500W Mini Water Heating Boiler Module 12-25V | NTC Probe

500W Mini Water Heating Boiler Module – 12–25V DC with 185°C Thermostat & 85K NTC Probe

This compact yet powerful mini water heating boiler module is engineered for reliable hot water generation in floor scrubbers, DIY water heating systems, and custom liquid heating applications. With a wide voltage range of 12V–25V DC and a rated output of 500W at 25V, this versatile heating component delivers over 50°C outlet water temperature under full power — making it ideal for builders, tinkerers, and equipment technicians alike.

Made in Mainland China.

Key Specifications

• Rated Voltage: DC 25V | Wide Voltage Range: 12V–25V
• Rated Power: 500W at 25V; ~105W at 12V
• Max Outlet Water Temperature: Over 50°C under full power
• Pump Compatibility: 12V peristaltic pump, flow rate ~280 mL/min
• Power Connector: 3.5mm gold-plated socket
• Net Weight: Approx. 200g (with plastic casing)

Construction & Thermal Components

• Heating Cavity: Full aluminum alloy inner chamber for efficient heat transfer
• Insulation: Heat insulation cotton wrapped around the heating core
• Thermal Protection: 185°C temperature control safety switch
• Temperature Detection: 85K NTC thermistor probe for accurate monitoring
• Outer Shell: Durable plastic snap-on housing

Why Choose This Heating Module?

• ✅ Wide voltage input (12V–25V) for flexible integration into various systems
• ✅ Aluminum alloy heating chamber ensures fast, even heat distribution
• ✅ Built-in 185°C thermal cutoff switch for safe, worry-free operation
• ✅ 85K NTC probe delivers precise real-time temperature feedback
• ✅ Compact and lightweight — easy to integrate into custom builds
• ✅ Gold-plated power connector for stable, low-resistance electrical contact

Safety Notice

⚠️ Important: Do NOT direct the inlet or outlet toward people or objects. If the unit has been run dry and water flow is then introduced, the residual heat can instantly vaporize water into high-temperature steam. Always ensure water flow is established before powering the unit.

Package Contents

• 1× Water Heating Boiler Module

Additional Notes

• Due to lighting and display differences, product color may vary slightly from images.
• Please allow a tolerance of 1mm–1cm due to manual measurement.

For further guidance on electrical safety standards when working with heating elements and DIY electrical components, refer to the U.S. Consumer Product Safety Commission (CPSC) and OSHA Electrical Safety Guidelines.

Frequently Asked Questions

Q: What voltage range does the 500W mini water heating boiler module support?

A: This heating module supports a wide DC voltage input range of 12V to 25V. At the rated 25V input, it delivers 500W of heating power. At 12V, output is approximately 105W — giving you flexibility to integrate it into different power supply setups.

Q: What is the 85K NTC probe used for in this heating module?

A: The 85K NTC (Negative Temperature Coefficient) thermistor probe continuously monitors the water temperature inside the heating cavity. It feeds real-time temperature data to your control system, enabling precise temperature regulation and helping prevent overheating during operation.

Q: Is this water heating boiler module compatible with a peristaltic pump?

A: Yes — this module is designed to work with a standard 12V peristaltic pump running at a flow rate of approximately 280 mL per minute, making it well-suited for floor scrubbers and similar liquid-dispensing or heating equipment builds.

Q: What does the 185°C thermal protection switch do?

A: The built-in 185°C temperature control switch acts as a safety cutoff. If the module's internal temperature reaches 185°C — for example, during dry-run conditions — the switch interrupts power to prevent damage to the unit or surrounding components.