
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.
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.
In plain terms
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 rate the HP Plus at up to 71% less energy than a conventional electric water heater.
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.
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.
Proven down to −7°C, so a cold Melbourne morning is well inside what it's designed for. Designed for outdoor installation.
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
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.

Suits most Melbourne households — a family with a bathroom or two and normal daily hot water use.
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.
We also install iStore, in 180L and 270L.
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 250L | Wulfe 330L |
|---|---|---|
| Tank | 250 litres | 330 litres |
| Suits | Most family homes | Large families and high demand |
| Refrigerant | R290 natural refrigerant | R290 natural refrigerant |
| Compressor | Inverter driven | Inverter driven |
| Noise | 42 dBA | 42 dBA |
| Tank protection | Three full-length anodes | Three full-length anodes |
| Water temperature | 60°C, 75°C with booster | 60°C, 75°C with booster |
| Cold weather | Proven to −7°C | Proven to −7°C |
| Warranty | 10 years product, 2 years labour | 10 years product, 2 years labour |
| Installation | Outdoor, needs clear airflow | Outdoor, 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

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

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.
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.
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.
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
Every standard heat pump hot water installation covers the following.

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

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

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.

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
6 August 2026
These guys are fantastic! Made a stressful problem easy for me and very reasonable fees.

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
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 and cylinder installed
Unit sited clear of windows
Garage install, gas removed
Water and power connections
Replacing a gas storage unit
Running off solar where there is some Service areas
We cover all areas of Melbourne. Not on the list? Send your postcode with your enquiry and we'll confirm.

Replace inefficient hot water systems with a heat pump. Government rebates available.
More info
Replace old gas and electric cooktops and ovens with electric induction cooking.
More info
Save your excess solar to use later in peak tariff periods. Government rebates available.
More infoReady when you are
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.