Heat Pump Hot Water Systems
in Melbourne & Regional Victoria
Supply Solar installs heat pump hot water systems across Melbourne and Victoria — cutting hot water energy costs by up to 75%. With the Solar Homes rebate and VEU discount, your out-of-pocket cost is far less than you'd expect.
Get Your Free Heat Pump Quote
Rebates confirmed, all paperwork handled
How Does a Heat Pump Hot Water System Work?
Air absorbs heat
The fan draws in ambient air from outside. Even at 10°C, air contains significant heat energy — enough for the system to extract efficiently year-round in Melbourne's climate.
Refrigerant compresses the heat
The extracted heat is transferred to a refrigerant, which is then compressed to raise its temperature. This is the same process used in reverse-cycle air conditioners — proven, reliable technology.
Hot water stored, ready to use
The compressed heat is transferred into your insulated storage tank, heating your water to 55–65°C. One cycle heats a full tank — typically in 1–3 hours — using a fraction of the energy of a standard element.
Heat Pump vs Gas vs Electric — Running Cost Comparison
Melbourne households spend $600–$1,400 per year on hot water. Here's how each system type compares on annual running cost and upfront investment.
| System type | Annual running cost | Energy use | Upfront cost | Rebate available VIC | CO₂ emissions |
|---|---|---|---|---|---|
| ⭐ Heat Pump | ~$200–350/yr | ~800–1,200 kWh/yr | $2,500–$4,500 installed | ✅ Up to $1,400 + VEU | Lowest (electric) |
| Solar Thermal + Boost | ~$100–250/yr | ~300–600 kWh/yr | $3,500–$6,000 installed | ✅ Solar Homes rebate | Very low |
| Natural Gas Storage | ~$400–700/yr | ~15–22 GJ/yr gas | $1,200–$2,200 installed | ❌ No VIC rebate | High (gas combustion) |
| Electric Storage (standard) | ~$900–1,400/yr | ~3,500–5,000 kWh/yr | $800–$1,500 installed | ❌ No VIC rebate | Highest (grid electric) |
Running costs based on Melbourne grid tariffs and average 4-person household usage. Actual costs vary. Heat pump costs can fall to near-zero when paired with solar and timed to run during generation hours.
Six Reasons Melbourne Homes Are Switching
Cut hot water bills by up to 75%
A heat pump moves heat instead of generating it — using roughly 3–4 kWh of energy for every 10 kWh of heat produced. Most families save $400–$800 per year on hot water alone.
Run it free from solar
Set your heat pump to run during the middle of the day — when your solar panels are generating surplus electricity — and your hot water costs nothing. Zero energy in, hot water out.
Up to $1,400 rebate + VEU discount
The Solar Homes Program offers up to $1,400 for eligible owner-occupiers upgrading their hot water system. The Victorian Energy Upgrades program adds a further point-of-sale discount. Supply Solar handles both.
Get off gas — permanently
With gas prices rising every year, replacing your gas hot water system with a heat pump locks in a lower, more stable running cost. Most Melbourne homes can fully electrify hot water with a single unit.
Works year-round in Melbourne
Heat pumps extract energy from air as cold as -10°C. Melbourne rarely gets close — so your system runs efficiently in every season, including winter, without backup element reliance.
Fully installed by our electrical team
Supply Solar's CEC-accredited electricians handle the full installation — including gas isolation, electrical work, and rebate paperwork. You deal with one team, start to finish.
Heat Pump Rebates We Apply for You
Two Victorian incentives reduce the installed cost of a heat pump hot water system — and Supply Solar confirms your eligibility and lodges both at the time of installation.
Solar Homes Program
Solar Victoria's hot water rebate is available to eligible owner-occupiers replacing an electric or gas storage system with a heat pump. Income limits apply: the cap drops from $210,000 to $150,000 on 1 July 2026.
Full rebate eligibility guide →Victorian Energy Upgrades (VEU)
The VEU program provides a point-of-sale discount on heat pump hot water systems installed by accredited providers like Supply Solar. The exact discount varies by product and is applied directly to your invoice — no claim required from you.
Can I combine both rebates? →Switching from Gas to Heat Pump
Gas prices in Victoria have risen significantly and are expected to keep climbing. A heat pump replacement locks in a dramatically lower running cost — and the Solar Homes rebate helps cover the switch.
Supply Solar manages the full gas-to-electric switchover: gas isolation, new electrical circuit, and rebate paperwork all done by our team in a single installation day.
Gas Switchover GuideFree assessment & quote
We inspect your current system, confirm rebate eligibility, and provide a fixed-price quote for the full switchover.
Gas isolation
Our licensed team safely disconnects and caps the existing gas line — compliant with Victorian regulations.
Heat pump installed
The new unit is installed in the same location (or a new ventilated position), connected to your existing hot water plumbing.
Rebates lodged, paperwork done
We lodge the Solar Homes rebate and VEU discount on your behalf — you receive them at the point of installation.
Pair Your Heat Pump With Solar — and Run It for Free
Set and forget: hot water from sunshine
A heat pump can be programmed to run between 10am and 3pm — when a typical solar system is generating peak surplus electricity. Your panels power the heat pump, which heats your water, at effectively zero cost.
Add a home battery and the heat pump can run from stored solar in the evening too — giving you near-complete energy independence for hot water, year-round.
Add Solar to Your QuoteEstimates based on Melbourne tariffs and average 4-person household. Actual results vary.
Your Heat Pump Installation — Step by Step
Free assessment
We check your current system, location, and electrical setup, and confirm which rebates you qualify for — at no cost.
Fixed-price quote
One clear price covering the unit, installation, electrical work, gas isolation (if needed), and rebate lodgement. No surprises.
Installation day
Most heat pump installations take 3–5 hours. We remove the old system, install the new unit, and connect to your existing plumbing and electrics.
Rebates applied, hot water on
We lodge the Solar Homes rebate and VEU discount at installation. You start saving from the first cycle — that day.
Accredited, Award-Winning & Fully In-House
CEC-accredited & NETCC approved
Every heat pump installation is completed by our own CEC-accredited electrical team — not a subcontractor. Your rebates, warranties and compliance are protected.
Award-winning installer
Winners of the 2023 CEC Collaboration Award and 2024 EUPD Australian Installer Award — independent recognition of installation quality and customer experience.
Solar + heat pump in one team
We design your heat pump to work with your solar from day one — no separate trades, no awkward handoffs. One quote covers everything.
Rebates handled, not just mentioned
Many installers list rebates but leave the paperwork to you. Supply Solar confirms eligibility upfront and lodges the Solar Homes rebate and VEU discount at installation — you receive them on the day.
Heat Pump Installation Near You
We install heat pump hot water systems right across greater Melbourne and regional Victoria.
What Melbourne Homeowners Say
"Replaced our old gas hot water system with a heat pump. Supply Solar handled the gas isolation, the electrical work, and the Solar Homes rebate — all in one day. First electricity bill was noticeably lower."
"We got solar and a heat pump at the same time. They set the heat pump to run at midday from our panels. Our hot water is basically free now — and the $1,400 rebate came off the install price on the day."
"Electric storage was costing us a fortune. Supply Solar replaced it with a heat pump — VEU discount applied on the day, job done in 4 hours. Very professional, explained everything clearly."
Heat Pump Hot Water FAQs
Is a heat pump hot water system worth it?
How much does a heat pump hot water system cost in Melbourne?
How much can a heat pump save on power bills?
How much is the heat pump rebate in Victoria in 2026?
Can I replace a gas hot water system with a heat pump?
What is the best heat pump hot water system in Australia in 2026?
What is the most energy efficient hot water system?
How long does heat pump hot water installation take?
Related Pages
Heat Pump & Hot Water Pages
Ready to Cut Your Hot Water Bill for Good?
Get a free, no-obligation quote with your rebate eligibility confirmed. A Supply Solar specialist will call within 2 business hours to walk you through your options.
No obligation · Up to $1,400 rebate + VEU · CEC-accredited · Melbourne & Regional Victoria
