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Electric Immersion Heater Onnline W-032 1/2" 300W with Thermostat (GRBT)
Onnline W-032 electric immersion heater is a compact 300 W screw-in heating element designed to heat liquids in small tanks, boilers and containers. The device features a 1/2" threaded connection and an integrated thermostat (GRBT) that enables controlled temperature maintenance for domestic and light industrial applications where a compact, reliable heater is required.
The heater combines a low-power 300 W element with an integrated thermostat, offering precise temperature control and reduced energy consumption for small-volume heating tasks. Its 1/2" threaded design ensures a secure and straightforward installation into compatible tanks and vessels. The compact form factor and durable construction support continuous use in applications that require stable liquid temperatures without large or complex equipment.
Install the immersion heater by screwing it into a compatible 1/2" threaded port on the tank or container. Ensure the heater is fully submerged in liquid before applying power to avoid dry heating. Connect the electrical supply following local wiring standards and the product's safety instructions, and set the built-in thermostat to the required temperature. Monitor the first heating cycle to confirm correct thermostat operation and secure mounting.
Use the heater only in liquids for which the element is rated, avoid operation in corrosive or highly viscous fluids, and ensure continuous liquid coverage of the heating element. Regularly inspect the connection seal and electrical wiring, and follow local electrical safety regulations during installation and maintenance.
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