The Ultimate Guide To Installing A Hot Water System

December 27, 2022

Installing the correct type of water heater for your home is essential. It must sufficiently supply hot water in an energy-efficient way to help save your finances and resources. These heaters come in different capacities and sizes, and from various energy sources. Some models may provide an in-tank or on-demand supply of stored water.

This article is an all-inclusive guide to water heaters. Moreover, it’ll provide insight into the aspects to consider when purchasing one.

Types Of Water Heaters

To get the best hot water system for your home, you should learn about its different types, which include:

  • Geothermal hot water system
  • Heat pump hot water system
  • Gas hot water system
  • Electric hot water system
  • Solar hot water system

Since their energy source is readily available, gas, electric, and solar hot water systems are the most commonly used types. However, if you live in an area where geothermal heat energy is available, the geothermal hot water system would be a great option, although uncommon. If a gas hot water system is the most suitable option for your needs, contact reliable Gas Hot Water Services across Sydney or your locality and have one installed in your home.

Whichever design you choose, it’s essential to understand its advantages and disadvantages. The following section will cover the different water heater systems’ energy consumption and the financial implications each may have.

Energy Requirements

Different hot water systems have varying energy consumption rates, influenced by the model and the type of energy used.

  • Solar Hot Water System

It’s considered the most cost-effective water heating system. It contains a hot water tank and a solar panel commonly installed on the rooftop to tap solar energy. So, rather than using electricity, you’ll use the sun’s power to heat your water, saving your electricity bills.

Solar water heating systems are independent; you only need initial installation costs. It makes them a cheaper alternative since it ensures a constant hot water supply without escalating your power bills. Moreover, they don’t need a complete solar installation in your house.

Furthermore, a solar water heating system is environment-friendly. Therefore, installing one for your household can increase your home’s value just in case you decide to sell it.

  • Gas Versus Electric Hot Water System

Choosing between electric- and gas-powered hot water systems can be confusing, especially considering the overall energy costs. However, gas systems are considered more energy-efficient than electric ones. With gas, you’ll be able to heat your water at a relatively cheaper cost compared to using electricity. Moreover, if you choose a system that runs entirely on gas, you may get rebates that could help you save more.

In a world where sustainability is continuously being championed, you’d want to go for solar hot water systems, given that the sun’s energy is inexhaustible. Gas, on the contrary, is a non-renewable source of energy.

Factors To Consider Before Buying

There are several aspects to think about before installing a hot water system in your home. These include:

  • Sizing For Tank Water Heaters

Tank water heaters are typical for residential buildings. It's essential to determine the number of people who regularly use hot water in the house before buying a hot water system. Most residential tank water heater capacities range from 20 to 80 gallons. For instance, a home with more than five people may need a 60-gallon hot water system.

  • Sizing For Tankless Water Heaters

Since there’s no storage tank, tankless water heaters are sized by the gallons per minute (GPM) of water they can deliver. The average temperature needed to heat your water may also be a determinant. Therefore, consult your plumber to estimate the required amount for your household and recommend an appropriate heater.

  • Warranty

Hot water heating systems with lengthy warranty periods cost more than those with shorter periods. Most warranties may last between six and 12 years, but you may also get lifetime ones. So, choose one that fits your budget.

It’s good to take your time when purchasing a hot water system. Thoroughly assess the highlighted factors and ensure you get every bit right. Otherwise, you may end up with an inefficient system, which will be a cause of daily disappointment. In worst-case scenarios, you may have to replace the entire system, which can cause a dent in your bank account.


Installing a hot water heating system requires a comprehensive analysis of what your home needs. But, first, you need to understand the various types and their energy requirements, then consider whether you need a tankless or a tanked system. Water heating systems with lengthy warranty periods are dependable yet more expensive. All in all, your home needs will be the ultimate determinant for your final choice.


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