Established and renovated houses

When an older system needs replacing, existing pipework, valves and connections need checking too. If a renovation has added a bathroom, the replacement should match the home’s current demand.

Units and apartments

First check whether your home has its own water heater or uses a shared system. Access, available space, airflow, noise and any body corporate approval requirements can influence the options.

Smaller households

One or two people may have modest daily use, but shower length, baths and visiting family still matter. Compare usable hot water, recovery and operating costs before choosing a tank size.

Family homes and rentals

Back-to-back showers can put a system under pressure even when daily use seems reasonable. Owners and landlords should balance peak demand, reliability, repair access and ongoing costs.

Repair may make sense when

• The tank itself is sound
• The fault is isolated and economical to fix
• The system still suits the household
• Parts remain available

Replacement may be smarter when

• The storage cylinder has failed or is leaking
• Its condition makes further repairs poor value
• Faults are becoming frequent
• Its capacity cannot meet confirmed household demand

An upgrade may suit when

• The family or number of bathrooms has grown
• You have added rooftop solar
• Running costs are a priority
• You want better recovery or continuous flow

Coastal exposure

Salt-laden air can accelerate corrosion on exposed outdoor equipment. A unit near the waterfront may face different conditions from one in a sheltered position. Check the selected model’s coastal installation guidance, warranty terms and maintenance requirements.

Airflow, noise and space

A heat pump needs suitable air circulation and manufacturer-specified clearances. A cupboard or tight balcony is not automatically suitable. Placement should also account for drainage, servicing and noise near bedrooms or neighbouring homes.

Access and existing services

Check doorways, stairs, side passages and room to remove the old tank. Existing electrical or gas supply, plumbing condition and shared services can affect the work required and the installed cost.

Electric storage

Familiar, relatively simple and often straightforward to replace where the electrical setup is suitable.

Often compared on upfront cost, tank size and tariff setup.

Heat pump

Uses heat from the surrounding air and can reduce electricity use compared with traditional electric storage.

Placement, airflow, noise, tank size and operating schedule matter.

Instantaneous gas

Heats water on demand without a storage tank. Its flow capacity must match the outlets you expect to use at the same time.

Requires suitable gas supply, pipe sizing and a suitable installation position.

Gas storage

Stores heated water ready for use and may suit an existing gas installation. Compare recovery, standing heat losses and ongoing fuel costs.

Tank capacity and ongoing gas costs still need to be considered.

Solar hot water

Uses roof-mounted collectors and a booster to provide hot water when solar gain is insufficient.

Roof suitability, shading, access and booster operation affect the choice.

Hot water faults we investigate in Redcliffe

Do not ignore an actively leaking or unsafe system

Keep clear of electrical components and escaping hot water. Only isolate a supply if you can identify the correct control and use it safely. Contact RJT for help with a leaking system or loss of hot water; availability depends on the fault, parts and scheduling.