Instant Hot Water

Looking for endless hot water without running out? Instant hot water units (also known as continuous flow or tankless hot water systems) deliver hot water on demand, making them a popular choice for Sunshine Coast homes and businesses.

At Allied Plumbing, we supply, install, repair, and replace instant hot water systems across the Sunshine Coast, providing reliable solutions tailored to your household or commercial needs.

Allied Plumbing provides professional hot water system installation, repairs, and replacements for residential and commercial properties. As a trusted hot water system plumber, we service all major brands and system types, including electric, gas, solar, and heat pump hot water systems.

Whether your system needs urgent repairs, a full replacement, or a new installation, we ensure every hot water system operates safely, efficiently, and in full compliance with current Australian standards. Our focus is on restoring reliable hot water quickly while delivering long-term performance and energy-efficient solutions you can depend on..

What Is an Instant Hot Water Unit?

Instant Hot Water Repairs & Replacements

An instant hot water unit heats water only when you need it, rather than storing hot water in a tank. This means:

  • No running out of hot water

  • Greater energy efficiency

  • Compact, space-saving design

  • Lower ongoing energy costs

Instant hot water systems are ideal for families, renovations, and properties looking to upgrade from traditional storage tanks..

If your instant hot water unit isn’t performing properly — fluctuating temperatures, error codes, low flow, or no hot water — Allied Plumbing can help. We offer fast diagnosis, reliable repairs, and cost-effective replacement options when needed.

We service and repair most major instant hot water brands and respond promptly across the Sunshine Coast.

logo

LOGO

logo

logo

Logo

LOGO

Supply & Installation of Instant Hot Water Systems

Rheem 26L Gas Continuous Flow Hot WaterSystem 50 Degrees Preset LPG Rheem 26L Gas Continuous Flow Hot WaterSystem 50 Degrees Preset LPG
Quick View
Rheem 26L Gas Continuous Flow Hot WaterSystem 50 Degrees Preset LPG
$1,810.00

Rheem 26L Gas Continuous Flow Hot Water System

Model: 50°C Preset – LPG

Never run out of hot water again. The Rheem 26L is the powerhouse of continuous flow systems, specifically engineered for larger Sunshine Coast homes that demand performance and reliability.

Key Features & Benefits

  • Endless Hot Water: Delivers a powerful 26 litres per minute, ensuring a steady stream of hot water even during peak demand.

  • Designed for Families: The ideal capacity for homes with 2 to 2.5 bathrooms.

  • Smart Safety (Flamesafe®): Built-in overheat protection automatically shuts down the unit before overheating can occur, protecting your family and your investment.

  • Precision Control: Compatible with remote temperature controllers, allowing you to set the perfect, safest temperature for your kitchen and bathrooms independently.

  • Preset for Safety: Factory-set at 50°C to reduce the risk of scalding without compromising on performance.

Our fully licensed and insured Sunshine Coast plumbers install instant hot water units to Australian Standards, ensuring safe operation and long-term performance. We work with leading brands and can recommend the right system based on:

  • Household size and usage

  • Gas or electric availability

  • Water pressure and flow rates

  • Budget and efficiency goals

We provide honest advice, upfront pricing, and quality workmanship on every installation.

Thermann G-Series 16L 50 degree N/G Continuous Flow Hot Water System Thermann G-Series 16L 50 degree N/G Continuous Flow Hot Water System
Quick View
Thermann G-Series 16L 50 degree N/G Continuous Flow Hot Water System
$1,720.00

Thermann G-Series 16L Continuous Flow Hot Water System

Model: 50°C Preset – Natural Gas (N/G)

Experience the luxury of never running out of hot water. The Thermann G-Series combines Japanese engineering with a sleek, modern design to provide an energy-efficient solution that only heats water when you need it.

Key Features & Benefits

  • Tailored for Small Homes: With a 16L per minute flow rate, this unit is perfectly sized for 1-bathroom homes or apartments with 1–3 occupants.

  • Superior Efficiency: Boasts a massive 6.8-star energy rating, making it one of the most efficient non-condensing units on the market—helping you lower your gas bills.

  • Sleek & Durable: Features a striking Gunmetal finish and a compact footprint that saves space and looks great on any exterior wall.

  • Safety First: Factory preset to 50°C, eliminating the need for a separate tempering valve in many installations and preventing accidental scalding.

  • Advanced Control: Compatible with optional universal controllers, allowing you to customize your water temperature for different rooms.

Let’s Work Together

If you're interested in working with us, complete the form with a few details about your project. We'll review your message and get back to you within 48 hours.