We answer that question straight away: replacing an old unit can cut your energy bills and improve comfort, and we assess whether a new system and any available rebate suit your home.

At Allmat Plumbing in Adelaide, we help customers across greater South Australia check eligibility under the Retailer Energy Productivity Scheme (REPS). The scheme has a once‑off site fee and standards that affect which offers apply.

We carry fully equipped vehicles and qualified, insured plumbers to assess your property, outline options from brands like Rinnai, iStore, Aquatech and Reclaim, and explain the program in plain information.

If a unit fails, our 24/7 emergency team isolates services and arranges fast repairs or replacement. We focus on energy use and running costs, not hype, so you get clear pros and cons for the best system for your home.

Key Takeaways

  • Replacing old units can reduce bills and improve reliability.
  • REPS offers may cover eligible replacements; rules and fees apply.
  • We provide site assessment, installation and paperwork management.
  • We service greater Adelaide with qualified, insured plumbers.
  • Call Marc on 0432 667 785 or request a quote to get started.

Hot water pain in Adelaide? Here’s the fix with efficient heat pump options

If your morning routine is ruined by lukewarm taps, we can help fast. Cold showers, rusty tanks and unreliable service are common across Adelaide.

Why old systems cost more in energy and emissions

Old electric storage and external instantaneous gas units lose heat through tanks and pipes. That wastes energy, pushes up bills and increases emissions.

External gas units may short-cycle or scale, while poor street gas pressure and ageing pipework add to water loss and downtime.

Our fix: efficient hot water with fast installation across Adelaide

We match a modern replacement to your usage, size the system correctly, check power and drain points and install neatly so warranties stay valid.

  • Qualified, insured plumbers with fully equipped vehicles
  • Residential and commercial customers — cafés, offices and shops
  • We handle taps, toilets, burst pipes, drains and gas isolation
Issue Old setup Our upgrade
Energy use High losses from tank and lines Lower operating energy with modern units
Downtime Long waits for parts Fast installation and same-day isolation options
Compliance Unknown or expired warranty Code-compliant installation and paperwork

We explain the REPS pathway and point you to the website tools before we attend. Call our 24/7 emergency line or book a plumber in Adelaide for a replacement plan today.

How a heat pump hot water system works and why it suits SA homes

Modern systems extract warmth from the air to make your daily showers and laundry more efficient. We explain the basics in plain language and show why this technology fits Adelaide’s mild climate.

Air-to-energy technology explained in plain terms

A unit pulls ambient air, compresses the refrigerant and transfers that energy into the storage tank. A small compressor and a closed refrigerant loop do the work, so you avoid a large electric element running all day.

Energy efficiency gains compared to electric storage

Efficiency wins: compared with old electric tanks, these systems use less electricity for the same output. That reduction shows up on bills and cuts household emissions.

  • Units work well in Adelaide mornings and can run when solar is producing.
  • Popular models on offers include iStore 180L, Rinnai Enviroflo, Aquatech RAPID/X6 225L and Reclaim Energy.
  • Requirements: airflow around the outdoor unit, a compliant drain and a dedicated circuit — we manage installation and coordination.

We size each system to your household, compare COP and recovery rates, and explain noise and defrost cycles clearly. Call Marc on 0432 667 785 or request a quote and we will size and schedule your hot water system fast.

Heat pump hot water rebates SA: who qualifies under REPS

Not every home or business qualifies — here’s how to tell if you’re eligible for a REPS offer.

Eligibility at a glance

Under the government scheme, existing houses, multi‑storey apartments and some small businesses may qualify. Eligibility depends on the building type and the system you are replacing.

Gas connection status matters

Offers differ if a site has reticulated gas or no gas connection. Some offers require the customer to disconnect external continuous gas units; others target properties without mains gas.

Which system you’re replacing

Common eligible swaps include replacing external continuous gas units or ageing electric boosted solar systems with a modern system. Each swap needs a nearby power point and a compliant drain for installation.

Mandatory site fee and inspection

A once‑off $33 REPS site fee applies per site. We always perform a site inspection because rebate values change by climate zone, model and site constraints.

  • We document valves, drains, power and clearances to meet code and rebate rules.
  • We manage the paperwork and assign credits to the obliged retailer partner on your behalf.
  • Commercial customers — we also handle backflow, TMVs and compliance items during the visit.
Old system Typical requirement Outcome
External gas continuous flow Power point + drain Rebate may apply
Electric boosted solar Assessment of wiring & location Replacement options
Close‑coupled storage Clearances and access Quote after inspection

Ready to check eligibility? Email info@allmatplumbing.com.au or call Marc on 0432 667 785 to book a site inspection and a compliant installation plan.

What the SA offers often look like in practice

Here’s what local offers typically look like and how they apply in practice across greater Adelaide.

Greater Adelaide availability and offer windows

Offers run only in greater Adelaide and open or close over time. We confirm current availability before booking any upgrade to avoid wasted visits.

Stock and tank sizes vary, so we check if other fuel types or brands suit your home during quoting. All quotes are subject to a site inspection.

When credits apply and assigning them to the retailer partner

On the day we capture site details that affect energy outcomes and program eligibility: clearances, electrical supply and drain points.

Credits created by the activity must be assigned to the obliged retailer partner via MAC Trade Services. We handle that admin so you can focus on a working system.

  • We explain the expected range of eligible swaps and point you to the right website resources before we attend.
  • Our fully equipped vehicles let us adapt on site and keep downtime short.
  • We schedule visits to suit customers — school runs, business hours and quick turnarounds.
Item We check Outcome
Eligibility Existing setup and site constraints Quote after inspection
Credits Assignment to retailer partner We manage paperwork
Installation Fittings, valves and downtime Coordinated in one visit

Book a plumber in Adelaide now and request a quote to lock in an inspection within the current offer window: book a plumber in Adelaide.

Heat pump vs gas hot water vs solar boosted in South Australia

We compare three common replacements so you can see running costs, emissions and practical trade‑offs.

Running costs, carbon, and efficiency in Adelaide’s climate

Heat pump options usually win on energy efficiency in Adelaide because they move ambient energy rather than relying solely on an element. That reduces bills and lowers carbon and emissions for most household sizes.

Gas hot water can suit homes with high continuous demand, but fuel costs and seasonal efficiency affect the overall cost. Solar boosted systems work well where roof aspect and space are good; the Rinnai Sunmaster is a common option we install.

When solar‑electric boosted or a heat pump makes sense

We assess roof access, shading, daily usage and existing gas connection before recommending a path. Our licensed gas fitters handle leak detection, isolation and safe reconnection if you switch fuels.

Option Running cost Carbon
Heat pump Low‑medium Low
Gas hot water Medium‑high Higher
Solar boosted Low if sunny Low

We price valves, drains and any roof work so you see the full system cost. Request a quote or call Marc on 0432 667 785 for an Adelaide‑specific plan and to check available rebates.

Common replacement scenarios we handle every week

We replace worn units across Adelaide every week, often in a single visit. Our teams assess the location, confirm access and fit the right solution so the job runs smoothly.

Swapping external continuous flow with power and drain on site

External gas continuous flow to a modern option is a common swap when a power point and a drain exist at the site. We check clearances, base pads and neighbour noise to ensure a compliant system installed without nuisance.

Replacing old electric storage or earlier units

Replacing tired electric storage or older models is straightforward for us. We manage valve upgrades, tempering and testing to meet code, and we test gas lines if an old unit is decommissioned.

  • We stage installs for businesses to keep trade running.
  • Our vans carry parts, valves and tags for immediate fixes.
  • We remove and recycle old units and tag safety devices before we leave.
  • For overnight failures we run a 24/7 emergency response and rapid replacement scheduling.
Scenario We check Outcome
External continuous flow swap Power point & drain Quick onsite conversion
Old electric storage Valves & tempering Code‑compliant replacement
Faulty tank overnight Safety isolation Emergency response

Need a fast swap? Call Marc on 0432 667 785 to book an Adelaide install window this week.

Installation, timelines, and what to expect on site

Our team coordinates every detail of installation so disruptions are minimised for your household or business. We provide a clear arrival time, scope of work and a safety briefing before any work begins. All quotes remain subject to a site inspection to confirm access and final pricing.

Qualified, insured teams with fully equipped vehicles

We arrive on time with qualified and insured plumbers carrying the equipment needed to complete most installs in one visit. That reduces downtime and keeps the project efficient.

Site access, single-storey and placement options

We assess site access, pathway widths and clearances to position the system for airflow, serviceability and low noise. Single‑storey homes are common in Adelaide; we plan roof or ground placements with secure anchoring and safe working methods.

Before work starts we explain water, power and drain routing so you know where penetrations will be and what changes to expect.

Fast response and 24/7 emergency support

If a unit fails after hours our 24/7 emergency line gets you safe and often secures a next‑day installation window. For businesses we coordinate with opening hours and isolate zones to keep essential services running.

  • We handle valves, tempering, backflow and any gas adjustments while keeping energy performance front of mind.
  • We brief you on maintenance and filter checks to keep the pump efficient and extend system life.
  • We confirm any rebate requirements and required photos during the site inspection to avoid delays.
Item Typical time Outcome
Standard installation Same‑day to 2 days Complete fit, test and handover
Complex site access Quote after inspection Custom plan and schedule
Emergency response 24/7 callout Safety isolation & rapid follow-up

Ready to book? Call Marc on 0432 667 785 or request a quote to lock in your Adelaide installation window.

Costs, savings, and how rebates reduce your bill over time

We break down the main costs and show where real savings appear across a system’s life. That way you can compare options without opaque pricing.

What affects rebate size: connection status, climate zone, model

Key drivers are your energy connection (mains gas or electric), climate zone in greater Adelaide, and the certified model chosen under the government REPS rules.

We confirm eligibility at inspection, collect photos and serials, and explain the once‑off $33 site fee. This step secures any rebate or rebate value before installation.

Energy bill savings and emissions cuts over the system life

Typical households see bills fall because hot water is a big portion of home energy use. An energy efficient heat pump can reduce that load and lower emissions when replacing older gas or electric units.

  • We list total cost drivers: model choice, pipework condition, valves, electrical work, and base or drain needs.
  • We outline the range of likely savings and how usage patterns and tariffs change outcomes.
  • We plan installation timing to align with rebate windows and avoid emergency premiums.

Our quotes spell out inclusions and compliance items in plain language. We also manage assignment of credits to the obliged retailer partner so the paperwork is simple.

Ready to check eligibility and potential savings? Email info@allmatplumbing.com.au or call Marc on 0432 667 785 to book an Adelaide inspection and a clear path to lower bills.

Choosing the right system and booking your Adelaide install

We start every quote by matching expected demand to the correct tank and technology. That helps us pick the right model for your household or business and avoids oversizing or needless expense.

Brands and tank sizes available on request

We supply and install leading names on demand, including iStore, Rinnai Enviroflo, Aquatech, Reclaim Energy and the Rinnai Sunmaster solar boosted range. Tell us your usage and we’ll recommend tank sizes and recovery rates that suit greater Adelaide.

Commercial compliance: backflow, TMVs, grease arresters and D&C

For businesses we manage backflow prevention, TMVs, grease arresters and design & construct requirements so the system installed meets strict codes. We coordinate testing and certification during handover.

Next steps: assessment, quote, and installation date

  • Assessment call, then an on-site inspection and written quote.
  • We outline incentives and required documents and confirm assignment of REPS credits to the obliged retailer partner via MAC Trade Services.
  • Once accepted we lock an installation date and coordinate electrical, valves and disposal for a tidy handover.

Ready to go? Call Marc on 0432 667 785, request a quote today, or book a plumber in Adelaide now.

Conclusion

Investing in a modern system delivers comfort, lower energy use and clearer costs.

We make replacing an ageing unit simple under the government scheme for greater Adelaide. Our team handles site checks, assigns credits to the retailer partner, and explains any rebate or incentive eligibility on the day.

We design the water system to suit your household or business, manage plumbing, gas work and compliance, and back installations with 24/7 emergency support if a tank fails after hours.

Ready to plan your upgrade? Call Marc on 0432 667 785, email info@allmatplumbing.com.au or request a quote via our website to lock in an inspection and clear savings projections.

FAQ

Are heat pump hot water systems worth it in South Australia?

We find these systems offer strong lifetime savings and lower emissions for many households in South Australia. They use air-source technology to produce hot water far more efficiently than conventional electric storage, which cuts electricity use and running costs. Upfront installation is higher than simple electric units, but incentives and lower bills usually repay the difference over several years.

Why do old hot water systems cost more in energy and emissions?

Older gas and electric storage models lose heat through insulated tanks and use less efficient burners or elements. That raises energy consumption and emissions. In Adelaide’s climate, replacing aging equipment with a modern, efficient unit reduces standby losses and fuel demand, so bills and carbon output fall.

How do air-to-energy systems work in plain terms?

These systems extract warmth from the surrounding air and transfer it to the water via a refrigerant cycle and heat exchanger. A compressor raises temperature and delivers the energy into a storage tank or continuous-flow module. The result is substantially less electrical input for the same usable hot water compared with resistive heating.

How do efficiency gains compare to electric storage?

Typical coefficients of performance (COP) mean you can get two to four times the energy delivered per unit of electricity used versus electric elements. That translates to lower kilowatt-hour use and smaller bills, especially for families with steady daily demand.

Who qualifies for heat pump hot water rebates under REPS?

Eligibility usually targets existing homes, apartments and small businesses replacing less efficient units. Applicants must meet program rules at the installation address, including owner or tenant consent where required. Each incentive round has specific documentation and installer accreditation requirements we can help confirm.

Does having a gas connection affect eligibility?

Yes. Whether a property is connected to reticulated gas or has no gas supply can change incentive size and qualifying replacements. Some offers focus on sites without gas to encourage non‑fossil options, while others permit swaps from gas continuous-flow models but with different rules.

Which systems can be replaced to qualify — electric, gas continuous flow or solar‑boosted?

Programs commonly accept replacements of electric storage tanks and older gas continuous‑flow units. Solar‑boosted systems may qualify in some circumstances if the new equipment meets performance and installation standards. We assess your existing setup to confirm eligibility before quoting.

What is the mandatory REPS site fee and why is a site inspection required?

The site fee covers administrative compliance and a mandatory inspection to verify the existing system and installation conditions. Inspectors confirm eligibility, assess access and any plumbing or electrical work needed. This step protects customers and ensures the incentive is applied correctly.

How available are offers across Greater Adelaide and what do offer windows look like?

Availability varies by funding round and supplier quotas. In Greater Adelaide, windows can open and close quickly when allocations are exhausted. We monitor offer streams closely and advise customers on booking promptly to secure credits within an active window.

When do credits apply and can they be assigned to a retailer partner?

Credits are applied after successful compliance checks and finalisation of installation paperwork. Many customers assign their rebate to our retailer or installer partner to reduce upfront cost; we provide clear agreements and receipts to document the assignment and remaining client contribution.

How do these systems compare to gas and solar‑boosted options in Adelaide?

In Adelaide’s mild climate, modern air‑source units often outperform gas in lifecycle running costs and carbon intensity. Solar‑electric boosted solutions suit homes with existing PV and battery infrastructure. Choice depends on existing connections, roof orientation, demand profile and whether you prioritise lower bills or reduced emissions.

When does solar‑electric boosting make more sense than a new unit?

If you already have a sizeable PV system and daytime generation matches hot water demand, a solar‑electric booster can deliver very low marginal energy costs. For properties without PV, a dedicated air‑source unit commonly gives better whole‑of-life savings and reliability.

What replacement scenarios do you handle most often?

We frequently swap out external gas continuous‑flow heaters where electrical supply and drainage are installed on site. We also replace old electric storage tanks and failing heat‑recovery units. Our teams are experienced with confined spaces, apartments and commercial setups requiring additional compliance work.

What qualifications do installers have and what should we expect on site?

Our plumbers are fully licenced, insured and carry accredited tools and parts. On site we assess location, check electrical circuits and drains, and confirm tank or unit placement. We discuss access, roof or ground mounting and any minor roof penetrations or scaffolding needs before work begins.

How long does an installation usually take and do you offer emergency service?

Typical replacements take one day for straightforward swaps; complex commercial jobs may require longer. We also provide fast response for system failures and 24/7 emergency support to restore hot water where safety and hygiene are at risk.

What affects the size of an incentive or credit?

Rebate value depends on factors such as existing connection status, climate zone, model efficiency and whether the correct accredited installer completes the work. Program rules also weight the type of system being replaced and overall expected emissions reduction.

What savings and emissions reductions can we expect over a system’s life?

Savings vary by household size, usage and energy prices, but many customers see 40–70% lower energy use for hot water versus old electric storage. That translates into substantial lifetime bill reductions and notable carbon cuts, especially when paired with rooftop PV.

Which brands and tank sizes are available and how do we choose?

We supply leading Australian and international brands that meet program standards and offer multiple tank capacities and continuous‑flow options. We size equipment to household demand, installation location and budget, balancing recovery rate and efficiency for best outcomes.

What commercial compliance issues should businesses consider?

Commercial installs often require backflow prevention, thermostatic mixing valves (TMVs), grease arresters and compliance with design and construction (D&C) rules. We handle documentation, certification and coordination with building managers to meet regulatory standards.

What are the next steps to get an assessment, quote and installation date?

Contact us for a site assessment. We verify eligibility, advise on suitable models, provide a transparent quote with any incentive applied and book an installation date. We aim to make the process simple and to secure any available program credits on your behalf.