Selecting a hot water system requires care and consideration. 

Not all systems are created equal, and needs vary depending on both preferences and requirements. For example, it’s essential to consider the size of the system, energy demands, power sources and short and long-term costs. 

This article will help you choose a hot water system that works for you. 

Types of hot water systems

Next, you need to think about the energy source for your hot water system. Your choices typically include electricity, gas, solar, and heat pumps. 

Each of these has its advantages and potential drawbacks. For example, while solar energy is a greener option, the initial setup costs can be higher. Gas boilers remain the most popular hydronic boilers in Australia. 

However, not all properties are connected to the natural gas grid. Weighing up each energy source’s strengths and weaknesses is essential to decide which best aligns with your budget and values.

Sizing your system 

One of the first things you’ll need to consider when choosing a hot water system is its size. Your system's size should align with the hot water needs of your household. This includes both the power output of the boiler and the size of the hot water tank. 

A system that's too small may not meet high demand, while one that's too large can lead to excess energy usage and higher costs. Moreover, if the hot water tank is too small, you’ll likely run out of water in peak hours. 

Determining the right size requires considering the number of occupants in your home, the number of hot water outlets, and your household's peak hot water usage times.

While you can perform some of your own calculations, consider consulting a licensed plumber to gauge your requirements accurately.

Storage tank or instant water heater?

Hot water systems come in two main types: storage and continuous flow (also known as instant) systems.

Storage systems heat water and store it for later use, while continuous flow systems heat water instantly as it's needed. 

Each of these system types has its pros and cons. For example, while a continuous flow system guarantees hot water whenever you need it, it may struggle to supply multiple outlets at once. 

Understanding your household's hot water usage pattern can help you decide between storage and continuous flow systems.

Checking the energy efficiency

Another crucial aspect to consider is the energy efficiency of the hot water system. 

Higher energy efficiency can lead to lower operating costs in the long run, even if the initial purchase cost is higher. New high-end boilers will reduce energy bills in the long run but will come at higher upfront costs. 

Consider running costs

While the initial purchase price of a hot water system is undoubtedly a key consideration, it's also important to think about the long-term costs. 

These can include ongoing energy costs, maintenance expenses, potential repair costs, and the system's lifespan. Sometimes, a system with a lower purchase price but higher operational costs can be more expensive in the long run.

Rebates and incentives

Transitioning to an energy-efficient hot water system may qualify for rebates and incentives. 

These incentives encourage sustainable practices and vary by state or territory. Familiarise yourself with options in your region, like the Small-scale Renewable Energy Scheme (SRES). 

A professional plumber can guide these benefits, helping to optimise the value of your hot water system upgrade.

Summary

The process of choosing a hot water system involves carefully reviewing the above factors to determine your precise needs, requirements and preferences. 

To select the best hot water system for your home, speak to a licensed plumber about your hot water system.