Electric hot water systems are usually more affordable upfront, while gas systems heat faster and suit households with higher daily usage. The best choice depends on your budget, hot water habits, gas availability and the size of your home.
Electric systems are cheaper upfront. Gas systems heat faster and suit high-usage households. Here’s how to choose the best hot water system for your Brisbane home.
You’ll learn:
Feature | Electric Hot Water | Gas Hot Water (incl. LPG) |
Upfront Cost | Lower | Higher |
Running Costs | Medium–High (tariff dependent) | Lower (varies by usage) |
Heating Speed | Slower | Fast |
Best For | Small households | Medium–large families |
Energy Efficiency | Moderate | High |
Water Supply Consistency | Storage tanks only | Storage + instant options |
Works Without Mains Gas? | Yes | Yes (via LPG) |
Installation Complexity | Simple | Moderate (gas compliance required) |
If your choice depends on pricing, see our full guide about hot water system prices in Brisbane.
Electric hot water systems remain one of the most common options across Brisbane, especially in older homes and apartments.
Why homeowners choose electric hot water:
Electric systems generally offer the most affordable purchase and installation price.
No gas line or LPG bottles required, making installation straightforward.
For homes with consistent morning or evening shower routines, electric storage systems perform well.
Singles, couples and small families often find electric storage systems the most practical and budget-friendly choice.
If your electric unit has suddenly stopped heating and you have no hot water, our troubleshooting guide about hot water troubleshooting guide covers simple checks before booking a repair.
If you’re consistently running out of hot water, you may need a larger tank or a different system type. Our main hot water installation guide explains how to choose the right size.
Gas hot water systems heat water faster and can offer long-term efficiency — especially when paired with instant (continuous-flow) units.
Why Brisbane homeowners choose gas:
Gas systems reheat water quickly, which is ideal for families or busy households.
Depending on hot water usage, gas can be more cost-effective than electricity.
Higher daily demand = better performance from gas systems.
Endless hot water, no storage tank and consistent temperature control.
Many Brisbane suburbs use LPG bottles and achieve the same performance.
If your old tank is hot water system leaking, switching to a gas or instant unit may be a good time to upgrade.
Instant (continuous flow) systems heat water only when needed — meaning you never run out.
Benefits of instant gas systems:
We explain how these systems work in our post about instant hot water systems and how continuous flow units work.
Instant systems are ideal when:
Hot water system pricing varies widely depending on system type, size, installation needs and the condition of your existing setup. While exact costs depend on your home, here’s how pricing typically compares across Brisbane.
For more details, see our post about hot water system prices in Brisbane.
Here’s how electric, gas and instant systems generally suit different Brisbane households.
Electric hot water
Affordable upfront, simple installation and reliable for smaller daily usage.
Gas storage hot water
Faster heat recovery and efficient performance during peak times.
Instant gas hot water
Endless supply and excellent efficiency for multiple showers and appliances.
If your system is old, rusty or hot water system leaking, many homeowners choose to upgrade to gas or instant systems for better long-term performance. However, we always check whether hot water repair is still a safe and practical option.
Instant gas (continuous flow)
Low energy waste, strong efficiency and no tank failures.
Off-peak tariffs can reduce running costs for some homes.
If your street doesn’t have natural gas, LPG is still a strong alternative.
Gas units may require ventilation and specific placement.
High-flow households sometimes benefit from multiple instant systems.
Electric tanks require more space; instant systems are compact.
You don’t need to choose alone.
When we inspect your current system, we consider:
We then help you compare the most practical and budget-friendly options for your home.
If you’re unsure which system suits your Brisbane home, we can compare both options on-site and explain all costs involved before installation.
Contact us and we’ll help you choose a hot water system that fits your home, family and budget — and install it safely to Queensland standards.
Electric storage systems are generally the most affordable upfront.
Gas systems — especially instant (continuous flow) units — often deliver lower running costs for many Brisbane households.
Yes. Electric storage tanks typically take longer to reheat compared to gas systems.
Yes. Homes without natural gas can use LPG bottles for the same performance.
Yes. This may require additional pipework or a gas line setup.
We explain what’s needed once we inspect your current installation.
If you suspect a hidden leak, turn off your water supply and call a licensed plumber.
At CK Plumbing, we provide same-day leak detection and repairs across Holland Park, Mount Gravatt, Coorparoo, and Brisbane’s Southside.
CK Plumbing helps Brisbane homeowners find and fix hidden water leaks — saving thousands of litres and preventing costly property damage.
