EXHEAT MTH Mini Tank Immersion Heaters – ATEX Certified Zone 1 & Zone 2, Zone 21 & Zone 22
mth heater Series | mini tank immersion heater
Product Code: MTH
The EXHEAT MTH Mini Tank Immersion Heater range is a compact and robust solution for providing certified heating in hazardous areas. Specifically designed for Zone 1 & Zone 2 flammable gas and Zone 21 & Zone 22 dust environments, these heaters meet the ATEX Directive requirements and deliver reliable, safe heating for small tanks and vessels where space is limited.
Product Overview
Part of EXHEAT’s smaller immersion heater range, the MTH series is ideal for applications where minimal installation space is available. Despite its compact design, the heater provides efficient and controlled heating for liquids such as water, oil and other process fluids, ensuring operational safety and performance in demanding industrial environments.
The MTH immersion heaters are engineered to operate in ambient temperatures as low as –60°C. They feature a range of withdrawable cartridge elements in different sizes, allowing for flexible installation and easy maintenance. Optional built-in thermocouples provide over-temperature protection, enhancing operational reliability and safeguarding equipment.
mth Technical Specifications
| Parameter | Specification |
|---|---|
| Nominal Voltage | 230 VAC* |
| Nominal Power | 100 – 610 W (depending on model) |
| Immersed Length | 160 – 620 mm |
| Inactive Length | 30 mm |
| Surface Load | 1.61 – 2.28 W/cm² |
| Fixing | 1/2″ NPT / BSP |
| Element Diameter | 15 mm |
| Max. Operating Temperature | -60 °C to +250 °C (model dependent) |
| Hazardous Area Zones | Zone 1 / 2 (gas), Zone 21 / 22 (dust) |
| Certification | ATEX / IECEx |
* Other voltages, power ratings, and configurations available on request.
Key Benefits
✔ ATEX-certified for safe operation in Zone 1, 2, 21 & 22 hazardous areas
✔ Compact design ideal for limited space installations
✔ Reliable tank heating for oil, water and boiler applications
✔ Maintains temperature and prevents freezing in cold environments
✔ Optional built-in thermocouple for over-temperature protection
✔ Withdrawable cartridge elements for easy maintenance and flexibility
mth Series – immersion heater- dimensions
| EXHEAT MTH Mini Tank Immersion Heater Technical Specification | ||||||||||||
| Model | Rating (W) | Immersed Length (mm) | Inactive Length (mm) | Surface Load (W/cm²) | Fixing | Element | ||||||
| 220V | 230V | 240V | 254V | 220V | 230V | 240V | 254V | |||||
| MTH-0.1-6-RNS | 91 | 100 | 109 | 122 | 160 | 30 | 1.61 | 1.77 | 1.93 | 2.16 | 1/2″ NPT/BSP | 15mm |
| MTH-0.2-11-RNS | 183 | 200 | 218 | 244 | 270 | 30 | 1.69 | 1.85 | 2.01 | 2.25 | 1/2″ NPT/BSP | 15mm |
| MTH-0.3-15-RNS | 274 | 300 | 326 | 366 | 380 | 30 | 1.71 | 1.87 | 2.03 | 2.28 | 1/2″ NPT/BSP | 15mm |
| MTH-0.4-20-RNS | 366 | 400 | 435 | 489 | 500 | 30 | 1.69 | 1.85 | 2.01 | 2.26 | 1/2″ NPT/BSP | 15mm |
| MTH-0.5-24-RNS | 457 | 500 | 544 | 610 | 620 | 30 | 1.67 | 1.83 | 1.99 | 2.23 | 1/2″ NPT/BSP | 15mm |
*Other voltages and configurations available on request.
Dimensions shown are typical values. Bespoke sizes available on request.
Applications
✔ Tank heating for water, oil, and boiler equipment
✔ Frost protection and temperature maintenance in cold conditions
✔ Chemical and petrochemical processing environments
✔ Oil, gas, and energy facilities in hazardous areas
✔ Safe operation in ATEX-certified Zones 1, 2, 21, and 22
Certifications
The MTH ATEX immersion heater and mats are certified for use in potentially explosive atmospheres with full ATEX and IECEx system approvals.
ATEX Certified
Winkler GmbH is a globally recognised manufacturer of industrial heating solutions with decades of expertise in hazardous area applications. Their innovative designs and high-quality manufacturing ensure reliable, efficient, and safe heating for liquids in ATEX and IECEx certified environments. Winkler’s MTH heaters jackets and mats are engineered for long-term industrial performance, precise temperature control, and compliance with the strictest international safety standards.
EXHEAT MTH Mini Tank Immersion Heaters – Data Sheet
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