Endless hot water on demand. Energy-efficient, space-saving, and reliable. Instant gas hot water systems supplied and installed by Perth’s trusted plumbers. $0 call-out fee during business hours*. Fixed pricing upfront. Same-week installation.
* $0 call-out fee applies during business hours
Proud Plumbing & Gas supplies and installs instant gas hot water systems for homes across Perth. Instant gas (also known as continuous flow) is one of the most efficient ways to heat household water, delivering endless hot water on demand without the standby heat loss of a storage tank.
We supply and install instant gas hot water systems from leading Australian brands Rheem and Rinnai. Whether you’re upgrading from an old electric or gas storage system, or installing instant gas for the first time, our licensed plumbers and gasfitters handle everything from system selection through to commissioning.
Every job comes with our $0 call-out fee during business hours*, a fixed-price quote before we start, and workmanship you can count on. That’s why over 800 Perth customers have left us five-star reviews.
$0 call-out fee during business hours*. Free quotes and same-week installation across Perth metro.
Instant gas hot water systems heat water only when you need it. There’s no tank, no standby gas use, and no waiting. Here’s how a continuous flow system delivers endless hot water on demand.
When you open a hot tap, cold water flows into the wall-mounted continuous flow unit and triggers the system to start.
A high-output gas burner ignites within seconds and rapidly heats the internal copper heat exchanger to your set temperature.
Cold water passes through the heat exchanger and emerges hot, on its way to your tap, shower, or appliance, with no waiting and no tank to refill.
When you close the tap, the burner stops. No standby gas use, no reheating an idle tank, no wasted energy between uses.
Get a fixed-price quote upfront. $0 call-out fee during business hours*. Same-week installation available.
Instant gas hot water has overtaken storage as the system of choice for many Perth households, and for good reason. It combines endless hot water, lower running costs, and a compact, long-lasting design in a single unit.
Without a tank, instant gas systems heat water as it flows. No waiting for a tank to reheat, no cold-shower surprises after a teenager’s marathon shower, and no rationing during peak times.
Larger units (26L and 32L flow rates) comfortably support multiple outlets at the same time. The right-sized system can handle two showers and a kitchen tap running at once.
Storage tanks lose heat 24/7 even when you’re not using hot water. Instant gas eliminates that standby loss entirely, only firing when a tap opens, which translates to noticeably lower running costs.
Today’s Rheem and Rinnai instant gas systems achieve some of the highest energy ratings in their class, using significantly less gas to deliver the same volume of hot water as older systems.
The compact wall-mounted unit fits outside the home or in a tight cupboard, freeing up the floor space taken by a bulky tank. Ideal for smaller homes, renovations, and townhouses.
Quality continuous flow systems typically last well over 15 years with regular servicing, often outlasting traditional storage tanks. Less standby use means less wear over the system’s life.
Endless hot water with lower running costs. Free on-site assessment with $0 call-out fee during business hours*.
We’re one of Perth’s highest-rated plumbing companies on Google. Over 800 customers have rated us 4.9 out of 5 – and most of that reputation was built on doing hot water installations right the first time.
We install Rheem and Rinnai – two of Australia’s most trusted instant gas hot water brands. Both deliver proven performance, strong manufacturer warranties, and a full range of flow rates.
As a family-owned Perth business, we’ve been installing instant gas, gas storage, electric, and solar hot water systems for over 15 years. We know which systems suit Perth homes and which to avoid.
We don’t charge you just to show up during business hours. You get a free on-site assessment and a fixed-price quote before any work begins. *Applies during business hours.
Every job is completed by a current WA-licensed plumber (PL 9874) and certified gasfitter (GF 014602), fully insured. We supply gas compliance certificates for every installation that requires one.
We quote a fixed price before we start and that’s the price you pay. Your installation cost is locked in – no hourly rates, no hidden extras, no surprises.
Switching to instant gas hot water is straightforward. Here’s exactly what to expect when you choose Proud Plumbing and Gas.
We visit your home, check your gas connection, household hot water demand, and the best mounting location. We then recommend the right flow rate and model for your needs.
You receive a clear written quote covering the unit and full installation. No hourly rates, no hidden extras, ever.
Our licensed plumbers and gasfitters install your new instant gas hot water unit, usually in a single day. We handle plumbing, gas, and electrical connections.
We commission the system, test for safety and performance, and walk you through how it works. Hot water is back online the same day.
For most Perth metro suburbs, we can install your new instant gas hot water system within a week. $0 call-out fee during business hours*.
Regular maintenance protects your investment, extends system life, and keeps your instant gas hot water running safely and efficiently. We offer comprehensive maintenance and support tailored to your continuous flow unit.
Regular servicing is the single biggest factor in keeping your instant gas system running safely, efficiently, and reliably. We recommend a service every 12 months. Our licensed plumbers and gasfitters inspect every key component:
During every routine service we go beyond inspection, proactively heading off problems before they turn into costly breakdowns or unexpected cold showers:
Protect your investment, extend system life, and keep your hot water running safely. Same-week bookings available across Perth metro.
Got questions about instant gas hot water systems in Perth? Here are the things our customers ask most often.
Instant gas (continuous flow) heats water as it passes through the unit, with no tank. You only heat what you use, so there’s no standby gas consumption and no waiting for a tank to refill. Gas storage heats and stores hot water in an insulated tank, ready to deliver high volumes on demand. Instant gas is generally more efficient and never runs out, while gas storage can deliver bigger volume bursts. We help you choose the right type during the free site assessment.
Correct. Because there’s no tank, an instant gas unit heats water continuously for as long as the tap is open. Back-to-back showers, deep baths, and long laundry cycles are no problem. The only thing to size correctly is the flow rate of the unit, so it can keep up with how many outlets you run at once.
Most households save on running costs after switching to instant gas. Storage tanks lose heat 24/7 even when no hot water is being used, while instant gas only fires when a tap opens. Compared to electric storage, the savings are typically larger again because gas is generally cheaper than electricity per unit of heat. We give you a clear cost comparison during the free site assessment.
Flow rate is measured in litres per minute and determines how many outlets the system can run at once. As a guide: 16L suits 1 bathroom homes, 20L handles 2 bathrooms with light overlap, 26L easily covers 2-3 bathrooms running at the same time, and 32L is best for large homes with multiple bathrooms in simultaneous use. We size your system during the free site assessment so you don’t overpay for capacity you don’t need, or undersize and lose pressure when more than one tap is running.
Both. Most instant gas units are available in either natural gas (mains gas) or LPG (bottled gas) versions. Natural gas is typically cheaper to run if your home is already connected. LPG is a great option for properties without mains gas access. We confirm the right gas type for your property during the free site assessment.
We install Rheem and Rinnai instant gas hot water systems. Both are leading Australian brands with proven performance, strong manufacturer warranties, and a full range of flow rates to suit any household. We recommend the right system based on your home, hot water demand, gas type, and budget.
Yes. Many of our instant gas installations are upgrades from existing electric or gas storage systems. As long as your property has natural gas connected (or LPG can be installed) and the supply line is sized correctly, the changeover is straightforward. Households switching from electric storage typically see the biggest drop in running costs.
We recommend servicing your instant gas hot water system every 12 months. Annual servicing keeps the unit running safely and efficiently, identifies issues early, and extends the life of the heat exchanger. Many manufacturer warranties also require regular servicing to remain valid – so it’s well worth scheduling.
For most Perth metro suburbs, we can install a new instant gas hot water system within a week of quoting. Standard like-for-like swaps are usually completed in a single day. If your existing hot water system has failed, we prioritise rapid response so you’re not without hot water for long.
We supply and install instant gas hot water systems across the entire Perth metropolitan area.
Don’t see your area? We likely cover it. View all service locations or call us on (08) 6185 3008.
Need a new instant gas hot water system installed in Perth? We offer free on-site assessments with $0 call-out fee during business hours* – so there is no cost to find out which system is right for your home. Fill in the form or call us directly on (08) 6185 3008 and we’ll arrange a time that suits you. We cover the entire Perth Metro area with same-week installation.
