MTH Flameproof Mini Tank Immersion Heaters

Product Applications
  • Boiler equipment
  • Cleaning and rinsing tanks
  • Crank casings
  • Frost protection
  • Hot water storage tanks
  • Motor enclosures
  • Sumps
  • Tank bases

The MTH range of heaters is a smaller range of immersion heaters that provide an ideal solution when space is at a premium. Each is designed with specific fittings for direct immersion, and is fully certified for use in hazardous areas where the atmosphere is classified as a Zone 1 or 2 (IIA, IIB, IIC) gas group, or a Zone 21 or 22 (IIIA, IIIB, IIIC) dust group.


  • 'Plug and play' style heater, screws directly to tank or boss as required
  • Fully integrated PCB to control the over temperature, thermometer chip as well as the thermocouple for process control
  • Suitable for ambient temperatures as low as ≤40°C to ≤60°C
  • Long term stability
  • Variable length elements and duties
  • 1/2" BSP or NPT fixing as standard - Suitable to work with most adaptors
  • Fully 321 stainless steel elements and fixing. Optional materials including NACE requirements available on request
  • Suitable for working pressures up to 18.3 bar g


Certifications ATEX/IECEx/UKEX
EX logo II 2 G D
Ex d IIC T6…T1 Gb
Ex tb IIIC T85°C….T450°C Db (IP66/68)

Hardware assessed for use in SIL applications
Cable 3m standard – longer available on request
Element Options 15mm elements 321 Stainless Steel as standard
Materials Body: Anodised aluminium 6082 T6
Boss: Stainless steel 316
Element: Stainless steel 316
Mounting Threaded 321 stainless steel boss suited to client requirements.
Available in a range of sizes in BSP, NPT and Metric fittings.