Mon–Fri 7am–7pm · Sat 7am–1pm

Instant Gas Hot Water Installation & Replacement Specialists in Perth

Upgrade to a high-efficiency continuous flow gas system for powerful, instant hot water. Our licensed Perth plumbers deliver expert installations, safe replacements, and dependable results for homes of all sizes.

5.0 from 160+ Google reviews (opens Google reviews in a new tab)
  • Licensed Hot Water Technicians
Instant gas hot water unit
  • Licensed & InsuredPL 6567 · GF 9850
  • Same-Day ServiceSame-day repairs available
  • Free QuotesUpfront fixed pricing
  • Based in DianellaServicing the Perth metro area
About the service

About Our Instant Gas Systems

Instant gas hot water systems (also known as continuous flow systems) provide endless hot water by heating water only when you need it. They’re compact, energy-efficient, and ideal for homes wanting reliable, on-demand performance without a storage tank.

Pacer Plumbing supplies and installs high-quality instant gas systems from leading brands, ensuring your new unit is correctly sized, safely installed, and optimised for long-term reliability. Whether you’re upgrading from an old storage system or replacing a faulty continuous flow unit, our licensed gas plumbers deliver expert advice and dependable installation across Perth.

  • Energy-Efficient Continuous Flow Systems
  • Fully Licensed, Insured & Gas-Certified Installers
  • Supply & Install All Major Brands

Common Issues We Fix

  • No hot water or fluctuating temperature
  • System cutting out or shutting down
  • Pilot light or electronic ignition failing
  • Faulty gas valves, burners, or sensors
  • Leaking pipework, fittings, or relief valves

Book your continuous flow installation or repair today and enjoy powerful, efficient hot water — installed by Perth’s trusted gas specialists.

Supplied & installed

Our Recommended Instant Gas Hot Water Systems

Bosch 10H Hydro Powered 10L 4.6 Star Continuous Flow Gas Water Heater (50°C Preset)

Bosch 10H Hydro Powered 10L 4.6 Star Continuous Flow Gas Water Heater (50°C Preset)

A compact and efficient 10L continuous flow gas system ideal for small households, units, and single-bathroom homes. With a 4.6-star energy rating and 50°C preset for safety, it delivers reliable instant hot water with minimal running costs.

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Rinnai Infinity continuous flow gas hot water unit

Rinnai Infinity INF12N50MA 12L 6.2 Star Continuous Flow Gas Water Heater (50°C Preset)

A compact and efficient 12L continuous flow gas system ideal for small households, units, and single-bathroom homes. With a 6.2-star energy rating and 50°C preset for safety, it delivers reliable instant hot water with minimal running costs.

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Rinnai B26 continuous flow gas hot water unit

Rinnai Builders B26N50A 26L 6 Star Natural Gas Continuous Flow Hot Water Heater (50°C Preset)

A powerful 26L continuous flow system ideal for medium to large households. With a strong 6-star energy rating and 50°C preset for safety, the Rinnai B26 delivers consistent, instant hot water for multiple outlets at once — perfect for family homes.

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Rinnai B26 continuous flow gas hot water unit

Rinnai Builders B20N50A 20L 6 Star Natural Gas Continuous Flow Hot Water Heater (50°C Preset)

A highly efficient 20L continuous flow gas system ideal for small to medium households. With a premium 6-star energy rating and a 50°C preset for added safety, the Rinnai B20 delivers reliable, instant hot water for 1–2 bathrooms with low running costs.

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Rinnai B26 continuous flow gas hot water unit

Rinnai Builders B16N50A 16L 6 Star Natural Gas Continuous Flow Hot Water Heater (50°C Preset)

A compact and efficient 16L continuous flow gas hot water system ideal for small homes, units, and single-bathroom properties. With a strong 6-star energy rating and a 50°C preset for safety, the Rinnai B16 provides reliable, instant hot water with low running costs.

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Rheem continuous flow gas hot water unit

Rheem Metro 876A26 26L 6 Star Compact Gas Hot Water Systems

A powerful and compact 26L continuous flow gas hot water system designed for medium to large households. With an impressive 6-star energy rating, the Rheem Metro 26 delivers strong, reliable hot water to multiple outlets simultaneously while keeping running costs low.

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Rheem continuous flow gas hot water unit

Rheem Integrity 876A20NF 20L 6 Star Continuous Flow Gas Water Heater (50°C Preset)

A highly efficient 20L continuous flow gas system ideal for small to medium homes. With a premium 6-star energy rating and a 50°C preset for added safety, the Rheem Integrity 20 delivers reliable, instant hot water for 1–2 bathrooms with excellent running cost savings.

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Rheem continuous flow gas hot water unit

Rheem Integrity 876A12NF 12L 6 Star Continuous Flow Gas Water Heater (50°C Preset)

A compact and highly efficient 12L continuous flow gas system ideal for small homes, units, and single-bathroom properties. With an impressive 6-star energy rating and a safe 50°C preset, the Rheem Integrity 12 delivers reliable instant hot water at exceptionally low running costs.

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*Starting price for a standard like-for-like replacement. Final price confirmed after a free quote.

Reliable Hot Water Service Perth Homeowners Trust

When you choose Pacer Plumbing, you’re choosing a team that values punctuality, honesty, and quality workmanship. Our vans are fully stocked with replacement parts, meaning most hot water issues can be fixed on the first visit. From gas system repairs to complete electric unit installations, we provide dependable service every time — no call-out surprises, just results you can rely on.

Why Perth Homeowners Choose Pacer Plumbing

Same-Day Service

We’ll restore your hot water quickly and efficiently.

Upfront Fixed Pricing

Know the cost before we start — no hidden fees.

Licensed & Insured Technicians

Qualified experts for every job.

160+ Google Reviews

Trusted by families and businesses across Perth.

Gas instant installs

Photos from jobs we have done.

Two Rinnai HeavyDuty continuous flow gas hot water units on a brick wall with gas isolation valves and copper pipework below
Rinnai continuous flow gas hot water unit mounted on a rendered wall beside a window, with copper and black pipework
Rheem continuous flow gas hot water unit on an outside wall with copper gas and water pipework

See more of our work

We Work With All Major Hot Water Brands

We supply, service, and install all leading Australian and international systems

Pacer Plumbing only installs trusted, high-efficiency brands — ensuring reliability, performance, and long-lasting value.

Tradelink logoRaymor logoStiebel Eltron logoBosch logoRinnai logo

Need your hot water fixed today?

Open Monday to Friday 7am to 7pm and Saturday 7am to 1pm.

Book Your Service
Reviews

What Our Customers Say

We take pride in providing quality plumbing and gas solutions across Perth. Here’s what our happy clients have to say about their experience with Pacer Plumbing.

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