Water Heater Element for 12V 24V Boiler – 300W / 600W Electric Heater for Off-Grid Solar Systems

Overview

This electric heating element for off-grid photovoltaic systems is the perfect solution to efficiently use surplus solar energy. Made from SUS304 stainless steel, it is corrosion-resistant and features a standard 1-inch BSP flange for easy installation.

Technical Specifications

• Material: SUS304 stainless steel – durable, corrosion-resistant
• Total Power: 600W (2 rods x 300W)
• Dimensions: Length 220 mm, rod diameter 8 mm
• Thread: 1 inch BSP – compatible with most water tanks

Available Operating Voltages

• 12V – Standard Configuration: rods connected in parallel, current draw approximately 50A
• 24V – Optional Configuration: rods connected in series, current draw approximately 25A

Instructions for Reconfiguring to 24V

1. Disconnect the link between the two rods of the heating element.
2. Connect the terminals of each rod to the 24V power source in series.
3. Each rod will receive 12V, ensuring safe and efficient operation.

Recommended Applications

• Water heaters and hot water tanks – for direct solar energy heating
• Electric radiators – for using surplus energy
• Backup energy systems – automatic management of surplus consumption
• Off-grid installations – ideal for self-sufficient homes

Important Usage Recommendations

• Use only with the correct rated voltage (12V or 24V)
• Ensure the heating element is fully submerged in liquid during operation
• Install a power controller or relay to automatically manage surplus energy