Where does it go?



The Whale Space Heater Mk2 Gas & Electric (SH2202) is installed inside a caravan, motorhome or campervan, usually out of sight under a seat, bed, or cupboard.
It provides space heating and blown warm air to the living area via ducting outlets.
The heater connects to:
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LPG (gas) supply
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230 V electric (for electric heating mode)
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12 V power (for controls and fan)
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Warm air ducting to vents around the vehicle
It is a fixed appliance and forms part of the vehicle’s permanent heating system.
Typical installation locations:
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Under a bench seat
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Under a bed base
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In a low-level cupboard or service locker
Installed in vehicles using **Whale heating systems.
How is it fitted
Important safety notice:
Installation involves gas, 12 V and 230 V electrical connections and must be carried out by a qualified/competent installer in accordance with local regulations.
Before you start
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Isolate LPG supply, 12 V battery, and 230 V mains.
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Confirm there is adequate ventilation and clearance around the heater.
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Ensure the mounting surface is flat, rigid and level.
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Tools typically required: drill, screwdriver, spanners, hole saw (for ducting), gas-rated fittings.
Step-by-step fitting
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Position the heater
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Place the heater in the chosen location with the air outlet ports facing the ducting routes.
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Ensure required clearances are met around the casing.
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Secure the heater
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Fix the heater base to the floor or mounting panel using the manufacturer’s fixing points.
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Ensure the unit is stable and does not move during travel.
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Connect warm air ducting
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Attach Whale warm air ducts to the heater outlets.
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Route ducting to interior vents, keeping runs as short and straight as possible.
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Secure ducts with clips and avoid crushing or tight bends.
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Connect gas supply
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Connect the heater to the LPG supply line using approved gas fittings.
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All gas work must be pressure tested after installation.
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Connect electrical supplies
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12 V DC: supplies the fan and controls.
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230 V AC: powers the electric heating element.
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Follow the Whale wiring diagram precisely and secure cables away from heat sources.
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Install the control panel
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Fit the Whale control panel to an interior wall and connect it to the heater using the control loom.
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This allows mode selection (gas/electric) and temperature control.
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Final checks & commissioning
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Restore gas and electrical supplies.
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Test operation on:
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Gas mode
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Electric mode
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Fan and thermostat control
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Check airflow at all vents and confirm safe operation.
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Quick fit notes
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Product type: Gas & electric blown-air space heater
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Model: Whale Space Heater Mk2 (SH2202)
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Installation location: Under-seat / under-bed / cupboard
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Connections required: LPG, 12 V DC, 230 V AC
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Air distribution: Warm air ducting to interior vents
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Control: Remote Whale wall-mounted control panel
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Installation: Professional / competent installer required
Pro tip
For best heating performance, keep duct runs short and evenly balanced, and position vents to promote good airflow throughout the vehicle.












