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Wulfe Heat Pump Hot Water

Our premium heat pump: a large tank, a quiet inverter-driven compressor, triple anode protection, and a 10-year product warranty behind it.

Get a Wulfe quote

Send a few photos of your existing system and tell us how many people are in the house, and we will come back with a fixed price.

What do you need? Pick as many as apply
Photo of your switchboard Optional, but worth it
Photos only · resized here

A photo of your switchboard with the door or lid open, so we can see the main switch and the breakers. Still photos please — we cannot accept video.

We reply within 24 hours, Mon–Sat.

We only use your details to quote your job. No obligation to go ahead.

In plain terms

How a heat pump works

A conventional electric hot water system heats water the same way a kettle does — it turns electricity straight into heat. A heat pump doesn't make heat, it moves it. A fan pulls in outside air, the unit extracts the warmth already in it, and puts that into the tank. Because it's moving heat rather than creating it, you get several units of heat out for every unit of electricity in.

Wulfe's comparison of yearly running costs, showing electric and gas storage well above a heat pump and a heat pump running on solar
  • A fraction of the running cost

    Wulfe rate the HP Plus at up to 71% less energy than a conventional electric water heater.

  • Your tank is a battery you already own

    Set it to run in the middle of the day and it soaks up solar you'd otherwise export, storing it as hot water for the evening. It isn't a substitute for a home battery, but if you've got solar it's the cheapest way to start using more of it.

  • Smart control

    The control system can be programmed to run on your solar or your cheapest tariff window while still keeping the tank hot when you need it. It also runs an automatic sanitising cycle.

  • Built for the conditions here

    Proven down to −7°C, so a cold Melbourne morning is well inside what it's designed for. Designed for outdoor installation.

  • Natural refrigerant

    The HP Plus runs R290, which has a very low global warming impact compared with the synthetic refrigerants used in a lot of older units.

Running costs as published by Wulfe. What you actually pay depends on your tariff, your household and whether you have solar.

The range

Which size you need

Getting the size right matters more than the brand does. Undersize it and you run out of hot water; oversize it and you've paid for more tank than the house needs.

A Wulfe heat pump hot water unit installed in a narrow side passage
  • Wulfe 250L

    Suits most Melbourne households — a family with a bathroom or two and normal daily hot water use.

  • Wulfe 330L

    For larger households: big families, several bathrooms, teenagers, or anyone whose current system runs cold before everyone's had a shower. There aren't many all-in-one units with a tank this size.

  • Smaller tanks

    We also install iStore, in 180L and 270L.

  • We size it against your household

    How many people, how many bathrooms, when everyone showers, and where the unit can physically go with enough airflow around it. Send a few photos of your existing system and we'll tell you which one suits and why.

Feature Wulfe 250LWulfe 330L
Tank 250 litres330 litres
Suits Most family homesLarge families and high demand
Refrigerant R290 natural refrigerantR290 natural refrigerant
Compressor Inverter drivenInverter driven
Noise 42 dBA42 dBA
Tank protection Three full-length anodesThree full-length anodes
Water temperature 60°C, 75°C with booster60°C, 75°C with booster
Cold weather Proven to −7°CProven to −7°C
Warranty 10 years product, 2 years labour10 years product, 2 years labour
Installation Outdoor, needs clear airflowOutdoor, needs clear airflow

Figures from Wulfe Australia product documentation. Models and specifications change — we'll confirm the current range in your quote.

Why this one

Why we install Wulfe

A heat pump and cylinder installed and commissioned
  • Ten-year warranty, and that's the main reason

    Wulfe back the product for 10 years, with 2 years on labour, for the original owner-occupier. Over the life of a hot water system that's worth more than any spec on the datasheet, and it's the main reason we stock them. Keep your original invoice — it's required as proof of purchase for a claim.

  • Inverter driven, so recovery is quick

    The compressor varies its speed rather than switching hard on and off. That means faster recovery after a run of showers, and it's part of why the unit is so quiet.

  • Genuinely quiet

    Rated at 42 dBA. That's quieter than most heat pumps in this class — worth knowing if the only place it can go is near a bedroom window or a neighbour's fence.

  • Triple anodes, less maintenance

    Every heat pump tank uses a sacrificial anode to stop the tank corroding, and it needs checking periodically. Wulfe fit three full-length anodes rather than one, which matters in areas with harder water and means less frequent attention over the life of the unit.

  • Rebates built into the price

    Wulfe are certified with the Clean Energy Regulator and the STC discount is already factored into the unit price — one less claim to chase. We handle the Victorian rebates on top of that.

The bigger picture

Getting off gas

For most Melbourne homes, hot water is the biggest gas load in the house.

A heat pump replacing a gas storage hot water unit
  • Gas isn't the cheap option anymore

    Victorian gas prices have climbed steadily, and the way network costs work means bills keep rising even when wholesale prices settle — every household that leaves gas shifts more of the fixed pipe-maintenance cost onto the ones who stay.

  • The rule is coming anyway

    From 1 March 2027, Victorian homes will need to replace gas hot water with an efficient electric system as it reaches end of life. Doing it now, while the rebates are generous, puts you ahead of that rather than scrambling behind it.

  • Losing the supply charge

    If hot water is your last gas appliance, replacing it means you can disconnect gas entirely and stop paying the daily supply charge for a service you're barely using.

  • We do the rest of it too

    Induction cooking, switchboard capacity, solar and battery. The hot water changeover can be step one of a plan rather than a one-off job.

What you get

What a standard install includes

Every standard heat pump hot water installation covers the following.

Water and power connections on a newly installed heat pump
  • Removal and disposal of your existing hot water unit

  • Supply and installation of a new energy-efficient heat pump system in the same location

  • Standard plumbing and electrical work — like-for-like, same location, electrical run up to 10m

  • Weatherproof electrical isolator switch, and where required a dedicated circuit protected by an RCBO

  • Commissioning and system testing to confirm correct, safe operation

  • 10-year product warranty and 2-year labour warranty for the original owner-occupier, with the original invoice as proof of purchase

  • Compliance certificates: plumbing (VBA) and electrical (Energy Safe Victoria)

Good to know. A larger tank is heavier and needs a suitable base and more clearance, so where it can go is worth checking early — we'll confirm that when we quote. Relocating the unit to a new position, or electrical runs beyond 10 metres, are charged as additional work. Extra charges can apply for difficult access, additional plumbing or electrical work, or upgrades needed to meet current safety and compliance standards beyond the standard scope. Replacing a solar-boosted system less than five years old also attracts an additional charge. All of it goes in your quote — nothing turns up on the invoice that wasn't quoted.

How we work

How it gets installed

Every heat pump job we do is finished the same way. This is the standard, not the upsell.

A garage heat pump install with the old gas unit removed
  • One team, both trades

    A heat pump needs a plumber and an electrician. We coordinate both and work together so the whole job is managed as one — you don't line up separate contractors yourself.

  • No sales layer

    You deal directly with the licensed tradespeople doing the work — not a call centre or a commissioned salesperson.

  • Sited properly

    A heat pump needs airflow to work. We put it where it can breathe, where the noise won't bother you or the neighbours, and where it's protected from the worst of the weather.

  • Set up to run at the right time

    We set the schedule so it heats on your solar or your cheapest tariff window, not whenever it feels like it. This is where the savings actually come from, and it's the step most often skipped.

  • Old unit taken away

    Your old system is removed and recycled responsibly, and all installation rubbish leaves with us. We hand the space back clean.

What comes off the price

Rebates

Eligible Victorian homes get a Solar Victoria hot water rebate, on top of federal STCs and Victorian Energy Upgrades certificates (VEECs) — all taken straight off your quote. We use eligible, approved products and handle the paperwork, so the discounts come off your price without the admin landing on you.

A heat pump sited clear of windows on a brick wall

Eligibility, briefly: owner-occupier of an existing home (not a new build or rental), replacing a system at least three years old, combined household income of $150,000 or less, and the property hasn't already claimed a Solar Homes hot water or battery rebate. Solar Victoria confirms final eligibility. Choosing an eligible locally-made unit can lift the rebate — ask us and we'll check.

What our customers say

5.0 from 54 Google reviews

Brandon Grant

Brandon Grant

8 August 2026

Ben and the team installed my evnex charger for me, lovely blokes and did a great job. Will definitely have them back out for future electrical work.

Chris Peers

Chris Peers

6 August 2026

These guys are fantastic! Made a stressful problem easy for me and very reasonable fees.

Prab Pandher

Prab Pandher

22 July 2026

Excellent install and service by Revelectrical. Arrived on time, very polite and clean install of the EV charger.

Travel with Me

13 July 2026

I highly recommend RevElectrical. Ben installed my Evnex EV charger, and I couldn't be happier with the service. He was professional, friendly, punctual, and completed the installation to a very high standard. His workmanship was excellent, and he took the time to make sure everything was working perfectly before he left. The whole process was smooth and hassle-free.

D H

13 July 2026

The guys at revelectrical did a great installation, we're very happy with their work! They arrived on time, communicated well and helped with understanding the new setup. They're just what the west needs, when it comes to degasification and going electric, they get it!

Justin Fennessy

Justin Fennessy

12 July 2026

We had a charger installed, an Evnex E2 Core for the Atto 2. Superb job, nicely done, even arranged for a plaster hiccup to be fixed same day. Also installed a surge protector in the fuse box to protect all appliances. Both times on time, efficient, good value and great guys, highly recommend.

Our work

Heat pump installs we have done

  • Heat pump and cylinder installed Heat pump and cylinder installed
  • Unit sited clear of windows Unit sited clear of windows
  • Garage install, gas removed Garage install, gas removed
  • Water and power connections Water and power connections
  • Replacing a gas storage unit Replacing a gas storage unit
  • Running off solar where there is some Running off solar where there is some

Service areas

Wulfe across Melbourne.

We cover all areas of Melbourne. Not on the list? Send your postcode with your enquiry and we'll confirm.

Ready when you are

Thinking about a heat pump?

Send a few photos of your existing system and tell us how many people are in the house. We'll recommend a size and quote it accurately without needing to visit.

What do you need? Pick as many as apply
Photo of your switchboard Optional, but worth it
Photos only · resized here

A photo of your switchboard with the door or lid open, so we can see the main switch and the breakers. Still photos please — we cannot accept video.

We reply within 24 hours, Mon–Sat.

We only use your details to quote your job. No obligation to go ahead.