Vulcan 170L Natural Gas Storage Hot Water System

The Vulcan 170L Natural Gas Storage Hot Water System is available from Installed Today as a supply-only natural gas storage hot water unit or as a complete supply and install package in selected Brisbane and Gold Coast service areas, where available.

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

The Vulcan 170L Natural Gas storage water heater is a 4 Star gas storage system designed for medium to large families that want stored hot water with gas recovery. With 170L storage capacity, outdoor-only installation and a natural gas-only model, it is a practical replacement option for homes connected to mains natural gas.

About the Vulcan 170L Natural Gas Water Heater

The Vulcan 170L Natural Gas Water Heater stores hot water in a vitreous enamel lined cylinder and uses natural gas to reheat the stored water.

Unlike continuous flow gas hot water, a gas storage system keeps a volume of hot water ready for use. This can suit homes that prefer a traditional storage-style hot water system or are replacing an older external natural gas storage unit.

This page is for the natural gas model only. The current Vulcan 170L model is listed as natural gas only, so it should not be treated as an LPG unit.

Buy Vulcan 170L Natural Gas Supply Only

Buy the Vulcan 170L Natural Gas supply only if you already have a licensed plumber and gas fitter arranged for installation.

The product price is for the unit only. Installation, valve kits, old system removal, disposal, gas fitting changes, pipework changes, pressure control, bases, trim kits, access work and compliance upgrades are not included unless selected separately as add-ons or part of an available install package.

Common search terms this product suits include:

• Vulcan 170L natural gas water heater price

• Vulcan 170L natural gas hot water system

• Vulcan 648170NG gas water heater

• 170L natural gas storage hot water system

• Natural gas storage hot water replacement

• Outdoor natural gas hot water system

• 4 Star natural gas storage water heater

• Vulcan 170L supply only

Vulcan 170L Natural Gas Supplied and Installed in Brisbane & Gold Coast

The Vulcan 170L Natural Gas Storage Hot Water System can be ordered with a supply and install option in selected Brisbane and Gold Coast service areas, where available.

The installed-from price is based on the product plus the selected standard installation option. Final pricing can vary depending on site conditions and any selected add-ons.

Extra work or add-ons may be required for:

• Valve kit replacement

• Old system removal

• Disposal

• Natural gas pipe sizing changes

• Gas meter or supply suitability checks

• Pipework changes

• Water pressure control

• Base or stand requirements

• Trim kit requirements

• Restricted access

• Relocation from the existing hot water position

• Non-compliant existing installation

• Outdoor clearance issues

• Delivery access or lifting requirements

Vulcan 170L Natural Gas Installation in Brisbane

Installed Today can help Brisbane customers order the Vulcan 170L Natural Gas as either a supply-only gas storage water heater or a supplied and installed package in selected service areas.

This model may suit Brisbane homes replacing an older natural gas storage hot water system, especially where the existing unit is already externally installed and the property has suitable mains natural gas available.

Before installation, the site should be checked for gas type, gas meter suitability, gas pipe sizing, water pressure, valve condition, pipework, base condition, outdoor clearances, access and compliance requirements.

Vulcan 170L Natural Gas Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Vulcan 170L Natural Gas for supply only or supply and install where available.

This system may suit coastal homes, rental properties, medium to large households and natural gas-connected properties needing an outdoor gas storage hot water replacement. Final installation suitability depends on the existing natural gas setup, water pressure, access, base condition, pipework and whether any additional parts or labour are required.

Is the Vulcan 170L Natural Gas Right for Your Home?

This system may suit you if:

• You want a 170L natural gas storage hot water system

• You are replacing an existing external natural gas storage water heater

• Your property is connected to mains natural gas

• You want a 4 Star gas storage water heater

• Your household has medium to large hot water demand

• You want stored hot water with gas recovery

• You want an outdoor-only gas storage system

• You have suitable access, water pressure, natural gas supply and outdoor installation space

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

Extra work may be required if:

• The existing system is LPG, not natural gas

• The system is being moved to a new location

• Existing valves are old, missing or non-compliant

• Natural gas pipe sizing or meter suitability needs checking

• Water pressure control is required

• The existing base is damaged or unsuitable

• Pipework changes are required

• Access is restricted

• The old system needs removal or disposal

• The installation position does not meet outdoor clearance requirements

• The household may be better suited to a continuous flow or larger-capacity option

Key Features of the Vulcan 170L Natural Gas

• 170L natural gas storage hot water system

• Standard Vulcan gas storage water heater range

• Natural gas only

• Product code: 648170NG

• 170L storage capacity

• 4 Star gas energy rating

• Suitable for medium to large families

• Vulcan lists maximum 6 people based on stated usage conditions

• Outdoor installation only

• Stored hot water with gas recovery

• Vitreous enamel lined cylinder

• 7 year cylinder warranty listed by Vulcan

• Relief valve setting of 1400 kPa

• ECV setting of 1200 kPa

• Maximum supply pressure of 960 kPa with expansion control valve

• Maximum supply pressure of 1120 kPa without expansion control valve

• Natural gas hourly gas consumption of 27 MJ

• Rp 3/4 left hand water connections

• 1/2 RP gas connection

• 1868 mm high x 422 mm wide x 502 mm deep

• Trim kit FK170 listed by Vulcan

Quick Specs

Brand: Vulcan
Range: Standard Vulcan Gas Storage
Product: Vulcan 170L Natural Gas Water Heater
Product Code: 648170NG
Model Specification: 648170
System Type: Gas storage hot water
Gas Type: Natural Gas only
Storage Capacity: 170L
Recommended Household Size: Medium to large households, up to 6 people based on stated usage conditions
Installation Type: Outdoor installation only
Gas Energy Rating: 4 Star
Cylinder Type: Vitreous enamel lined cylinder
Relief Valve Setting: 1400 kPa
ECV Setting: 1200 kPa
Maximum Supply Pressure with ECV: 960 kPa
Maximum Supply Pressure without ECV: 1120 kPa
Hourly Gas Consumption: 27 MJ natural gas
Water Connections: Rp 3/4 left hand
Gas Connection: 1/2 RP
Dimensions: 1868 mm high x 422 mm wide x 502 mm deep
Trim Kit: FK170
Warranty: 7 year cylinder warranty listed by Vulcan, subject to current warranty terms

Natural Gas Storage Hot Water

The Vulcan 170L Natural Gas model is designed for homes connected to mains natural gas. It can suit properties already using natural gas for hot water, homes replacing an older gas storage system and locations where a traditional external storage unit is preferred.

Because this is the natural gas model, it must be matched to a suitable natural gas supply. Natural gas and LPG appliances are not interchangeable. The gas type should be checked before ordering and confirmed by a licensed gas fitter before installation.

170L Storage Capacity

The Vulcan 170L Natural Gas stores 170L of hot water. This gives the household a larger stored volume than the 135L model, with gas recovery to reheat the cylinder after hot water is drawn.

Vulcan lists the 170L gas storage model as suitable for medium to large families, with a maximum of 6 people based on 7 minute showers at 42°C mixed water temperature in a moderate climate, with the thermostat at maximum setting. Real suitability depends on shower duration, water temperature, climate, outlet flow rates, bath use, laundry demand and household routines.

4 Star Gas Energy Rating

The Vulcan 170L Natural Gas has a 4 Star gas energy rating.

Gas storage water heaters are commonly selected where a home already has a gas storage system installed and the customer wants a practical replacement. Running costs depend on hot water usage, natural gas pricing, thermostat settings, recovery demand, location and installation condition.

Vitreous Enamel Lined Cylinder

The Vulcan 170L Natural Gas uses a vitreous enamel lined cylinder. This lining helps protect the inside of the tank and supports long-term gas storage hot water performance when the system is installed and maintained correctly.

Water quality, pressure control, correct valve selection and compliant installation all play an important role in the service life of any storage water heater.

Outdoor Installation Only

The Vulcan 170L Natural Gas storage water heater is suitable for outdoor installation only.

It should not be installed indoors. Outdoor gas storage systems must be installed with suitable clearances, ventilation, flue terminal positioning, base support, access, water connections, gas connection and compliance requirements.

Natural Gas Supply Requirements

The Vulcan 170L Natural Gas has a listed natural gas hourly gas consumption of 27 MJ.

A licensed gas fitter should confirm gas meter suitability, gas pipe sizing, appliance location, regulator setup and compliance requirements before installation. Gas supply issues can affect performance, safety and final installation cost.

Water Pressure Requirements

The Vulcan 170L Natural Gas has a relief valve setting of 1400 kPa, ECV setting of 1200 kPa, maximum supply pressure of 960 kPa with an expansion control valve and maximum supply pressure of 1120 kPa without an expansion control valve.

If incoming water pressure is too high, pressure control may be required. Valve requirements should be checked before installation, especially when replacing older units where existing valves may be worn, missing or non-compliant.

Left Handed Water Connections

The Vulcan 170L gas storage model uses Rp 3/4 left hand water connections.

Connection position matters for replacement work because the existing pipework can affect installation time, parts required and whether pipework changes are needed. The supplied model and existing pipework should be checked before installation.

Trim Kit Option

Vulcan lists the FK170 trim kit for the 170L gas storage model.

A trim kit may be useful in some installations depending on the existing setup and finish required. Trim kits are not included unless selected separately.

Vulcan 170L Natural Gas vs Vulcan 135L Natural Gas

The Vulcan 170L Natural Gas provides more stored hot water capacity than the Vulcan 135L Natural Gas model.

The 135L model may suit smaller households or lower hot water demand, while the 170L model may be better for medium to large families, higher shower use or homes replacing an existing 170L gas storage unit. The right size depends on household usage, outlet flow rates, climate and hot water habits.

Vulcan 170L Natural Gas vs LPG Model

The current Vulcan 170L gas storage model is listed as natural gas only.

Natural gas and LPG appliances are not interchangeable. Even where older LPG variants may have existed historically, a current replacement should be checked against gas type, model plate, supplier availability and compliance requirements before ordering.

Vulcan 170L Natural Gas vs Continuous Flow Natural Gas

The Vulcan 170L Natural Gas stores hot water in a tank, while a natural gas continuous flow system heats water as it passes through the unit.

A gas storage system may suit customers replacing an existing gas storage unit and wanting a familiar storage-style setup. A continuous flow system may suit customers wanting a compact wall-mounted unit with on-demand heating, but it must be correctly sized for flow rate, fixture use and gas supply.

The best option depends on the existing system, household usage, natural gas supply, available space, hot water demand and installation requirements.

Vulcan 170L Natural Gas vs Electric Storage

A Vulcan 170L Natural Gas storage system uses natural gas for heating, while an electric storage system uses an electric element.

Natural gas storage may suit properties already connected to mains gas and replacing an existing gas storage unit. Electric storage may suit homes without gas supply or where electrical replacement is simpler. Site conditions, running costs, energy source, compliance requirements and installation costs should all be considered.

Common Uses

• Natural gas storage hot water replacement

• External gas storage water heater replacement

• Medium to large households

• Homes connected to mains natural gas

• Rental properties

• Investment properties

• Renovation projects

• Properties replacing an existing Vulcan 170L natural gas system

• Homes wanting stored hot water with gas recovery

• Outdoor installations with suitable base and clearances

• Supply-only orders where a licensed installer is already arranged

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

Suitability depends on household size, hot water usage, natural gas supply, gas pipe sizing, installation location, plumbing condition, water pressure, access, base condition and compliance requirements.

Why Order From Installed Today?

Installed Today makes it easier to order the Vulcan 170L Natural Gas as either a supply-only product or a supplied and installed package where available.

You can choose the unit only if you already have a licensed plumber and gas fitter arranged, or select an installation option in eligible Brisbane and Gold Coast service areas. Valve kits and installation add-ons can be selected online where required, helping you build a clearer product and installation pathway before checkout.

Benefits of ordering from Installed Today include:

• Supply-only or supply and install options

• Brisbane and Gold Coast service area support

• Installed-from pricing shown separately from the product price

• Compatibility checks before installation

• Product-specific information to help compare gas storage and continuous flow options

• Optional add-ons available where suitable

• Clear separation between unit price, installation and extras

• Suitable for customers with their own licensed installer

Frequently Asked Questions

Can I buy the Vulcan 170L Natural Gas supply only?

Yes. You can buy the Vulcan 170L Natural Gas as a supply-only unit if you already have a licensed plumber and gas fitter arranged.

Can I get the Vulcan 170L Natural Gas installed in Brisbane?

Yes, supply and install may be available in selected Brisbane service areas, depending on location, access, site conditions and installation availability.

Can I get the Vulcan 170L Natural Gas installed in Gold Coast?

Yes, supply and install may be available in selected Gold Coast service areas, subject to service coverage, site suitability and installation availability.

Is installation included in the product price?

No. The product price is for the unit only unless you select an installed option. Installation, valve kits, disposal, old system removal, gas fitting changes, pipework changes and other extras are not included unless selected separately.

What gas type is this model?

This page is for the natural gas version of the Vulcan 170L gas storage water heater. Vulcan currently lists this model as natural gas only.

Can the Vulcan 170L Natural Gas be used on LPG?

No. Natural gas and LPG models are not interchangeable. The correct gas type must be selected before ordering and installation.

What is the product code?

The product code is 648170NG.

What size is the Vulcan 170L Natural Gas?

The Vulcan 170L Natural Gas has 170L storage capacity.

How many people is the Vulcan 170L Natural Gas suitable for?

Vulcan lists the 170L gas storage model as suitable for up to 6 people based on stated usage conditions. Real suitability depends on shower length, climate, hot water temperature, outlet flow rates and household usage patterns.

What is the gas energy rating?

The Vulcan 170L Natural Gas has a 4 Star gas energy rating.

Can it be installed indoors?

No. The Vulcan 170L gas storage water heater is listed as suitable for outdoor installation only.

Can it be installed outdoors?

Yes. The Vulcan 170L Natural Gas is designed for outdoor installation only, subject to correct clearances, base support, access, plumbing, gas and compliance requirements.

What is the hourly natural gas consumption?

The listed natural gas hourly gas consumption is 27 MJ.

What are the water pressure settings?

The listed relief valve setting is 1400 kPa, ECV setting is 1200 kPa, maximum supply pressure with ECV is 960 kPa and maximum supply pressure without ECV is 1120 kPa.

What are the dimensions?

The listed dimensions are 1868 mm high x 422 mm wide x 502 mm deep.

What are the water connections?

The listed water connections are Rp 3/4 left hand.

What is the gas connection size?

The listed gas connection is 1/2 RP.

Is there a trim kit?

Yes. Vulcan lists the FK170 trim kit for the 170L gas storage model. Trim kits are not included unless selected separately.

Is it suitable for replacing an old natural gas storage water heater?

Yes, it may be suitable for like-for-like replacement of an older external natural gas storage water heater, provided the location, gas supply, water pressure, base, connections and compliance requirements are suitable.

What is the difference between natural gas and LPG?

Natural gas is supplied through a mains gas connection, while LPG is commonly supplied through gas bottles or LPG storage. Appliances are made for a specific gas type and must not be treated as interchangeable.

What is the warranty?

Vulcan lists a 7 year cylinder warranty, subject to current warranty terms. Warranty details should be checked before purchase because warranty terms can depend on model, installation and manufacturer conditions.

Tempering Valve and Element Information

*Element size information:
All electric hot water units are supplied as standard with a 3.6kW element unless otherwise stated on the product page, invoice, or order confirmation.

If a different element configuration is requested, such as 1.8kW or 2.4kW, the hot water unit may still arrive with the standard 3.6kW element fitted from the manufacturer. The requested 1.8kW or 2.4kW element will be supplied separately with the order for installation by a suitably licensed electrical contractor or licensed electrical licence holder.

Any element changeover, electrical connection, disconnection, wiring, testing, or modification must be carried out by a licensed electrical contractor or licensed electrical licence holder. Elements must not be changed, connected, modified, or tested by an unlicensed person.

Alternative elements supplied for non-standard configurations may be generic replacement elements and may not be the same brand as the hot water unit unless specifically stated. Generic elements are supplied to suit the requested element size and electrical configuration, but final suitability must be checked by the licensed installer before installation.

1.8kW and 2.4kW elements supplied separately with a hot water unit include a 12-month supply-only parts warranty from the date of purchase, provided the element has been correctly installed by a licensed electrical contractor or licensed electrical licence holder and used under normal operating conditions.

This element warranty covers the replacement supply of the element only. It does not include labour, call-out fees, electrical work, plumbing work, fault finding, removal, reinstallation, testing, travel, downtime, damage caused by incorrect installation, or any other associated costs. Warranty may be declined where the element has been incorrectly installed, dry-fired, modified, damaged, connected to incorrect voltage or wiring, affected by power issues, used in unsuitable water conditions, or installed by an unlicensed person.

Proof of purchase, installer details, electrical licence details, photos, and/or return of the faulty element may be required before a warranty claim is approved.

**Tempering valve information:
Where a hot water system is capable of delivering water above 50°C, a compliant tempering valve must be installed to control the temperature delivered to personal hygiene fixtures such as showers, baths, basins, and bathroom outlets. This helps reduce the risk of scalding and assists with meeting plumbing compliance requirements.

A tempering valve blends hot and cold water to deliver a safer controlled outlet temperature to required fixtures. The hot water unit itself may store water at a higher temperature, but the water delivered to personal hygiene outlets must be controlled where required by plumbing regulations.

If your property already has a suitable, compliant tempering valve installed, your licensed plumber can assess whether it is appropriate for use with the new hot water system. Existing valves may not always be suitable due to age, condition, compliance requirements, valve type, location, or system compatibility.

If a compliant tempering valve is not already installed, or if the existing valve is unsuitable, one must be supplied and installed by a licensed plumber as part of the hot water installation.

Tempering valves are not automatically included with every supply-only hot water unit unless specifically selected, listed as included, or purchased as part of a suitable valve kit. If a tempering valve is required, please purchase the appropriate valve kit with your order or arrange for your licensed installer to supply and install the correct tempering valve on site.

It is the customer’s responsibility to ensure the installation is completed by appropriately licensed trades and that all required valves, fittings, electrical work, plumbing work, and compliance requirements are allowed for as part of the installation.

Optional Installation, Organised for You

Want the product supplied and the installation organised in one simple order? On eligible products and in selected service areas, Installed Today can arrange installation through a licensed installation partner at clear, upfront install rates.

You pay Installed Today for the selected product and install package, and we pay the assigned contractor on your behalf. That means one checkout, one package summary, and a smoother process from order to installation.

Why Choose an Installed Today Install Package?

Clear upfront install pricing
Our install package builder shows the available install option and selected add-ons before checkout, so you can review the package total before placing your order.

We organise the installation
Once your order is placed, we help coordinate the installation with a licensed installation partner in your area.

No need to pay the contractor separately for the selected package
You pay Installed Today for the product and selected install package. We then pay the assigned contractor on your behalf for the included installation service.

Built for common replacement jobs
The process is designed for suitable like-for-like replacement installs where the existing setup, access and compliance requirements match the selected package.

Add-ons shown before checkout where possible
If your answers indicate that a valve kit, access add-on or other selected extra may be required, these are shown in the package before you add it to cart.

How It Works

Step 1: Choose your product
Select the hot water system you want to order, including the right size, model and kW rating where applicable.

Step 2: Build your optional install package
Answer a few quick questions about your existing system, location, access and setup.

Step 3: Review your package total
Your selected product, installation option and any selected add-ons are shown before checkout.

Step 4: Pay once through Installed Today
Complete your order online. Your payment covers the product and the selected install package shown in your cart.

Step 5: We coordinate the install
Where the job is suitable and installation is available, we assign a licensed installation partner and help organise the next steps.

Important Installation Notes

Installed Today supplies the product and helps arrange installation through licensed installation partners where available. Installation is only available on selected products and in eligible service areas.

The install package price applies to the selected installation scope shown at checkout. Final suitability still depends on site access, existing plumbing or electrical setup, valves, drainage, compliance requirements, product suitability and any extra work required.

If something outside the selected package is needed, it will be discussed before proceeding.

Supply-only orders do not include installation, old unit removal, disposal, valve kits, electrical work, plumbing alterations or compliance upgrades unless these are clearly selected or included in your order.

A Simpler Way to Buy Hot Water, Filters, Pumps and Plumbing Products

Buying a new hot water system, water filter, pump or plumbing product should be clear, simple and easy to organise.

Installed Today helps you compare products, check supply-only pricing and, where available, build an optional installation package before checkout. That means you can choose the product, review the available options and order with more confidence, without the usual back and forth just to understand the starting price.

Whether you already know exactly what you need or you are still comparing options, Installed Today gives you a clearer way to buy the right product for your home, budget and timing.

Why Customers Choose Installed Today

Supply Only or Optional Installation

Choose the product on its own, or add installation where available on selected products and in eligible service areas. This gives you the flexibility to order the way that suits you best.

Clear Pricing Before Checkout

See the product price upfront, then review available installation options and common add-ons before placing your order. You can check the package total before checkout, instead of waiting on basic pricing just to get started.

Product Details That Actually Help

Key specs, sizing details, warranty information, product features and suitability notes are shown clearly, making it easier to compare products properly before you buy.

Common Installation Add-Ons Available

Where relevant, you can add common installation extras such as valve kits, bases, access-related items, removal, electrical options or other site-specific upgrades before checkout.

Built Around Brisbane and Gold Coast Homes

Our product and installation options are selected with common Brisbane and Gold Coast homes in mind, including local water quality, access issues, plumbing layouts, replacement requirements and typical installation conditions.

One Simple Order

Add the product and selected options to cart in one order, instead of trying to organise separate suppliers, installers, parts and payments yourself.

Practical Help Before You Buy

Not sure which size, model or installation option is right? Installed Today gives you a clearer path to compare your options before you order.

Designed to Make Your Decision Easier

Installed Today is built for customers who want a faster, clearer and more convenient way to buy.

Instead of guessing what is included, waiting for basic pricing or trying to work out which extras may be needed, you can review the product, compare your options and move forward with confidence.

Choose supply only if you just need the product.

Choose an optional supplied and installed package where installation is available and you want the product and selected install options organised in one order.

Add common extras before checkout if your job needs additional parts, removal, access support or site-specific options.

It is a simpler way to organise the product, the selected extras and the parts of the job that matter most.

Important Installation Note

Installation availability, inclusions and add-ons vary by product type, service area, site access, existing services, selected options and property requirements.

Some jobs may require additional work, upgrades or checks before installation can proceed. Final suitability may need to be confirmed based on site conditions, plumbing, electrical requirements, valves, drainage, access and compliance requirements.

Supply-only orders do not include installation, old unit removal, disposal, valve kits, electrical work, plumbing alterations or compliance upgrades unless these are clearly selected or included in your order.

Fast Delivery and Install-Aligned Shipping

Installed Today makes delivery simple, whether you are ordering supply-only or choosing an optional install package.

For supply-only orders, you can select from available delivery options at checkout. For eligible orders with installation selected, shipping is included and coordinated to align with your selected installation period where possible.

Delivery Options

Same Day Delivery

Same day delivery may be available for selected hot water systems in Brisbane and Gold Coast metro areas when ordered before 8:00am.

Availability depends on stock, courier capacity, delivery location, product type and safe transport conditions.

Express Delivery

Express delivery is available on selected products and locations, with an estimated delivery timeframe of 1–4 business days.

Standard Delivery

Standard delivery is available on selected products, with an estimated delivery timeframe of 2–8 business days.

Free Shipping with Installation

When you select an eligible installation package, delivery is included as part of the supplied and installed order.

Your product delivery will be organised to align with your selected installation period where possible, helping avoid separate courier timing, storage issues or delays between delivery and installation.

Fast Metro Delivery

Most hot water orders in metro areas are delivered quickly, with many arriving within 1 business day depending on stock, location, order time and courier availability.

Weather and Transport Delays

Hot water systems are large, heavy products and cannot always be transported safely during rain or unsafe handling conditions.

Delivery timeframes may be affected if wet weather impacts loading, unloading, transport access or safe delivery conditions.

Express Delivery Refund

If your express delivery order takes longer than the estimated 1–4 business day express timeframe, your order will move to the standard 2–8 business day delivery timeframe and your express shipping charge will be refunded automatically.

Order Tracking

We will send your delivery details once your order has been dispatched or scheduled.

For supplied and installed orders, delivery timing may be coordinated around your selected installation period rather than sent as a separate courier-only delivery.

Need Help with Delivery?

Not sure whether to choose supply-only delivery or an optional install package? Contact our team before ordering and we can help you understand the best option for your product, location and timing.