity: A straightforward replacement of an existing system with similar connections will be less expensive than an installation requiring significant plumbing work or flue modifications (gas systems).

Here’s a general breakdown of installation costs to consider on top of the unit price:

• Basic Installation: This typically involves removing the old system, installing the new unit, and connecting it to existing plumbing and electrical lines. Costs can range from $200 to $600 depending on the complexity.
• Additional Plumbing Work: If your new system requires new pipe runs, additional shut-off valves, or modifications to existing pipework, expect to pay extra. This cost can vary depending on the labor and materials required.
• Electrical Work: For electric tankless systems or if your electrical panel needs upgrading to accommodate the new system, additional electrical work will be necessary, adding to the overall cost.
• Gas Line Installation: If you’re switching to a gas hot water system and don’t have an existing gas line, installing a new gas line can be a significant cost factor.

There are several important reasons to get your hot water system serviced regularly:

• Extends Lifespan: Regular maintenance helps prevent issues that can shorten the lifespan of your hot water system. Amalgamated Services can identify and address potential problems early on, like a failing anode rod or pressure build-up, preventing them from causing damage that necessitates a premature replacement.

• Improves Efficiency: Over time, sediment can build up inside the tank of a storage water heater. This sediment buildup can insulate the water, making it harder for the system to heat the water efficiently. Regular servicing helps remove this sediment, allowing your system to function at its optimal efficiency and potentially reducing your energy bills.

• Reduces Risk of Leaks and Breakdowns: Regular maintenance is crucial for catching minor issues before they turn into major problems. A serviced system is less likely to develop leaks or experience sudden breakdowns, saving you the inconvenience and potential cost of repairs.

• Safety: Some hot water system components, like the pressure relief valve, are vital safety features. Servicing ensures these components are functioning correctly, minimizing the risk of safety hazards like overheating or explosions.

• Maintains Warranty: Many hot water system warranties require proof of regular servicing to stay valid. Regular servicing ensures you can claim warranty benefits if needed.

Overall, servicing your hot water system is an investment that can save you money in the long run by extending its lifespan, improving efficiency, and reducing the risk of costly repairs and replacements. It also promotes safety and ensures your warranty remains valid.