Whale Expanse Onboard Gas & Electric Water Heater with Flue Kit

Enjoy a reliable supply of hot water in your campervan, motorhome or van conversion with the Whale Expanse 8L Onboard Gas & Electric Water Heater.

Designed to save space while delivering fast water heating, the Expanse can operate on gas, 230V electric, or gas and electric together. Its onboard design means the unit is installed inside the vehicle, making it suitable for a wide range of campervan and panel van conversions. 

The heater comes with a Whale control panel, flue components and installation hardware, providing the key components required for fitting the system.

Fits

• Volkswagen Transporter
• Ford Transit Custom
• Fiat Ducato
• Peugeot Boxer
• Citroën Relay
• Mercedes-Benz Sprinter
• Volkswagen Crafter
• Ford Transit

This is not a vehicle-specific bolt-on component. Suitability depends on the individual conversion layout, available installation space, flue position and gas, water and electrical systems. 

Key Features

• 8-litre water capacity: Compact hot-water storage for campervan and motorhome use.
• Gas and electric operation: Can run on gas, 230V mains electricity or both together.
• Fast heat-up: Designed with efficient heat transfer for quicker water heating.
• Onboard installation: Fits inside the vehicle rather than beneath the floor.
• Space-saving design: Well suited to campervan and motorhome conversions where installation space is limited.
• Temperature control: Supplied with a dedicated Whale control panel.
• Frost protection: User-activated frost protection mode helps protect the heater in colder conditions.
• Good heat retention: Insulated tank helps keep the stored water hotter for longer.
• Quiet operation: Designed for comfortable use in leisure vehicles.
• Lightweight construction: Heater weighs approximately 5.4 kg. 

Specifications

• Water capacity: 8 litres
• Electric settings: 750W Eco / 1500W High
• Electrical supply: 12V DC and 230V AC, 50Hz
• Gas: Butane / propane at 30mbar
• Gas connection: 8mm compression fitting
• Pressure relief valve: 3.0 bar
• Maximum water inlet pressure: 1.9 bar
• Maximum 230V current consumption: 6.5A
• 12V consumption: 0.48A, approximately 0.03A on standby
• Dimensions: 522mm long × 262mm wide × 229mm high
• Weight: Approximately 5.4 kg 

What's Included?

• 8-litre Whale Expanse onboard gas and electric water heater with fixing feet
• Whale water heater control panel
• 3.5m communications cable
• 1.25m flue
• 3 × flue brackets
• 1 × end flue bracket
• Fixing hardware/components supplied as part of the kit

Why Should I Buy This Water Heater?

The Whale Expanse is a practical option for campervan conversions where you want hot water without giving up excessive interior space.

Being able to use gas or mains electricity gives you flexibility when travelling. Use the electric element when connected to a suitable campsite hook-up, gas when you're away from mains power, or combine the available energy sources when appropriate.

The compact 8-litre tank, lightweight construction and included control panel make it particularly well suited to small and medium-sized leisure vehicles. 

Fitting

This is an onboard heater, so a suitable internal mounting position with the required clearances, water connections, gas supply, electrical supplies and flue routing must be provided.

Installation must follow Whale's instructions, including the requirements for the gas connection, flue, water system and 12V/230V electrical supplies.

Whale specifies that its water heaters must be installed and serviced by a fully qualified gas engineer in accordance with the appropriate installation instructions.