Whale Expanse Underfloor Gas & Electric Water Heater SETWL8212A


In stock


Please allow 3 – 5 Working Days for Delivery


Comes with new part number SETWL8212A

Whale work in partnership with caravan and motorhome manufacturers to provide end-users with innovative products and professional support services. For Whale’s heating system range, weight and space saving, practicality and of use and ease of installation are central considerations in this process.

The unique design has an 8 litre capacity hot water tank which incorporates versatile controls to deliver low current draw or fast heat up settings. With robust insulation and no removable flue cover, the Whale® Expanse™ Water Heater only requires minimal maintenance.

The Whale® Expanse™ Water Heater has been designed for caravan, motorhome and mobile applications, and is suitable for small and medium sized recreational vehicles only.

  • Easy to access
  • Winter protection
  • External gas connections
  • Underside flue connector
  • 8 litre capacity water tank
  • Easy mounting option
  • More internal living space
  • Robust design
  • Superior insulation

*NOTE: All Whale water heaters must be installed and serviced by a fully qualified gas engineer in accordance with the appropriate installation instructions

Click here for Whale approved service engineers


In stock

Additional Information

Whale Expanse underfloor water heater.

This has the new part number of SETWL8212A

MORE SPACE AND LESS WEIGHT. Valuable living and storage space is extended due to the underfloor location of the Expanse.

FAST HEAT UP, REHEAT AND RETENTION. Expanse features a high efficiency pre-mixed burner and direct heat exchanger located inside the water tank which is designed to maximise heat transfer to heat water faster than any other Whale model.

MORE CONTROL – NO COMPROMISE HEATING. You can run the Expanse underfloor water heater on electric only, gas only or using both combined. When installed with Whale’s iVan® Wireless Touch Screen Control Panel, users can run the water heater and space heater independently or together as required. Can also programme up to 3 timers so that hot water is available any time day or night.

Kit contains: water heater, control panel, braided hose, instruction manual including installation templates and warranty registration card

Whale Expanse installation instructions

Whale’s information for van conversions

Technical Specification

Additional information

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