What Homeowners Need to Know About Heat Pumps

Winter Is Coming

Not only to fictional TV kingdoms, but also to Tasmania. Heat pumps are the most efficient and popular electric heating solution for dealing with our Launceston winters.

Unlike traditional heaters, heat pumps don’t actually produce heat themselves. They use refrigeration gases and compressors to move heat from one place to another. In winter, they move heat from outside into your home; in summer, they reverse the process to cool it down.

This efficiency advantage is why a heat pump is cheaper to run than conventional electric heating. Although they run on electricity, they produce more energy (in the form of heat) than they consume.

Why Homeowners Choose Heat Pumps

1. Energy Efficiency. Heat pumps transfer rather than generate heat, often producing 2 to 4 times the heating energy relative to the power they use. That translates to noticeable savings on your electricity bill.
2. Heating & Cooling in One Unit. A single system keeps your home warm in winter and cool in summer. For many Tasmanian households, that means replacing two appliances with one streamlined system.
3. Environmentally Friendly. By using electricity instead of combustion, and tapping into renewable energy from the grid, heat pumps reduce your home’s carbon footprint without sacrificing comfort.
4. Cleaner Indoor Air. With built-in filters and advanced thermostats, heat pumps not only manage temperature but also help keep the air inside your home fresh and clean.

What to Check Before Installing a Heat Pump

Before you install a heat pump, a few key things should be checked to ensure performance and safety:

Mains Cables

The size of your home’s mains cables needs to be assessed. Undersized cables may not be able to handle the extra load, especially if you run your heat pump alongside other major appliances.

Switchboard Space

Is there room for an additional main switch on your existing switchboard? This is a common bottleneck in older homes and might require an upgrade.

Heat Pump Size

The system’s capacity must match the size and insulation level of the room or area it’s meant to heat. Undersized units will struggle; oversized ones may short-cycle and waste energy.

Indoor/Outdoor Unit Placement

The location of both units plays a big role in performance:

• The indoor unit needs to be placed where heat (or cool air) distributes evenly.
• The outdoor unit should ideally go where it receives early morning sun, warmer air in the morning helps it start efficiently.

Sometimes the optimal indoor and outdoor locations are at odds. The units should be as close together as possible to reduce the length of piping. Finding the right balance is where a professional installer’s experience comes in.

Cost

Heat pump installs are often sold as a fixed price package, with retailers competing to offer the lowest price.  As you might expect, there are a number of potential problems with an installation where the lowest price is the main consideration.

Don’t Get Caught Out by Cheap Installations

Heat pump installations are often sold as fixed-price packages. It’s tempting to go with the lowest quote, but this can lead to long-term headaches:

• Installers working to tight budgets may place units where they’re easiest to install, not where they’ll perform best.
• To cut costs, they might install the shortest pipe runs, even if that sacrifices heating effectiveness.
• Worse still, if your mains cables are small, they may quietly add a load-limiting breaker. This device trips if total household load exceeds a certain limit (e.g. 40 amps).

The result? You might not be able to run your heat pump and oven at the same time, or even boil the kettle without triggering a trip. Constantly having to reset your switchboard is not what anyone wants.

The best way is to get an on-site inspection and a personalised quote that considers your home’s design and how your household uses power. That way, you’ll avoid surprises and get a system that works well year-round.