Rinnai Hotflo 135L Natural Gas Storage Hot Water System

The Rinnai Hotflo 135L Natural Gas Storage Hot Water System is available from Installed Today as a supply-only natural gas storage water heater or as a complete supply and install package in selected Brisbane and Gold Coast service areas.

Choose the unit only if you already have a licensed gas fitter arranged, or check your supply and install package to confirm natural gas suitability, valve kit requirements, outdoor installation location, water pressure, gas connection, access and available installation timeframes before checkout.

The Rinnai Hotflo 135L natural gas storage water heater is a medium-capacity external gas hot water system designed for reliable hot water supply in medium-sized households. With 135L rated capacity, 209L first hour delivery, 4.7 Star energy rating, vitreous enamel lined steel tank, inbuilt anode protection, natural gas connection, and an 8-year cylinder warranty, it is a practical replacement option for homes already using natural gas storage hot water.

About the Rinnai Hotflo 135L Natural Gas Storage Water Heater

The Rinnai Hotflo 135L Natural Gas Storage Hot Water System is designed for medium-sized households needing reliable stored hot water with strong, consistent pressure to multiple outlets.

Unlike a continuous flow gas water heater, the Rinnai Hotflo 135L stores hot water in a tank and recovers the water as it is used. This can make it a practical option for customers who prefer a familiar gas storage replacement rather than switching to electric, heat pump or instantaneous gas.

The 135L model is suitable for outdoor installation only and is commonly used to replace existing external natural gas storage hot water systems where the location, gas supply, plumbing, valves and water pressure are suitable.

Buy Rinnai Hotflo 135L Natural Gas Supply Only

Order the Rinnai Hotflo 135L Natural Gas Storage Hot Water System online as a supply-only hot water system. This option is ideal if you already have a licensed gas fitter or plumber arranged and only need the unit supplied.

The supply-only product price is for the hot water system itself. Installation, old system removal, disposal, valve kits, gas fitting work, plumbing alterations, compliance upgrades and additional site requirements are not included unless selected separately as add-ons.

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Rinnai Hotflo 135L Natural Gas Supplied and Installed in Brisbane & Gold Coast

Installed Today can supply and install the Rinnai Hotflo 135L Natural Gas Storage Hot Water System in selected Brisbane and Gold Coast service areas.

This option is designed for customers who want the gas hot water system supplied and professionally installed through one streamlined online order. The supply and install pathway helps confirm whether this system suits your property, whether the existing gas type is natural gas, whether a valve kit is required, whether the current location is suitable, and whether any additional installation add-ons may be needed before checkout.

The installed-from price is based on the product plus the matching standard installation option. Final pricing may vary depending on natural gas supply, valve requirements, access, existing system condition, pipework changes, gas fitting requirements, compliance requirements, old system removal or disposal selections and selected add-ons.

Rinnai Hotflo 135L Natural Gas Installation in Brisbane

For Brisbane customers, the Rinnai Hotflo 135L Natural Gas Storage Water Heater can be ordered with supply and install options through Installed Today. This is suitable for homes replacing an existing outdoor natural gas storage hot water system where the current location, plumbing, gas supply and clearances are suitable for the selected installation option.

The 135L size can be a practical fit for Brisbane homes, townhouses, rental properties and medium-sized households where natural gas storage hot water is already installed and the customer wants a dependable replacement with strong first hour delivery.

Customers in selected Brisbane suburbs can complete the installation check before checkout to confirm whether standard gas storage installation, valve kit selection, gas fitting work, extra pipework, old system removal or disposal options may be required.

This makes the page suitable for customers searching for Rinnai Hotflo 135L natural gas installation Brisbane, Rinnai natural gas storage hot water supplied and installed Brisbane, and 135L natural gas storage hot water replacement Brisbane.

Rinnai Hotflo 135L Natural Gas Installation in Gold Coast

Gold Coast customers can also order the Rinnai Hotflo 135L Natural Gas Storage Hot Water System with supply and install options in selected service areas.

This pathway is useful for homeowners, landlords, property managers and renovators who want the product and licensed gas installation organised together instead of buying the unit separately and arranging trades afterwards.

Complete the supply and install check to confirm whether the existing setup is suitable and whether additional items such as valve kits, gas fitting work, pipework changes, access requirements, compliance work or old system disposal may be required.

This helps customers searching for Rinnai Hotflo 135L natural gas installed Gold Coast, Rinnai natural gas storage installation Gold Coast, and 135L natural gas hot water supply and install Gold Coast.

Is the Rinnai Hotflo 135L Natural Gas Right for Your Home?

The Rinnai Hotflo 135L Natural Gas Storage Hot Water System may be suitable if you are replacing an existing outdoor natural gas storage water heater and want a reliable medium-capacity system from a recognised hot water brand.

It is commonly suited to medium-sized households, townhouses, rental properties and homes already connected to natural gas.

Rinnai lists the Hotflo 135L as ideal for up to 5 people in warm climates and up to 4 people in cool climates, depending on usage. Real-world suitability depends on shower length, outlet demand, household habits, gas supply, water pressure, installation location and climate.

This system may suit you if:

• You are replacing an existing outdoor natural gas storage hot water system

• Your property is connected to natural gas

• You want a 135L gas storage water heater

• You want up to 209L first hour delivery

• You want strong, consistent pressure to multiple outlets

• You want a 4.7 Star gas storage system

• Your current location suits an outdoor gas storage replacement

• Your natural gas supply, water pressure and access are suitable

• You want the choice of supply only or supply and install

Extra work may be required if:

• The system is being moved to a new location

• The existing unit is LPG, not natural gas

• Existing valves are old, missing or non-compliant

• The natural gas connection needs alteration

• Extra pipework or plumbing changes are needed

• Water pressure is outside the required range

• Access is restricted

• The existing base or support area is unsuitable

• The old system needs additional removal or disposal work

• The installation location does not meet outdoor clearance requirements

Key Features of the Rinnai Hotflo 135L Natural Gas

• Natural gas storage hot water system

• Product code GHF4135N

• Suitable for medium-sized households

• Ideal for up to 5 people in warm climates, depending on usage

• Ideal for up to 4 people in cool climates, depending on usage

• 209L first hour delivery capacity

• 135L rated storage capacity

• 4.7 Star energy rating

• Vitreous enamel lined steel tank

• Inbuilt anode protection to help extend tank life

• Strong, consistent pressure to multiple outlets

• Pressure temperature relief valve included

• External use only

• Natural gas model

• Thermostatically controlled operation

• Automatic safety temperature shut-off

• 17 MJ/hr gas consumption

• Rp 3/4 water connections

• 1000 kPa relief valve setting

• 850 kPa expansion control setting where required

• 500 kPa recommended pressure limiting valve where required

• 8-year cylinder warranty under Rinnai warranty terms

Quick Specs

Brand: Rinnai
Range: Hotflo Gas Storage
Product: Rinnai Hotflo 135L Gas Hot Water Storage
Product Code: GHF4135N
Gas Type: Natural Gas
System Type: Gas Storage Hot Water System
Installation Type: External use only
Rated Capacity: 135L
First Hour Delivery: 209L
Energy Rating: 4.7 Star
Warm Climate Suitability: Up to 5 people, depending on usage
Cool Climate Suitability: Up to 4 people, depending on usage
Tank Lining: Vitreous enamel lined steel
Anode Protection: Inbuilt sacrificial anode
Gas Consumption: 17 MJ/hr
Water Connections: Rp 3/4
Connection Size: 20mm
Relief Valve Setting: 1000 kPa
Expansion Control Setting: 850 kPa where required
Maximum Water Supply Pressure With ECV: 680 kPa
Maximum Water Supply Pressure Without ECV: 800 kPa
Recommended PLV: 500 kPa where required
Overall Height: 1579mm
Outlet Height: 1316mm
Inlet Height: 328mm
Empty Weight: 68kg
Cylinder Warranty: 8 years, subject to Rinnai warranty terms

Natural Gas Storage Hot Water

This product is the natural gas version of the Rinnai Hotflo 135L gas storage water heater.

It is designed for properties connected to natural gas. Natural gas and LPG models are not interchangeable, so the correct gas type must be selected before ordering or installation.

If your home is connected to mains natural gas, this natural gas model is the correct product pathway. If your home uses bottled gas, choose the LPG version instead.

209L First Hour Delivery

The Rinnai Hotflo 135L Natural Gas has a listed first hour delivery capacity of 209 litres.

First hour delivery combines the stored hot water in the tank with the system’s recovery performance. This helps show how much hot water the unit can deliver during the first hour of use under stated conditions.

For medium-sized households, this can help support normal routines such as showers, kitchen use and laundry demand.

4.7 Star Gas Efficiency

The Rinnai Hotflo 135L Natural Gas Storage Water Heater has a 4.7 Star energy rating, making it a practical option for customers replacing older natural gas storage systems.

Actual running costs still depend on household hot water use, natural gas pricing, thermostat settings, installation condition, climate and how the system is used.

Vitreous Enamel Lined Tank

The Rinnai Hotflo 135L uses a vitreous enamel lined steel tank designed to support long-term durability.

Vitreous enamel lining helps protect the steel tank surface from stored hot water conditions. The system also includes inbuilt anode protection, which helps protect the cylinder as part of the tank’s corrosion protection design.

Correct installation, water pressure control, water quality, valve setup and servicing conditions can all affect hot water system lifespan and warranty outcomes.

Inbuilt Anode Protection

The Rinnai Hotflo 135L Natural Gas Storage Water Heater includes inbuilt anode protection to help extend the life of the hot water tank.

Anodes are designed to gradually wear over time as part of protecting the cylinder. This makes maintenance and water quality checks important for long-term performance.

External Installation Only

The Rinnai Hotflo 135L Natural Gas Storage Hot Water System is designed for external use only.

It should not be installed internally. Gas hot water systems must be installed in accordance with manufacturer instructions, gas fitting rules, ventilation requirements, clearance requirements and local compliance standards.

Strong Pressure to Multiple Outlets

The Rinnai Hotflo 135L is designed to deliver strong, consistent pressure to multiple outlets where the property’s plumbing and water pressure conditions are suitable.

This makes it a practical replacement option for homes that already have a natural gas storage system and want familiar stored hot water performance.

Thermostatic Safety Control

The Rinnai Hotflo 135L is thermostatically controlled and includes automatic safety temperature shut-off.

This helps control stored water temperature and adds protection as part of the system’s safety design.

Common Uses

The Rinnai Hotflo 135L Natural Gas Storage Hot Water System can be suitable for:

• Natural gas storage hot water replacement

• External gas storage installations

• Medium-sized households

• Townhouses

• Rental properties

• Investment homes

• Homes connected to natural gas

• Properties replacing older gas storage units

• Homes wanting stored gas hot water

• Homes wanting strong pressure to multiple outlets

• Supply-only orders where a licensed gas fitter is already arranged

• Supply and install orders in selected Brisbane and Gold Coast areas

Suitability depends on natural gas supply, installation location, water pressure, access, pipework condition, household usage and compliance requirements.

Why Order From Installed Today?

Installed Today gives customers a simple way to order the Rinnai Hotflo 135L Natural Gas Storage Hot Water System as either a product-only purchase or a supply and install package in selected Brisbane and Gold Coast service areas.

You can compare the unit-only price, check the installed-from price, complete the installation compatibility check and select matching gas hot water installation add-ons before checkout.

Why customers choose Installed Today:

• Supply only or supply and install options

• Installed-from pricing shown separately

• Compatibility check before checkout

• Valve kits and installation add-ons available online

• Brisbane and Gold Coast service area support

• Suitable for natural gas storage replacement orders

• Clear product and installation pathway before checkout

• Product-only ordering for customers with their own licensed gas fitter

• Supply and install pathway for selected natural gas storage upgrades

• Practical 135L medium-capacity gas storage option

• Rinnai gas hot water system from a recognised hot water brand

Frequently Asked Questions

Can I buy the Rinnai Hotflo 135L Natural Gas supply only?

Yes. You can buy the Rinnai Hotflo 135L Natural Gas as a supply-only product if you already have a licensed gas fitter or plumber arranged. The unit-only price does not include installation, old system removal, disposal, valve kits, gas fitting work, plumbing alterations or compliance upgrades unless selected separately.

Can I get the Rinnai Hotflo 135L Natural Gas installed in Brisbane?

Yes. Supply and install options are available in selected Brisbane service areas. Complete the installation check to confirm whether the standard gas storage installation option suits your property and whether additional add-ons may be required.

Can I get the Rinnai Hotflo 135L Natural Gas installed in Gold Coast?

Yes. Selected Gold Coast service areas are available. Installation suitability depends on access, natural gas supply, water pressure, existing plumbing, valve requirements, clearances, compliance and selected add-ons.

Is installation included in the product price?

No. The main product price is the unit-only price. The installed-from price is shown separately so you can compare supply only against supply and install.

What does the installed-from price include?

The installed-from price is based on the Rinnai Hotflo 135L Natural Gas unit plus the matching standard installation option. Final pricing may vary depending on valve kits, gas fitting work, pipework, access, compliance, old system removal or disposal selections and other selected add-ons.

Do I need a valve kit?

Many hot water replacements require compatible valves to meet installation and compliance requirements. The installation check helps identify whether a valve kit is recommended for your order.

Is this Rinnai Hotflo 135L natural gas or LPG?

This page is for the natural gas version of the Rinnai Hotflo 135L. The correct gas type must match the property’s supply before ordering or installation.

What is the product code?

The natural gas product code is GHF4135N.

Can the Rinnai Hotflo 135L Natural Gas be installed indoors?

No. The Rinnai Hotflo 135L gas storage water heater is designed for external use only.

What is the rated capacity?

The Rinnai Hotflo 135L has a 135L rated capacity.

What is the first hour delivery?

The Rinnai Hotflo 135L has a listed 209L first hour delivery capacity.

How many people is the Rinnai Hotflo 135L suitable for?

Rinnai lists the Hotflo 135L as ideal for up to 5 people in warm climates and up to 4 people in cool climates, depending on usage. Actual suitability depends on shower length, outlet demand, household habits and installation conditions.

What is the energy rating?

The Rinnai Hotflo 135L has a 4.7 Star energy rating.

What is the tank lining?

The Rinnai Hotflo 135L uses a vitreous enamel lined steel tank.

Does the Rinnai Hotflo 135L have an anode?

Yes. The Rinnai Hotflo 135L includes inbuilt anode protection to help extend the life of the hot water tank.

What is the gas consumption?

The Rinnai Hotflo 135L is listed with 17 MJ/hr gas consumption.

What is the relief valve setting?

The Rinnai Hotflo 135L has a listed 1000 kPa relief valve setting.

What is the expansion control setting?

The Rinnai Hotflo 135L has a listed 850 kPa expansion control setting where required.

What is the maximum water supply pressure?

The Rinnai Hotflo 135L lists 680 kPa maximum water supply pressure with an expansion control valve and 800 kPa maximum water supply pressure without an expansion control valve.

What are the dimensions?

The Rinnai Hotflo 135L has an overall height of 1579mm, outlet height of 1316mm and inlet height of 328mm.

How much does the Rinnai Hotflo 135L weigh?

The Rinnai Hotflo 135L has an empty weight of 68kg.

What is the warranty on the Rinnai Hotflo 135L?

The Rinnai Hotflo 135L is listed with an 8-year cylinder warranty, subject to Rinnai warranty terms and conditions.

Is the Rinnai Hotflo 135L good for replacing an old natural gas storage hot water system?

Yes. The Rinnai Hotflo 135L Natural Gas can be a practical replacement option where the existing system is natural gas storage, the installation location is external, and the gas supply, water pressure, pipework and compliance requirements are suitable.

What is the difference between the Rinnai Hotflo 135L and 170L gas storage models?

The Rinnai Hotflo 170L provides more storage capacity and higher first hour delivery than the 135L model. The 135L model can suit medium-sized households, while the 170L model may be better for larger households or higher hot water demand.

What is the difference between the natural gas and LPG versions?

The natural gas version is designed for homes connected to mains natural gas. The LPG version is designed for properties using bottled LPG. The correct gas type must be selected before ordering or installation.

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When you choose "Installed Today" for your installation needs, you're not just getting a product; you're gaining access to a network of rigorously verified installers dedicated to providing you with an exceptional service experience. Here's what you can expect when you opt for an installation by an "Installed Today" verified installer:

Professional and Efficient Service

• Prompt Communication: Our verified installers will contact you within 2 business hours of receiving your order details to confirm and begin scheduling your installation at the earliest convenience.
• Expert Installation: All "Installed Today" installers are highly skilled and qualified, ensuring your product is installed according to the highest industry standards and specific regulations in your area.
• Clear and Professional Communication: From the moment they receive your order until the completion of your installation, our installers maintain clear and professional communication, providing you with all necessary information regarding your installation.

Peace of Mind

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• Customer Dispute Resolution: In the rare event of a dispute, our installers are committed to acknowledging and initiating the resolution process within 1 business day, aiming for a swift and satisfactory resolution within 5 business days.
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Additional Services at Transparent Rates

• Beyond Basic Installation: Our verified installers offer a range of additional services to complement your installation. All available services and their set rates are communicated upfront, ensuring no surprises.

By choosing "Installed Today," you're not just installing a product; you're investing in a seamless, quality service that values your time and peace of mind. Trust in our verified installers to exceed your expectations with their professionalism, expertise, and commitment to excellence.

This product description outlines the benefits and assurances provided by "Installed Today" verified installers, designed to inform and reassure customers about the high level of service they can expect.

DELIVERY TIMES WITH INSTALLATION - HOT WATER SYSTEMS EXC. HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 2 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 3 business days

DELIVERY TIMES WITHOUT INSTALLATION - HOT WATER SYSTEMS EXC. HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 3 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Harvey Bay, Cairns and Townsville - up to 5 business days

Metropolitan Cities - up to 5 Business Days

Listed Metropolitan Centers - up to 10 Business Days

DELIVERY TIMES WITH INSTALLATION - HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 2 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

DELIVERY TIMES WITHOUT INSTALLATION - HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 5 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Metropolitan Cities - up to 5 Business Days

Listed Metropolitan Centers - up to 10 Business Days

DELIVERY TIMES WITH/WITHOUT INSTALLATION - PUMPS AND WATER FILTERS

Greater Brisbane and Gold Coast - up to 5 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Harvey Bay, Cairns and Townsville - up to 10 business days

**PLEASE NOTE ORDERS OUTSIDE OF THESE AREAS WILL BE REFUNDED AS SOON AS POSSIBLE**

SERVICED METROPOLITIAN CENTRES & CITIES

-Brisbane (EXCLUDING BAY ISLANDS)

-Gold Coast

-Sunshine Coast

-Toowoomba

-Coffs Harbour

-Tamworth

-Canberra

-Sydney (EXCLUDING ISLANDS)

-Bathurst

-Melbourne

-Ballarat

-Geelong

-Adelaide

-Perth

-Darwin

-Cairns

-Townsville

-Harvey Bay

-Rockhampton

-Bundaberg

-Tweed Heads

-Wollongong