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MFH "The Bulldog" Portable Fan Heater

The MFH Portable Fan Heater is the world’s first truly portable hazardous area fan assisted heater.

The Bulldog® combines efficient design with simple functionality to provide a portable heating solution for use in hazardous environments where the atmosphere is classified as Zone 1/2 (IIB+H2) or Zone 21/22 (IIIC). Certified to the new EN 80079-36 and EN 80079-37 standards for constructional safety, The Bulldog comes ready to ‘plug and play’ with the option of fitting a plug, or hard wiring to an isolator unit.

The casing is moulded from a steel reinforced polymer which makes The Bulldog tough and durable. Using adjustable feet, the heater can be angled to allow for flexibility in its positioning and, with its compact design, can be easily stored or transported.

The Bulldog can be used with or without ducting to provide a warm stream of air that can be felt metres away, even in ambient temperatures as low as -40°C and up to +40°C. The heater can optionally be fitted with an additional safety device above and beyond the requirements of the certification.

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  • Compact and rigid housing suitable for onshore and offshore usage
  • Portable and lightweight, allowing for single user manipulation/operation. Can be supplied on a long flying lead to get heat where you need it
  • Up to 6kW. The heater can be directed at an engineer working in a larger space, or at the same time, warm a mid-sized room to a comfortable operating temperature for all within
  • The Bulldog’s design increases efficiency, providing a warmer flow of air for the operator at up to 5m
  • Suitable for ambient temperatures as low as -40°C and up to +40°C
  • Available in T3 and T4 temperature classes

  • Crane and hoist houses
  • Fabric Maintenance
  • Grain elevators
  • Hazardous Waste Storage Facilities
  • Localised Heating
  • Offshore Containers
  • Oil Drilling
  • Oil Refineries
  • Paint Curing
  • Paint Store
  • Production Platforms
  • Pulp and Paper Mills
  • Spray Booth


  • ATEX II 2 G D Ex h
    Ex db eb IIB+H2 T3…T4 Gb
    Ex tb IIIC T200°C…T135°C Db IP65
  • CU TR (EAC)
    1Ex db e IIB+H2 T3…T4 Gb X
    Ex tb IIIC T200°C…T135°C Db X
  • IECEx
    Ex db eb IIB+H2 T3…T4 Gb
    Ex tb IIIC T200°C…T135°C Db IP65
    Approval upcoming


  • L475 x W470 x H530mm. Base Weight 28kg

Main Materials

  • Casing: PA66 30% with EMI shielding
  • Impeller: PA66 30% with EMI shielding with epoxy coated aluminium hub
  • Elements: Finned stainless steel tubular elements
  • Ex d Enclosure: Anodised extruded aluminium
  • Ex e Enclosure: Stainless steel
  • Motor Housing: Epoxy coated aluminium


  • Adjustable feet at each corner allow for a stable standing on uneven surfaces. Wall mounting bracket option available (will require remote isolator for heater access/operation). Anti-static castors available.


  • Up to 6kW

Temp Class

  • Available in T3 and T4 temperature classes


  • Single-Phase: 110V to 277V
  • Three-Phase: 380V to 690V, 50/60Hz”
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