Hot water · Melbourne

Far less
energy.
Same shower.

Hot water is usually the second largest line on a Victorian energy bill. A heat pump moves warmth out of the air into your tank instead of burning gas or running an element — and does it on your midday solar.

Heat pump hot water unit installed beside a Melbourne home
Most common changeover
280L · COP ~4
≈ $780/yr illustrative saving*
62°C
Heated 10am – 3pm on surplus solar
01COP 3.5 – 4.8
Typical heat moved per kWh
0260–75%
Typical energy reduction vs element
03One day
Typical changeover
Why changeovers go wrong

A heat pump is only cheap to run if it's sized, scheduled and sited properly.

Most disappointing installs come down to a tank that's too small, a heating cycle left on overnight, or a compressor humming outside a bedroom window.

01

Sized on occupancy alone

Two people with a spa bath outdraw four people with quick showers. Peak morning demand is what actually sets the tank size.

02

Heating on the wrong schedule

Left on factory settings the unit heats overnight at grid rates — throwing away the entire point of pairing it with solar.

03

Placed wherever the old tank was

The old electric tank was silent. A compressor in the same spot outside a bedroom window becomes a nightly problem.

A day in the tank

Four showers between
seven and eight.

A 280L heat pump serving a household of four. Drag across the day to see the tank charge on midday solar, hold overnight, and take the morning peak without a booster.

12amMidday solar window11pm
Tank temperature Hot water drawn
7am · Morning peak
49°C
148L drawn this hour

Insulation is doing the work — the tank holds its heat overnight at a fraction of a degree per hour.

Booster useMinimal in this example
Daily standing loss≈ 1.2 kWh
Recharge window10am – 3pm
Sizing

Sized on your morning,
not your floorplan.

Peak hour demand is what sets the tank. Set your household below and see the size we would actually quote.

People in the house4
Average shower8 min
Recommended tank
250L
Covers a peak hour of about 192L of hot water
Peak draw 77% of tankFull recovery in 3 – 4 hrs

This is the size we would quote for that morning. Bigger is not automatically better — an oversized tank carries more standing loss for water nobody uses.

Running cost

The same hot water,
four very different bills.

Annual cost for a household of four with identical usage, at current Victorian rates. Toggle solar to see what a midday heating window does.

Heat pump$130
Gas storage$770
Gas instant$700
Electric element$620

Indicative annual running cost · household of four · identical usage

Annual gap
$640
saved every year against the worst performer
Typical rebateVEU + STC applied
Payback3 – 5 years
Gas supply chargeRemoved entirely
Anatomy of the system

Five parts.
One quiet result.

Tap a component to see exactly what we specify for a Melbourne changeover.

Heat pump unit

A refrigeration cycle run backwards — it moves heat, it doesn't make it.

EfficiencyCOP 3.5 – 4.8
Ambient range−5°C to 43°C
RefrigerantR290 or R32, low GWP
ConfigurationIntegrated or split
Without itAn element burns four times the power for the same shower
Placement

The old tank was silent.
This one has a compressor.

Where the unit goes decides whether you ever notice it. Choose a position to see what reaches the nearest bedroom window.

BEDROOM44332941
At the bedroom window
33 dB
We would install here

Short pipe runs, easy drainage, and the noise lands on a wet area rather than a bedroom. Usually the best compromise.

Design decisions

Six choices behind
a lower hot-water bill.

Every one is settled on site, before the unit is ordered.

01

Heated on midday surplus

The tank charges in your solar window, so the cheapest energy of the day does the work while you're out.

10am – 3pm
02

Sized on peak morning

Four showers between 7 and 8am is the real test — not the number of bedrooms on the plan.

Demand modelled
03

Booster kept as backup

The electric element exists for cold snaps and unusual demand, not as a crutch for an undersized unit.

Rarely runs
04

Sited for quiet

Compressor noise placed away from bedroom and neighbour windows, on anti-vibration mounts.

< 48 dB
05

Valves replaced, not reused

New tempering and PTR valves every time. Reused valves are the most common cause of a lukewarm complaint.

New every job
06

Rebates applied up front

VEU and STC discounts come off the quoted price, so the number you see is the number you pay.

Net pricing
How it runs

Old tank out,
new one running.

Where you're eligible, incentives are applied to your quote before you see it, and the old system is removed and recycled on the day.

01
Day 0 · 30 minutes

Demand & site check

Household peak usage, existing plumbing, drainage and the quietest compliant location for the unit.

02
Within 24 hours

Net-price quote

Tank size, model and placement with VEU and STC rebates already deducted — one number, fixed.

03
4 – 6 hours

Changeover day

Old system removed, new unit set on a level pad, tempering and PTR valves fitted, condensate drained legally.

04
Same visit

Scheduling & certificate

Heating window set to your solar hours, sanitisation cycle scheduled, plumbing compliance certificate issued.

Pricing

What it costs,
before you ask.

Indicative installed pricing after typical Victorian rebates, with the peak-morning coverage each tank actually delivers.

One to two people
170 L
$1,900 – $2,600
$520 / yr saved
Back-to-back showers3
before recovery
Three to four people
280 L
$2,600 – $3,400
$780 / yr saved
Back-to-back showers5
before recovery
Five or more, or a spa bath
300 L+ split
$3,400 – $4,600
$960 / yr saved
Back-to-back showers7
before recovery

Illustrative examples only. Example inputs: replacing an electric storage system on a 34c/kWh tariff, heating scheduled on solar surplus. Pricing is net of VEU incentives and federal STCs only where you are eligible and assignment conditions are met, and includes removal of the old system, new tempering and PTR valves, and the plumbing compliance certificate.

Illustrative example of a heat pump hot water system beside a homeIllustrative 280L changeover
Our commitment

The heating window is set to your solar hours and the plumbing compliance certificate is issued on the day — before we leave.

Licensed plumbersLicensed electriciansIncentives applied where eligible
Questions

Hot water,
answered plainly.

It runs a refrigeration cycle in reverse, pulling warmth out of the surrounding air and moving it into the tank. Because it moves heat rather than creating it, it typically uses around 60–75% less electricity than a conventional electric element, depending on conditions and sizing.

One system

Every part talks
to the others.

Solar, storage, charging, comfort and hot water are designed together — not bolted on one at a time.

Next step

Find out what your hot water really costs.

A free site check sizes the tank on your actual morning demand and returns a net price with every rebate already deducted.

Call now