What to Look for When Choosing a Heat Pump Hot Water System

Are you interested in installing a heat pump hot water system for your home, but don’t know where to start?

Hot water heat pumps are an efficient way of heating your water and have plenty of benefits that make them worth exploring.

At Gaschill Melbourne, we understand that not all heat pumps are the same. Choosing the right heat pump hot water system for your home is critical.

Here are a few things to consider when choosing the right heat pump hot water system:

What are hot water heat pumps?

Hot water heat pumps are water heating machines that pull heat from the outside air to heat water for your home or building. They work kind of like an air conditioner backwards but instead of pumping cool air out, they pump warm air inside.

This technology can replace old-fashioned water heaters and can save you money on your energy bill while reducing your carbon footprint. They’re super popular right now because they’re efficient, cost-effective, and eco-friendly. It’s like a win-win-win situation!

What should you consider when selecting a hot water heat pump?

When it comes to selecting the best heat pump hot water system for your home, there are several factors to consider. Here’s what you should look out for:

  1. Hot Water Demand & Unit Size

Knowing how much hot water is demanded in your home is essential when choosing a heat pump system. It affects the size of the unit and how much hot water it can generate. That way you can ensure you have enough hot water when you need it, instead of having it run out!

Hot Water Heat Pump Capacity

Ideal Household Size

200 litres

2-3 people  

300 litres  

4 or more people

For most households, a hot water heat pump with a capacity ranging between 200 and 300 litres is sufficient. A unit with a capacity of 200 litres is usually suitable for a family of two to three while a unit with a capacity of 300 litres is better for a family of four or more.[1]

  1. Climate and Efficiency

The performance of your hot water heat pumps can vary depending on the climate you live in. Generally, these systems perform more efficiently in warmer climates; however, there are models specifically designed for colder climates too.

Certain areas in Victoria may require frost protection for your heat pump which is easily provided with an electric booster element to keep it running effectively.

  1. Smart Features

Some hot water heat pumps come with a range of features such as built-in timers, temperature controls and energy saving settings, so it’s important to check which features are available in the unit that you choose.

Here are some examples of features that you may find useful.

Smart Hot Water Heat Pump Features


Wi-Fi Connectivity

Allows remote control using a smartphone app or voice control.

Smart Scheduling

Heat pumps can be scheduled to operate at specific times of the day or week based on usage pattern.

Adaptive Temperature Control

Adjusts automatically to provide the right amount of heating or cooling based on usage patterns and preferences.


Heat pump detects when you are leaving or arriving home and adjusts the temperature settings accordingly.

Energy Monitoring

Helps track and optimise energy usage for maximum savings.

Smart Home Integration

Integrations with smart home platforms, such as Amazon Alexa, Google Home or Apple HomeKit, allowing for control of the heat pump and other smart devices in the home.

  1. Installation Area & Water Supply

Hot water heat pumps need to be installed in an area that is not too hot or cold, as it affects the efficiency of the unit. When selecting a heat pump be sure you have access to a place where the unit will have plenty of ventilation and exposure to outside air.

They also require an electrical supply and an adequate water supply for operation. Be sure to check whether these are available in your home before purchasing a unit.

  1. Brand and warranty

Check the brand and warranty of the unit before purchasing. Read reviews and find out what benefits there are for you. A reputable brand usually offers a longer warranty period, which will provide you with peace of mind in case of any unforeseen issues.

Some popular ones in Victoria include Sanden, Chromagen and Evo-heat but do speak to your local heat pump expert for more information on what’s best for you.

  1. Initial and Maintenance Costs

Hot water heat pumps have a higher initial cost compared to traditional water heaters and range from about $2000 -$4000. That said, there are government rebates that may apply and this cost is usually offset by the long-term savings in energy bills.

Most households will find that hot water heat pumps start to pay for themselves in about 5-10 years saving you thousands in the long run. [2]

How To Select The Right Technicians For Your Hot Water Heat Pump Installation

After selecting the right heat pump hot water system for your home, you’ll need to hire a reliable technician to install it.

You don’t want just anyone installing this type of system in your home – make sure they are qualified and experienced in hot water heat pump installation.

Here are three things to consider when choosing the right technician to install your hot water heat pump:

Expertise: Make sure you hire a technician that has extensive experience in installing hot water heat pumps. Ask for references and check their credentials before making a decision.

Certification: Ensure your technician is certified by an accredited organisation such as the Australian Refrigeration Council, the Australian Department of Environment and Energy, or a similar organisation in your local area. A certified technician will be able to install your hot water heat pump correctly and safely, ensuring it works efficiently and reduces your energy costs over time.

Price: Compare quotes from different technicians to find the best value for money. However, don’t compromise on quality of service – try to find a balance between cost and quality.

Gaschill- Your Reliable Local Heat Pump Technicians

At Gaschill Melbourne, we’re your go-to company for all your hot water heat pump installation needs. We only employ certified technicians who are experienced in hot water heat pump installation and troubleshooting, so you can rest assured that your system is installed safely and correctly.

We provide a comprehensive range of services, including the installation of all types of hot water heat pumps and maintenance services. We have years of experience in this field and use the latest technology to provide you with high-quality workmanship.

If you’re looking for reliable hot water heat pump installation services in Melbourne, contact us today! Our friendly staff will be more than happy to assist you with all your hot water heat pump needs.