RV Hot Water Systems Buying Guide

Finding the right hot water system (HWS) for your RV can be a challenge. The industry has multiple options, and it is hard to know which one will work best for you. If you are looking to purchase a new hot water system, this buying guide will help you make an informed decision on the type of RV hot water system that is right for you!

Determine priority water usage

The first tip is experienced Australian caravaners adjust their normal level of water consumption while on the road, often implementing strategies to save water. Necessities for water usage include personal hygiene, showering, cleaning dirty cutlery and crockery and washing clothes. Since water holding tanks have a limited capacity, consider what water usage is a priority.

Do not neglect using hot water altogether, because while having hot water to wash yourself and household items are a luxury, a combination of hot water and disinfecting detergent is needed to effectively remove potential hosts for bacteria.

One way of getting hot water on demand is putting a pot of water on the stove and bringing it to the boil to wash the dishes in the sink, assuming you have a built-in kitchen sink. But at the end of the day this method can be tiresome if you are on an extended trip away.

Built in hot water system 

Having a built-in hot water system in your van is a very practical solution to having hot water on the go. Thankfully, there are numerous hot water systems available for the caravan and RV industry.

Instant hot water system

To reduce the amount of water wasted while waiting for the hot water to run through the pipes, install an instant hot water system. Instant hot water systems, means that the water heats up as it passes through the taps. There are multiple power sources that can heat the water including gas, diesel, and or electricity. These systems are very water and energy efficient, as the water is only heated when needed. The perfect solution when water is a limited resource on board your trailer.

Small and compact

Further, contemporary instant hot water systems are designed to be small and compact ensuring that they are space saving, light weight components. The caravan RV instant hot water systems can fit under a seat or in the back of one of the internal van cupboards.

Here are a few hot water systems, both tank and instant, that are available for installation by a Licensed Technician.

Suburban SW6DRA Gas Only Hot Water System

Suburban SW6DRA Gas Only Hot Water System

The Suburban SW6DRA Gas Only water heater and has been WaterMark certified for the Australian market. 

Manufactured in the USA featuring a steel tank with porcelain lining for an extended life and copolymer insulation jacket for superior heat retention.

These hot water systems fit under a seat or in the back of a cupboard, with a door and access from the outside of the RV.

Suburban Nautilus on Demand Water Heater

The Suburban Nautilus on Demand Water Heater is an on-demand hot water unit for caravans and RVs. Providing endless hot water on demand.

The Suburban Nautilus is energy-efficient. It only operates when the need for hot water arises. With an endless supply of hot water, the on-demand water heater allows you to run showers and taps at the same time. The water heater requires no storage tank to heat the water. Which reduces weight in your caravan and RV.

The Suburban Nautilus on Demand Water Heater uses an exclusive 60,000 BTU 2-Stage Modulating Combustion System (MCS). This instantly adjusts the LP gas input, to provide constant and endless comfort regardless of your hot water needs.

nautilus-white Buying Guide
Suburban HWS SW6DERA

Suburban HWS SW6DERA

The Suburban SW6DERA offers a near-perfect solution for a 24-hour hot water supply in your RV, caravan, or camper.

Running on both LPG gas, 12V and a 240-volt electrical connection, the system’s inbuilt water storage tank has a large capacity of 20.3 litres. The build quality consists of a pressure tested high tensile steel body, and durability-enhancing porcelain lining. This HWS has a replaceable anode rod for protection against corrosion.

The anode rod serves the additional function of a drain plug. Which is accessed via a service door that houses other components such as the heating filament and the limiter switch.

The Suburban SW6DERA is a reliable hot water solution while you are on the road. Its 1440W element and heavy-duty insulation ensures both high-speed water heating, and an efficient recovery rate of 40 litres per hour.

Truma Ultra Rapid Gas/Electric HWS

Showering, dishwashing, washing your hands, the Truma UltraRapid Hot Water System HWS will provide a reliable supply of hot water in leisure vehicles. Truma has now taken the development of the well-tried boiler further and adapted it to the continuously increasing demands of the standards.

The new Truma UltraRapid HWS impresses with increased heating power, compact dimensions, and new black design.

Available with either black or cream cowl.

Available gas only.

Truma Ultra Rapid Gas/Electric HWS with Black Cowl
Truma AquaGo Instant HWS

Truma AquaGo Instant HWS

Truma AquaGo is the only instant water heater that utilises hybrid technology with a patent pending temperature stabiliser. Users can adjust temperatures like at home. When showering, a constant hot water temperature is maintained even after the water is turned off, then back on again. No more scalding.

Thanks to microprocessor-controlled stepless burner management, Truma AquaGo water heater always delivers a constant water temperature. Even at high and low flow rates and varying inlet water temperatures. The integrated water diverter eliminates water strains on the vehicle exterior. A reusable filter cartridge reduces scale particulates.

DISCLAIMER* Please ensure that this product is installed by a Licensed Technician and compliant with Australian Standards, as improper installation can lead to severe injury or death.

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