Rheem 315L Electric Water Heater
SunCity Hot Water supplies, installs and services the Rheem 315L Electric Water Heater across the Sunshine Coast, Brisbane, Bribie Island and Gympie — backed by our quality workmanship guarantee. Call 1300 728 122.
Upgrade to the Rheem 315L Electric Water Heater today for a continuous supply of reliable hot water tailored to your needs. Contact SunCity Hot Water to secure yours now.

Key Features
Installation Flexibility with Dual Handed Fittings
The Rheem 315L Electric Water Heater includes dual handed fittings, offering outstanding installation flexibility. Whether it’s a new build or a system replacement, this design adapts easily to various plumbing configurations, ensuring a seamless fit regardless of your home’s layout.
Tough and Durable Rheem Ultranamel® Coating
Protected with Rheem’s exclusive Ultranamel® coating, the cylinder is engineered to resist corrosion and wear. This advanced coating strengthens durability, extending the lifespan of the unit and maintaining reliable performance over time.
Enhanced Protection with a Thicker Sacrificial Anode
A thicker sacrificial anode provides additional internal protection against corrosion. By defending the cylinder from waterborne contaminants, it helps maintain water quality and prolong the operational life of the system.

Hassle-Free Replacement
The Rheem 315L is designed for straightforward like-for-like replacement. With matching footprints and fitting locations to older electric systems, it allows a smooth upgrade without the need for major changes.

Versatile Installation Options
Dual handed fittings deliver exceptional adaptability, allowing the heater to fit both standard and unique plumbing setups while ensuring optimal positioning in your home.

Cost-Effective Operation
Compatible with off-peak electricity tariffs, the Rheem 315L supports more economical operation, helping reduce running costs while maintaining reliable hot water.
Installation, Maintenance & Warranty
Installation

The Rheem 315L Electric Water Heater supports easy installation thanks to its standard footprint and fitting positions that align with many older electric models. Dual handed fittings provide added flexibility, allowing the system to adapt to a wide range of plumbing layouts. We ensures professional, efficient installation tailored to your home’s needs.
Maintenance

Routine maintenance includes checking the sacrificial anode and inspecting the Ultranamel®-coated cylinder. Regular servicing helps prevent internal corrosion, ensuring long-term performance and extending the lifespan of the unit.
Warranty
The Rheem 315L Electric Water Heater offers a generous warranty package, including a 12-year cylinder warranty, 1-year labour coverage on the cylinder, and 1-year parts and labour on all other components for domestic installations. Warranty terms and conditions apply, and We are available to assist with all warranty queries and claims to ensure your system remains protected.
Frequently Asked Questions
What is the hot water delivery capacity of the Rheem 315L?
The Rheem 315L delivers 315 litres of hot water, making it ideal for average-sized households.
What is the relief valve pressure for this model?
The relief valve pressure is 1000 kPa, providing effective safety and pressure management.
What is the expansion control valve pressure?
The expansion control valve operates at 850 kPa, helping manage thermal expansion within the system.
How long does an electric hot water system last?
Electric storage hot water systems typically last around 8–10 years, and longer with regular servicing and anode replacement.
How do electric hot water systems work?
An electric hot water system heats water using an electric element inside an insulated storage tank, keeping hot water ready for use — a simple, reliable and affordable option.
Is gas or electric hot water cheaper?
Standard electric is usually the most expensive to run, and gas is often cheaper. A heat pump is the most efficient electric option, using up to 70% less power than a standard electric system.
How much does a new hot water system cost?
The cost of a new hot water system depends on the type and size. Electric storage systems are the most affordable upfront, while heat pump and solar systems cost more but save on running costs and may qualify for rebates. Call SunCity Hot Water on 1300 728 122 for an all-inclusive supplied-and-installed quote on the Rheem 315L Electric Water Heater.
What size hot water system do I need?
As a guide, 1–2 people suit 125–160L, 3–4 people (a family of four) suit 250–315L, and larger households suit 400L. Continuous-flow gas units are sized by hot water flow rate instead. SunCity will help size the right system for your household.
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