Core Value
In commercial water distillers, steam generators, and craft brewing kettles, the boiling chamber is typically a tall, narrow cylinder. Standard straight or U-shaped heating elements are entirely impractical for these vessels, as they cannot provide the necessary high wattage (e.g., 3kW to 6kW) without physically exceeding the dimensions of the tank.
The 220V Stainless Steel Spiral Coil Water Heater For Distiller elegantly resolves this geometric bottleneck. By cold-forming a long stainless steel tubular element into a stacked, helical coil (visible in 30f938fdc99b9f8d48492917c2bf3ab7.jpg), HT Heater engineers drastically multiply the active heating surface area while keeping the outer diameter strictly confined.
This expanded surface area is critical for two reasons:
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Rapid Boiling Dynamics: The stacked coils create strong convective currents, driving water rapidly upward through the center of the helix for aggressive, rolling boils.
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Scale Resistance: Distillers separate pure water by boiling it away, which leaves behind a high concentration of hard minerals (calcium and magnesium) in the boiling chamber. By expanding the surface area, the heater maintains a lower watt density (surface load). This prevents the rapid baking of scale onto the sheath, extending the maintenance intervals and lifespan of the heater.
To guarantee safe, watertight integration, the upward-facing vertical legs are equipped with heavy-duty threaded bulkhead fittings and thick red silicone gaskets. This allows the heater to be securely bolted through the bottom plate of the distiller, ensuring the electrical connections remain completely isolated from the boiling water.
- ✓ Maximized Power-to-Size Ratio: The multi-layer helical coil packs extreme commercial wattage into a narrow cylindrical footprint.
- ✓ Leak-Proof Bottom Mounting: Precision-machined threaded fittings paired with high-temperature red silicone washers provide a permanent, watertight seal.
- ✓ Food & Medical Grade Material: Constructed from SUS304 or SUS316L stainless steel, ensuring zero contamination for distilled drinking water or medical steam generation.
- ✓ Convective Boiling Action: The stacked coil design naturally promotes upward thermal currents, ensuring rapid temperature recovery.
- ✓ Direct OEM Manufacturing: Fully customizable coil diameters, stacked heights, wattages, and thread sizes supplied directly by HT HEATER.
Technical Specifications & Performance Data
| Parameter | Standard Specification | Customizable Options | Notes |
| Product Category |
Spiral Coil Water Heater for Distiller |
Flat Coil, Folded U-Shape | Engineered for cylindrical tanks and boilers |
| Operating Voltage | 220V / 230V / 240V AC Single Phase | 110V, 120V, 380V (for mega-distillers) | 220V is standard for global commercial appliances |
| Power Output | 2kW to 6kW Standard | Custom wattages based on boiler volume | Carefully calculated to balance boiling speed and scaling |
| Tube Diameter (Ø) | Φ8.0mm, Φ10.0mm Standard | Φ6.5mm, Φ12.0mm | Rotary-swaged for maximum internal dielectric compaction |
| Sheath Material |
SUS304 Stainless Steel |
SUS316L, Copper, Titanium | SUS316L is highly recommended for medical distillers |
| Coil Geometry |
Vertical Multi-Layer Helical Coil |
Custom coil spacing and stack heights | CNC cold-formed to prevent tube wall micro-fractures |
| Mounting Fittings |
Threaded Bulkhead (Upward Facing) |
1/2″ BSP, 3/8″ BSP, NPT equivalent | Silver-brazed or TIG-welded directly to the sheath |
| Sealing Hardware |
Red Silicone Washers + Locknuts |
PTFE (Teflon) washers, Copper gaskets |
Withstands continuous boiling and vessel pressure |
Industrial Applications & Solutions
This tightly wound helical immersion heater is the thermal engine for specialized fluid boiling equipment:
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Commercial Water Distillers: The primary heat source for boiling tap water into pure steam for laboratory, medical, and commercial drinking water purification.
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Compact Steam Generators: Powers the internal boilers of commercial steam cleaners, sauna units, and medical sterilization autoclaves.
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Brewery & Beverage Kettles: Provides concentrated, rolling boils for narrow Hot Liquor Tanks (HLTs) and wort boiling kettles in craft breweries.
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Restaurant Noodle Boilers: Fits perfectly into the deep, cylindrical basins used for rapid continuous pasta and noodle boiling.
HT HEATER Advantage: Why Choose Our Coiled Heater Elements?
| Feature | HT Heater Spiral Coil Element | Generic Replacement Heaters | Your Operational Advantage |
| Coil Forming | CNC automated bending (perfect radiuses) | Manual bending with flattened tubes | The tube wall maintains uniform thickness, preventing localized hot spots and maintaining maximum fluid flow between the layers. |
| Fitting Brazing | 360° High-Silver Brazing | Weak spot welds or cheap adhesives | The threaded fitting will never crack, leak, or snap off under the extreme thermal expansion of boiling dry (a common risk in distillers). |
| Terminal Safety |
Ceramic Insulators + Threaded Studs |
Exposed spade connectors |
Provides a rock-solid, vibration-proof connection for heavy-gauge wire ring terminals, eliminating melting risks. |
| Internal Compaction | High-tonnage rotary swaged MgO | Loose, hand-filled powder | Instantly transfers heat from the core wire to the stainless steel sheath, preventing the internal wire from melting under high wattage. |
Installation & Handling Guidelines
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Mandatory Complete Submergence: The entire helical coil section must be completely submerged in water before power is applied. Dry-firing will cause the element to glow red-hot and destroy itself within minutes. Distillers must be equipped with low-water cutoff switches.
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Proper Gasket Sealing: When mounting the heater through the bottom of the tank, position the red silicone sealing washers on the inside of the tank wall. Pass the threaded fittings through the holes, and firmly tighten the locknuts on the outside of the tank to compress the seal.
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Firm Electrical Connections: When attaching power wires to the threaded electrical studs, use two wrenches: one to hold the bottom nut stationary, and one to tighten the top nut. Twisting the terminal stud can sever the internal resistance wire.
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Aggressive Descaling Schedule: Because distillers evaporate pure water and leave minerals behind, scale buildup on the heater is rapid and inevitable. Scale acts as an insulator and will cause the heater to burn out if ignored. Establish a strict maintenance schedule to soak the coil in commercial descaling acid or citric acid.
Customer Success Stories
Case 1:
Laboratory Water Distiller OEM (USA)
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Application: 10-Gallon/day automatic water distillers for university chemistry labs.
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Challenge: The OEM needed to pack 4000W of power into a boiling chamber that was only 6 inches in diameter. The previous heaters they sourced had inconsistent coil spacing, leading to massive scale bridging between the coils that was impossible for the end-users to clean.
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Solution: Partnered with HT HEATER to integrate the 220V Stainless Steel Spiral Coil Water Heater. We utilized precision CNC forming to create a perfect helical stack with evenly spaced gaps between every layer.
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Results: SCALE BRIDGING ELIMINATED. The perfectly spaced coils allowed fluid to circulate freely and made routine acid-soak cleaning highly effective. The OEM reported a 40% increase in the average lifespan of the heating elements in the field.
Case 2:
Commercial Craft Brewery (UK)
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Application: 50-liter cylindrical brewing kettles for pilot test batches.
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Challenge: Brewers needed an aggressive, rolling boil for their sweet wort, but traditional straight elements scorched the sugars due to excessively high watt densities in the small tank.
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Solution: Transitioned to HT Heater’s vertical spiral coil elements. The stacked design allowed 5000W to be concentrated in the center of the kettle, creating a massive convective updraft, while the expanded surface area kept the watt density low enough to prevent scorching.
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Results: VIGOROUS BOILS WITH ZERO SCORCHING. The element delivered the rapid thermal ramp-up required for brewing while perfectly preserving the delicate flavor profile of the beer.
Pricing & Procurement Options
- OEM Customization: Tailored shapes, custom cutout holes for pipe nozzles, specialized voltage/wattage configurations, and custom strap lengths.
- Lead Times: Custom samples: 3–5 working days. Bulk production orders: 8–12 working days upon technical drawing sign-off.
- Packaging & Shipping: Individually bagged with protective foam padding and packed into heavy-duty 5-ply export cartons to prevent bending or lead wire stress during international transit.
- Minimum Order Quantity (MOQ): Low MOQ starting at 5–10 units for custom dimensions; competitive volume pricing tiers for equipment manufacturers.
Global Certifications & Compliance
- CE Marking
Fully compliant with European safety and environmental standards. - LVD Compliance
Low Voltage Directive tested for continuous thermal load safety. - RoHS Compliant
Constructed using environmentally safe, lead-controlled brass alloys. - ISO 9001
Certified quality control covering CNC machining, coil pressing, and electrical testing.
Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.
Comprehensive After-Sales Support
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- Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.
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Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.
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Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.
Ready to Optimize Your Injection Molding?
Next Steps:
- 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
- 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
- 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
- 📞 Contact Hot Runner Experts – Response within 2 hours
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