Rheem 315L Electric Hot Water System

The Rheem 315L Electric Hot Water System is available online from Hot Water Outlet as a supply-only electric storage water heater with metro delivery available in selected areas Australia wide.

Customers can purchase the Rheem 315L as a supply-only hot water system and request assistance arranging installation quotes after purchase through licensed local installers in selected metro regions.

The Rheem 315L electric water heater is a large-capacity Australian-made electric storage hot water system designed for family homes, rentals and higher-use households where dependable stored hot water is needed. With 315L hot water delivery, durable Rheem Ultranamel® cylinder coating, a thicker sacrificial anode, dual handed water connections and single or twin element model options, it is a strong choice for replacing an older electric hot water system.

About the Rheem 315L Electric Water Heater

The Rheem 315L Electric Water Heater is part of Rheem’s 491 / 492 Series electric storage range. It is designed and manufactured in Australia and is commonly used as a like-for-like replacement for older electric storage hot water systems.

Rheem lists the 315L model as suitable for up to 9 people based on 7-minute showers at 42°C mixed water temperature in a moderate climate on a time-of-use tariff. Real-world suitability can vary depending on shower length, hot water usage, tariff setup, climate and household habits.

The 315L range is available in single element and twin element models. The single element model is commonly used for standard electric storage replacement, while the twin element model can suit homes needing faster recovery or extra daytime hot water support where the electrical setup allows.

Buy Rheem 315L Supply Only

Order the Rheem 315L Electric Hot Water System online from Hot Water Outlet with metro delivery available in selected areas across Australia.

This option is ideal for customers who already have a licensed plumber or electrician arranged and only need the unit supplied.

The supply-only product price includes the hot water system itself.

Installation, old system removal, disposal, valve kits, electrical work, plumbing alterations, drainage changes, compliance upgrades and additional site requirements are not included unless separately quoted.

Supply-only is ideal for customers searching for:

• Rheem 315L price

• Rheem 315L electric hot water system for sale

• Rheem 491315 electric water heater

• Rheem 492315 twin element electric water heater

• Rheem 315L supply only

• 315L electric hot water system supply only

• Rheem electric water heater 315L

• Australian made electric hot water system

Installation Quotes Available After Purchase

Hot Water Outlet does not directly provide installation services.

After purchasing the Rheem 315L Electric Hot Water System, customers in selected metro areas may request assistance arranging installation quotes through licensed local plumbers and electricians.

Installation quote availability depends on:

• service location

• installer availability

• existing system type

• property access

• plumbing suitability

• electrical requirements

• drainage requirements

• compliance requirements

Additional installation costs may apply for:

• valve upgrades

• electrical upgrades

• drainage changes

• pipework changes

• difficult access

• concrete bases

• old system removal

• disposal

• compliance upgrades

Rheem 315L Delivery Brisbane

Hot Water Outlet offers metro delivery for the Rheem 315L Electric Hot Water System in selected Brisbane areas.

Customers can order online and request assistance arranging installation quotes after purchase where available.

Rheem 315L Delivery Gold Coast

Hot Water Outlet offers metro delivery for the Rheem 315L Electric Hot Water System in selected Gold Coast service areas.

Customers can purchase online and organise installation separately or request help arranging installation quotes after purchase.

Rheem 315L Delivery Sydney

Hot Water Outlet offers metro delivery for the Rheem 315L Electric Hot Water System in selected Sydney metro areas.

Customers can order online with installation quote assistance available after purchase in selected locations.

Rheem 315L Delivery Melbourne

Hot Water Outlet offers metro delivery for the Rheem 315L Electric Hot Water System in selected Melbourne metro areas.

Customers can purchase the system online and request help arranging installation quotes after delivery.

Is the Rheem 315L Right for Your Home?

The Rheem 315L Electric Hot Water System may be suitable if you are replacing a larger electric storage hot water system and want a reliable Australian-made unit from one of Australia’s most recognised hot water brands.

It is commonly suited to:

• larger family homes

• rental properties

• investment homes

• households with higher daily hot water demand

• homes needing more capacity than a 250L system

• homes where a 400L unit may not be required

This system may suit you if:

• you are replacing an existing electric storage hot water system

• you want a 315L electric hot water unit

• your household has higher daily hot water demand

• your household has up to 9 people under Rheem’s stated usage assumptions

• you want single element or twin element model options

• your property has suitable access and installation space

• your plumbing and electrical setup are suitable for the selected installation option

• you prefer supply-only purchase flexibility

Additional installation work may be required depending on:

• existing plumbing condition

• electrical requirements

• drainage requirements

• access limitations

• compliance upgrades

• valve condition

• installation location requirements

Key Features of the Rheem 315L

• 315L electric storage hot water system

• Model 491315 with 492315 twin element model available

• Suitable for up to 9 people under Rheem’s stated usage assumptions

• 315L hot water delivery

• Australian made

• Easy like-for-like replacement design

• Common footprint and fitting locations for easier changeover

• Durable Rheem Ultranamel® cylinder coating

• Thicker sacrificial anode for additional cylinder protection

• Dual handed inlet and outlet fittings

• Suitable for connection to lower-cost tariffs where available

• Single element model available

• Twin element model available for faster heating and extra hot water support

• Indoor or outdoor installation suitability

• Rp 3/4 water connections

• 12-year cylinder warranty under Rheem warranty terms

• 1-year labour warranty on the cylinder under Rheem warranty terms

• 1-year parts and labour warranty on all other domestic components under Rheem warranty terms

Quick Specs

Brand: Rheem
Range: Rheem 491 / 492 Series Electric
Product: Rheem 315L Electric Water Heater
Model: 491315
Twin Element Model: 492315
System Type: Electric Storage Hot Water System
Hot Water Delivery: 315L
Recommended Household Size: Up to 9 people under Rheem’s stated usage assumptions
Element Rating: 3.6kW and 4.8kW options
Twin Element Option: Available
Installation Type: Indoor or outdoor installation
Water Connections: Rp 3/4
Relief Valve Pressure: 1000 kPa
Expansion Control Valve Setting: 850 kPa
Max Water Supply Pressure With ECV: 680 kPa
Max Water Supply Pressure Without ECV: 800 kPa
Approximate Diameter: 640mm
Approximate Height: 1640mm
Approximate Packaged Weight: 97kg
Cylinder Warranty: 12 years subject to Rheem warranty terms
Cylinder Labour Warranty: 1 year subject to Rheem warranty terms
Other Domestic Parts and Labour Warranty: 1 year subject to Rheem warranty terms

Twin Element Option Available

The Rheem 315L Electric Water Heater is available with a twin element model for homes that need faster heating or additional daytime hot water support.

A twin element model can be useful where household hot water use is heavier at certain times of day, such as when multiple showers, laundry and general hot water demand happen close together. The correct model depends on the home’s electrical setup, tariff arrangement and installation requirements.

Rheem Ultranamel® Cylinder Protection

The Rheem 315L uses Rheem Ultranamel® cylinder coating. This tough internal coating is designed to help protect the cylinder and support long-term performance when the unit is correctly installed, selected and maintained.

The thicker sacrificial anode provides additional cylinder protection against water-borne contaminants. Water quality, installation compliance, valve setup and servicing conditions can all affect hot water system lifespan and warranty outcomes.

Dual Handed Connections

The Rheem 315L Electric Water Heater includes dual handed inlet and outlet fittings. This can make replacement installation easier because the water connections can better suit different existing plumbing layouts.

Dual handed connections can be especially helpful in like-for-like replacement jobs where matching existing pipework may reduce the need for extra plumbing changes.

Designed for Lower-Cost Tariffs

The Rheem 315L electric storage range is suitable for connection to lower-cost tariffs where available and appropriate.

This can help reduce running costs compared with heating water on a standard continuous electricity tariff. The best tariff option depends on the selected model, household hot water demand, location, electricity provider and installation setup.

Common Uses

The Rheem 315L Electric Hot Water System can be suitable for:

• larger family homes

• busy households

• larger townhouses

• rental properties

• investment properties

• electric storage hot water replacement

• homes needing more capacity than a 250L system

• homes with up to 9 people under Rheem’s stated usage assumptions

• indoor or outdoor electric hot water installations

Frequently Asked Questions

Can I buy the Rheem 315L supply only?

Yes. The Rheem 315L can be purchased online as a supply-only product with metro delivery available in selected areas.

Does Hot Water Outlet install electric hot water systems?

No. Hot Water Outlet does not directly provide installation services. Customers may request assistance arranging installation quotes after purchase in selected metro areas.

Can I get an installation quote after purchasing?

Yes. Customers in selected metro areas may request help arranging installation quotes through licensed local installers after purchasing the system.

Is delivery available Australia wide?

Metro delivery is available in selected service areas across Australia. Delivery availability may vary depending on location and product type.

How many people is the Rheem 315L suitable for?

Rheem lists the 315L electric water heater as suitable for up to 9 people based on 7-minute showers at 42°C mixed water temperature in a moderate climate on a time-of-use tariff. Actual suitability can vary depending on shower length, hot water usage, tariff setup, climate and household habits.

Can the Rheem 315L be installed outside?

Yes. The Rheem 315L electric water heater is listed for indoor or outdoor installation provided the installation location is compliant and suitable.

What is the warranty on the Rheem 315L?

Rheem lists the 315L electric water heater with a 12-year cylinder warranty, 1-year labour warranty on the cylinder and 1-year parts and labour warranty on all other domestic components subject to Rheem warranty terms.

What element size does the Rheem 315L use?

The Rheem 315L range is listed with 3.6kW and 4.8kW element rating options. The correct option depends on the selected variant, electrical setup and site requirements.

Is there a twin element Rheem 315L model?

Yes. Rheem lists a twin element 315L model, 492315. The twin element option can provide faster heating and extra hot water support where the electrical setup and tariff arrangement are suitable.

Is the Rheem 315L good for replacing an old electric hot water system?

Yes. The Rheem 315L is designed for easy like-for-like replacement with common footprint and fitting locations to older model electric water heaters. Suitability still depends on the existing location, plumbing, electrical supply and household hot water demand.

Is the Rheem 315L suitable for lower-cost tariffs?

Yes. Rheem lists the 315L model as suitable for connection to lower-cost tariffs where available. The best setup depends on the selected model, electricity plan, household demand and installation conditions.

What is the relief valve pressure?

The Rheem 315L is listed with a 1000 kPa relief valve pressure.

What is the expansion control valve setting?

The Rheem 315L is listed with an 850 kPa expansion control valve setting.

What is the difference between Rheem 491315 and 492315?

The Rheem 491315 is the single element 315L model. The Rheem 492315 is the twin element 315L model. The twin element option can provide faster heating and additional hot water support where the electrical setup and tariff arrangement are suitable.

* Requested element size may come delivered separately to system for electric systems - All units supplied with factory with 3.6kW

**Where a unit supplied is capable of supplying more than 50°C, a tempering valve must be installed on the property or purchased as part of a valve kit with your order.

Buying a new hot water system or hot water part should be simple. Hot Water Outlet helps you compare hot water systems, valves, thermostats, elements, pipework and fittings in one place, so you can choose the products that suit your home, budget and hot water needs without the back and forth.

Whether you already know exactly what you need or you are still comparing electric, gas, instant gas, gas storage or heat pump hot water options, Hot Water Outlet makes it easier to order with confidence.

Why Customers Choose Hot Water Outlet

Hot Water Systems and Parts in One Place

Shop hot water systems, valves, thermostats, elements, pipework and fittings online from one focused hot water store. Choose the system first, then add the parts and accessories needed for your setup.

Clear Product Pricing Before Checkout

See your hot water system price upfront, then add common valves, fittings or accessories before placing your order. This makes it easier to plan your purchase and compare options before checkout.

Product Details That Actually Help

Key specs, sizing details, tank capacity, flow rate, gas type, energy source, dimensions, warranty information, product features and suitability notes are shown clearly, so you can compare hot water systems properly before you buy.

Valves and Accessories Available

Where relevant, you can add common hot water parts such as tempering valves, pressure relief valves, duo valves, non-return valves, thermostats, elements, pipework and fittings to help complete your order.

Built for Australian Hot Water Buyers

Hot Water Outlet is focused on hot water systems and accessories for Australian homes, rentals, renovations and replacement projects. Browse trusted brands and compare practical options for common household hot water needs.

One Simple Online Order

Add your hot water unit and selected parts to cart in one order, instead of searching across multiple suppliers for systems, valves, fittings and accessories.

Practical Help Before You Buy

Not sure which hot water system, size, energy type or accessory is right? Hot Water Outlet gives you a clearer way to compare electric hot water systems, heat pump hot water systems, gas storage hot water systems and instant gas hot water units before you order.

Designed To Make Your Decision Easier

Hot Water Outlet is built for customers who want a faster, clearer and more convenient way to buy hot water systems and hot water parts online.

Instead of guessing which product suits your home, searching multiple suppliers, or trying to match accessories separately, you can review the system, compare the specifications and add common hot water parts before checkout.

Choose your hot water system.

Add the valves and accessories you need.

Compare product details before checkout.

Order online with confidence.

It is a simpler way to buy the hot water products and parts that matter most.

Important Note

Product suitability can vary by property, existing services, energy source, gas type, available space, connection points, pressure requirements and local compliance requirements. Always check product specifications carefully and confirm the selected hot water system, valves, fittings and accessories are suitable for your property before ordering.

Standard Delivery: 2–8 business days

Express Delivery: 1–4 business days

90% of products are delivered the next business day where stock, postcode eligibility and freight availability allow.

Delivery timeframes are estimates and may vary by product, stock location, delivery postcode, carrier availability and order timing. Wet weather, storms, flooding or unsafe site access may delay delivery and are additional to any advertised or guaranteed freight timeframes.