Tesla ‘Willis Jacket’ External Immersion Heater – Complete, Pre-wired And Fully Assembled

3Kw ‘Willis Jacket’ external immersion heater.

• Fully assembled.
• Connection size: 15mm
• 3Kw immersion heater
• Thermostat with safety cut fitted
• Assembled in a copper ‘Willis Jacket’
• Pre-wired with heat resistance cable
• Heat resistant polymer formed terminal cover
• Fully insulated.
• Modern replacement for the Willis Jacket.
• Efficient immersion heater system, fitted externally to hot water cylinder.
• Provides small quantities of hot water fast,
• Can work on Economy 7 to heat a full cylinder overnight.
• Easy to fit and replace.
• Can be used as a stand-alone heating system for certain applications.

Product to EN 60335 standard

Please note: If being used to replace existing Willis Jacket, some adjustment maybe required to the pipework.

Fitting instructions provided.