Choosing the Right Hot Water System in 2024: Electric, Gas, Solar or Heat Pump?

Choosing the right hot water system is not just about replacing the old unit with whatever fits in the same spot. The best system depends on your household size, energy source, budget, available space, running cost goals and how much hot water your home uses each day.

For Brisbane, Gold Coast and South East Queensland homes, the main options are electric storage, heat pump, gas storage, instant gas and solar hot water. Each has a different upfront cost, running cost profile, installation requirement and ideal use case.

JR Gas & Water can help compare heat pump hot water systems, electric hot water systems, gas storage hot water systems, instant gas hot water systems and solar hot water systems based on your home, not just the product label.

Quick Answer

The best hot water system for most homes depends on the balance between upfront price, running cost, available energy source and household demand.

Electric storage is usually the simplest and cheapest upfront replacement. Heat pumps are often the best long-term upgrade for suitable Brisbane and Gold Coast homes wanting lower electricity use than standard electric storage. Instant gas can suit homes with suitable gas supply and high hot water demand. Gas storage can suit customers replacing an existing gas storage unit. Solar hot water can work well for suitable homes with good roof space, solar access and booster planning.

If your current system is leaking, unreliable or running out of hot water, JR Gas & Water can help assess whether repair, like-for-like replacement or a system upgrade is the better option through hot water repairs and servicing.

The Main Hot Water System Types

Most homes compare five main hot water options:

Electric storage
Heat pump
Gas storage
Instant gas
Solar hot water

There is no single best system for every home. A small townhouse, large family home, acreage property and coastal Gold Coast home may all need different recommendations.

1. Electric Hot Water Systems

Electric storage hot water systems use an electric element to heat water inside an insulated storage tank.

They are one of the most common replacement options because they are familiar, widely available and often simpler to install than more complex systems.

Best Suited To

Electric hot water systems may suit:

Small to medium households
Homes wanting a straightforward replacement
Properties without gas supply
Budget-focused replacements
Units and townhouses
Homes where heat pump placement is difficult
Customers replacing an existing electric storage unit

What They Do Well

Electric storage systems are practical and simple.

Key advantages include:

Lower upfront cost than many alternatives
Familiar storage tank design
Wide size range
Indoor and outdoor model options, depending on unit
Suitable for many homes without gas
Can be a simple replacement when the existing setup is electric

Things to Consider

Standard electric storage systems can have higher running costs than some alternatives, especially for larger households or high-use homes.

Consider:

Tank size
Household hot water demand
Tariff setup
Electrical supply
Available installation space
Water pressure and valve condition
Whether a heat pump would be better long term

For many older electric storage replacements, it is worth comparing electric hot water systems against heat pump hot water systems before making a final decision.

2. Heat Pump Hot Water Systems

Heat pump hot water systems use heat from the surrounding air to help heat water. They still use electricity, but they can use significantly less electricity than standard electric storage when selected and installed correctly.

For many Brisbane and Gold Coast homes, heat pumps are one of the strongest long-term upgrade options because the climate is generally well suited to heat pump operation.

Best Suited To

Heat pump hot water systems may suit:

Homes replacing older electric storage units
Families wanting lower electricity use than standard electric storage
Solar PV households
Properties with suitable outdoor space
Homes with good airflow around the unit
Customers focused on long-term ownership value
Medium to large households needing efficient storage hot water

What They Do Well

Heat pumps are popular because they can provide strong everyday hot water performance with better energy efficiency than standard electric storage.

Key advantages include:

Lower electricity use compared with standard electric storage when suitable
Good option for many SEQ homes
Works well with suitable outdoor placement
Can suit solar PV households
Large-capacity options available
Strong long-term upgrade pathway from older electric tanks

Things to Consider

Heat pumps need the right installation conditions.

Check:

Outdoor space
Airflow clearance
Drainage
Noise placement near bedrooms or neighbours
Electrical requirements
Household size
Recovery needs
Access for installation and servicing
Whether the system suits the property layout

For homes with tight side access, nearby bedrooms or limited outdoor space, JR Gas & Water can help compare quiet heat pump systems, large family heat pumps, budget heat pump systems and plug-in replacement heat pumps.

3. Gas Storage Hot Water Systems

Gas storage hot water systems use a gas burner to heat water stored inside a tank.

They are commonly chosen when a home already has gas storage hot water and the customer wants a familiar replacement.

Best Suited To

Gas storage systems may suit:

Homes already using gas storage
Customers wanting a like-for-like replacement
Properties with suitable natural gas or LPG supply
Households that prefer stored hot water
Homes where instant gas is not the preferred option
Customers wanting a familiar system type

What They Do Well

Gas storage systems can provide good recovery and familiar operation for homes already set up for gas.

Key advantages include:

Storage hot water with gas heating
Suitable for some high-use households
Familiar replacement pathway
Can suit homes with existing gas infrastructure
May be preferred where electric upgrades are not ideal

Things to Consider

Gas storage systems need suitable gas supply, correct outdoor location or compliant installation conditions, and ongoing gas availability.

Consider:

Natural gas or LPG availability
Existing gas line capacity
Outdoor installation requirements
Ventilation and compliance
Tank size
Household demand
Whether instant gas would be a better fit
Whether heat pump is worth comparing

JR Gas & Water can help compare gas storage hot water systems and provide support through its Brisbane gas fitter service.

4. Instant Gas Hot Water Systems

Instant gas hot water systems, also called continuous flow systems, heat water as it passes through the unit. They do not store a tank of hot water.

They are popular for homes that want continuous hot water and have suitable gas supply.

Best Suited To

Instant gas systems may suit:

Homes with natural gas or suitable LPG supply
Households wanting continuous flow hot water
Properties where tank space is limited
Families with high hot water demand
Homes replacing older instant gas units
Customers wanting no storage tank

What They Do Well

Instant gas systems are compact and can deliver hot water continuously when sized and installed correctly.

Key advantages include:

No storage tank
Compact outdoor unit design
Continuous flow hot water
Good for suitable high-demand homes
Strong option where gas supply is already appropriate
Can be sized for different flow requirements

Things to Consider

Instant gas systems must be sized correctly. The right model depends on bathrooms, flow rate, climate, gas supply and how many outlets may run at once.

Check:

Natural gas or LPG setup
Gas pipe sizing
Number of bathrooms
Required litres per minute
Controller requirements
Outdoor location
Water pressure
Whether simultaneous showers are common
Compliance requirements

For suitable gas homes, JR Gas & Water can help compare instant gas hot water systems and installation pathways.

5. Solar Hot Water Systems

Solar hot water systems use roof-mounted collectors to capture heat from the sun and heat water stored in a tank. Most systems include an electric or gas booster for cloudy days, night use and high demand periods.

Solar hot water can suit some homes well, but it needs the right roof, orientation, space and budget.

Best Suited To

Solar hot water systems may suit:

Homes with suitable roof space
Properties with good solar exposure
Households wanting renewable hot water support
Customers comfortable with higher upfront cost
Homes with suitable booster arrangements
Properties where roof access and installation conditions are practical

What They Do Well

Solar hot water can reduce reliance on grid energy or gas for water heating when conditions are suitable.

Key advantages include:

Uses solar energy for water heating
Can reduce running costs when correctly selected
Good fit for suitable sunny locations
Booster support for poor weather
Long-term renewable hot water option

Things to Consider

Solar is more site-dependent than many other systems.

Check:

Roof orientation
Shade
Roof condition
Available roof space
Tank location
Booster type
Household demand
Installation access
Maintenance needs
Upfront cost compared with other options

For some homes, a heat pump may be easier to install and more practical than solar hot water. For others, solar hot water may still be worth comparing through solar hot water systems.

Quick Comparison: Hot Water System Types

How to Choose the Right Hot Water System

The right system should be matched to your home and usage, not just the old unit size.

1. Match the System to Household Size

Household size gives a starting point, but shower habits, bathrooms, laundry use and timing matter just as much.

A household of four with short showers may need a different system to a household of four with teenagers, multiple bathrooms and heavy evening demand.

2. Consider Your Energy Source

Your existing energy setup can influence the best choice.

Ask:

Do you have natural gas?
Do you use LPG?
Do you have solar PV?
Is the current system electric?
Is the existing gas line suitable?
Is there enough electrical capacity for a heat pump or twin element unit?
Is the home on an off-peak tariff?

A home with solar PV may lean toward a heat pump. A home with strong gas supply may suit instant gas. A home with no gas and limited outdoor space may stay with electric storage.

3. Compare Upfront Cost and Long-Term Value

The cheapest system upfront is not always the best value long term.

A budget electric storage system may cost less to install, but a suitable heat pump may reduce electricity use over time. A premium instant gas system may cost more upfront, but could be better suited to a high-demand gas home.

Long-term value depends on:

Purchase price
Installation cost
Energy use
System lifespan
Warranty
Maintenance
Household demand
Correct sizing
Suitability for the property
Repair and parts availability

JR Gas & Water can help customers compare practical value, not just the cheapest replacement.

4. Check Installation Conditions

Installation can affect which system is possible or sensible.

Important checks include:

Access to the current system
Indoor or outdoor location
Concrete base or mounting requirements
Electrical supply
Gas supply
Roof access for solar
Pipework condition
Valve condition
Drainage
Side access
Body corporate rules
Noise placement for heat pumps
Distance from bathrooms and kitchen
Compliance requirements

A system that looks good online may not be the best fit if the site conditions are wrong.

5. Think About Repair vs Replacement

If your current hot water system has failed, replacement is not always the only option. Some faults can be repaired if the system is still in reasonable condition.

Repair may make sense if:

The system is relatively new
The tank is not leaking
The fault is isolated to a valve or serviceable part
The system is correctly sized
Parts are available
Repair cost is reasonable

Replacement may be better if:

The cylinder is leaking
The system is old
Repairs are becoming frequent
The unit is undersized
The system is inefficient
Parts are expensive or unavailable
The repair cost is close to replacement cost

JR Gas & Water can help with hot water repairs and servicing if you are unsure whether repair or replacement is the better option.

Local Brisbane and Gold Coast Hot Water Considerations

Hot water system choice can be affected by local property conditions across Brisbane, the Gold Coast and South East Queensland.

Common local factors include:

Older Brisbane homes with ageing pipework
High water pressure affecting valves
Clay soil movement affecting underground services
Tight side access beside homes
Townhouses with body corporate requirements
Gold Coast homes exposed to coastal corrosion
Acreage properties using LPG or long pipe runs
Solar PV homes considering heat pumps
Large family homes with high evening demand
Homes with outdoor unit noise concerns
Stormwater and drainage around outdoor systems

The right hot water system should suit the property, not just the number of people in the home.

Installation and Compliance

Hot water installation involves plumbing, water pressure, valves, drainage, energy connections and safety requirements. Gas work should always be completed by a licensed gas fitter. Electrical work should be completed by a licensed electrician.

Do not attempt to install, modify or disconnect gas, electrical or pressure components yourself.

Professional installation helps ensure:

The system is correctly connected
Valves are suitable and compliant
The unit is positioned correctly
Gas or electrical requirements are handled safely
Manufacturer instructions are followed
The system suits the home’s pressure and usage
Future servicing access is considered

For job-specific pricing and installation pathways, customers can review service work pricing or send photos and model details through the quote request page.

Maintenance and Lifespan

Every hot water system needs some level of maintenance. The right maintenance depends on the system type, age, water quality and manufacturer instructions.

Useful maintenance habits include:

Watch for leaks or corrosion
Check for changes in water temperature
Do not ignore noisy operation
Keep heat pump airflow areas clear
Book servicing if valves discharge frequently
Record error codes on gas or heat pump systems
Keep outdoor systems clear of debris
Arrange professional checks for ageing systems
Follow manufacturer service requirements

Do not remove covers, alter wiring, open gas components, modify valves or attempt internal repairs yourself.

Which Hot Water System Should You Choose?

Choose Electric Storage If

You want a simple replacement
Budget is the main priority
Gas is not available
Outdoor heat pump placement is difficult
The existing system is electric and has worked well

Choose a Heat Pump If

You want lower electricity use than standard electric storage
The home has suitable outdoor space
You have solar PV or want better long-term efficiency
Noise placement and airflow are suitable
You are replacing an older electric storage system

Choose Gas Storage If

You already have gas storage
You want a familiar like-for-like replacement
Gas supply is suitable
You prefer stored hot water
Instant gas is not the right fit

Choose Instant Gas If

You have suitable gas supply
You want continuous flow hot water
You need a compact outdoor unit
Your household has high hot water demand
The required flow rate can be supported

Choose Solar Hot Water If

You have suitable roof space and sun exposure
You want solar-supported water heating
You are comfortable with a higher upfront cost
A booster can be configured properly
Roof access and installation conditions are suitable

What JR Gas & Water Can Help With

JR Gas & Water can help customers compare, repair and replace hot water systems across Brisbane, the Gold Coast and nearby South East Queensland areas.

Relevant options include:

Compare heat pump hot water systems for efficient electric upgrades
Browse electric hot water systems for straightforward storage replacements
Review gas storage hot water systems for existing gas storage homes
Compare instant gas hot water systems for continuous flow options
Consider solar hot water systems for suitable roof and booster setups
Book hot water repairs and servicing if your current system may be repairable
Use the quote request page for photos, model details and practical recommendations

FAQs About Choosing a Hot Water System

What is the best hot water system for a family home?

For many family homes, heat pumps, instant gas and larger electric storage systems are the main options to compare. The best choice depends on gas availability, solar PV, outdoor space, household size and running cost goals.

Is a heat pump better than electric hot water?

A heat pump can use less electricity than a standard electric storage system when selected and installed correctly. However, it needs suitable outdoor space, airflow, drainage and noise placement. Electric storage may still suit simple or budget-focused replacements.

Is instant gas better than gas storage?

Instant gas is better for some homes because it provides continuous flow hot water without a storage tank. Gas storage may suit homes already using a gas storage system and wanting a familiar replacement. Gas supply and flow rate are key factors.

Is solar hot water still worth it in 2024?

Solar hot water can still be worth it for homes with suitable roof space, strong solar exposure and the right booster setup. However, heat pumps are often worth comparing because they can be easier to install in some homes.

What size hot water system do I need?

The right size depends on household size, shower habits, number of bathrooms, laundry use and peak demand. A small household may suit a smaller electric or heat pump unit, while larger families may need a larger heat pump, twin element electric, instant gas or solar-boosted system.

Should I repair or replace my hot water system?

Repair may be worthwhile if the system is newer and the fault is minor. Replacement is usually better if the tank is leaking, the system is old, repairs are frequent, or the unit no longer suits the household.

Can JR Gas & Water help compare hot water systems?

Yes. JR Gas & Water can help compare electric, heat pump, gas storage, instant gas and solar hot water systems based on your home, usage and installation conditions.

What should I send for a hot water quote?

Helpful details include photos of the current system, brand and model number, system age, household size, number of bathrooms, whether the system is leaking, available space, gas or electrical setup and any access issues.

Final Thoughts

Choosing the right hot water system in 2024 comes down to more than electric, gas or solar. The best system is the one that suits your household demand, energy source, installation location, budget and long-term ownership goals.

Electric storage may be the simplest replacement. Heat pumps are a strong long-term option for suitable homes. Gas storage can suit existing gas setups. Instant gas is ideal for suitable homes wanting continuous flow hot water. Solar hot water can work well where roof space and booster conditions are right.

Need help choosing the right hot water system?

JR Gas & Water can help compare heat pump hot water systems, electric hot water systems, gas storage hot water systems, instant gas hot water systems and solar hot water systems, or review photos and model details through the quote request page.