14-inch immersion heater with integral thermostat, engineered for unvented hot water systems. Incoloy sheath provides superior corrosion resistance in hard water conditions, extending element lifespan and maintaining consistent heat output. The built-in stat delivers precise temperature control, reducing energy waste and ensuring reliable performance in domestic and light commercial applications. Direct replacement for standard immersion heaters; compatible with most unvented cylinder installations. Durable construction backed by comprehensive warranty coverage.
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