Installing New Hot Water Systems, Gas & Solar Hot Water

If you’re not sure where to start with a Hot Water System, We’ve put together a small guide & table to help you. 

Here’s a simple breakdown of the differences between a normal (electric) hot water system, gas, and solar:

🔌 Electric Hot Water Systems (Standard/“Normal”)

• How it works: Uses electricity to heat water in a tank (storage) or on-demand (instant).

• Pros:

  • Lower upfront cost.

  • Easy to install, especially in homes already wired for it.

• Cons:

  • Higher running costs compared to gas or solar.

  • Slower recovery time after heavy use.

  • Less eco-friendly.

🔥 Gas Hot Water Systems

• How it works: Uses natural gas or LPG to heat water. Comes in storage and continuous flow (instant).

• Pros:

  • Heats water faster than electric.

  • Cheaper to run if you’re connected to mains gas.

  • Works during power outages.

• Cons:

  • Slightly more expensive to install.

  • If using LPG, gas bottle refills can be inconvenient.

  • Emits more carbon than solar.

☀️ Solar Hot Water Systems

• How it works: Uses solar panels (collectors) to heat water, stored in a tank. Often has an electric or gas booster for cloudy days.

• Pros:

  • Very low running costs.

  • Eco-friendly and sustainable.

  • Government rebates may apply (in Australia).

• Cons:

  • Higher upfront cost.

  • Requires roof space and good sunlight exposure.

  • Performance can drop in winter or overcast weather.