ATEX Fan Heaters – Offshore Portable Fan Heater – EXHEAT MFH “The Bulldog”
ofFshore portable fan Heaters
The Bulldog offshore portable fan heater is the world’s first truly portable hazardous area fan assisted heater. The ATEX heaters feature a patented design (GB1614657.3) which utilises salt-water resistant materials to provide a portable heating solution for use in offshore environments where the potentially explosive atmosphere is classified as hazardous area Zone 1 or Zone 2 (IIB+H2) or Zone 21 or Zone 22 (IIC).
Offshore “Bulldog” flameproof fan heaters are certified to meet ATEX equipment directive and are tough and durable with a casing made from steel reinforced polymer. The unit has adjustable feet allowing for the heater to be angled into position and the compact design means it can be easily stored or transported.
Typical heating applications include offshore containers, production platforms, paint curing and stores, spray booths, oil refineries and drilling and fabric maintenance.
The Offshore “Bulldog” can be used with or without ducting to provide a warm stream of air that can be felt up to five metres away, in ambient temperatures as low as -40°C or as high as +40°C.
The hazardous area portable fan heater comes ready to plug and play with the option of fitting a plug, or hard wiring to an isolator unit and can be optionally fitted with an additional safety device above and beyond the requirements of the certification.
The bulldog offshore portable fan heater
- Authorized and certified for offshore applications/installations
- Available in T3 and T4 temperature classes for hazardous area zones
- Suitable for ambient temperatures as low as 40ºC and up to +40°
- 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
- Offshore design includes a standard local isolator, anti-static castors and two side handles
- Portable and lightweight, allowing for single user manipulation / operation. Can be supplied on a long flying lead to get heat where you need it
- The Bulldog’s design increases efficiency, providing a warmer flow of air for the operator at up to 5 metres
offshore portable fan heater
|Hazardous Area Certifications||ATEX|
Ex II 2 G D Ex h
Ex db eb IIB+H2 T3…T4 Gb
Ex tb IIIC T200°C…T135°C Db IP65
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
|Measurements||Length – 475 x Width – 470 x Height – 530 mm|
|Base Weight||28 kg|
|Casing||PA66 30% with EMI shielding|
|Cabling||BS6883 certified, salt resistant and suitable for marine use|
|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|
|Mounting||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.|
|Rating||Up to 6kW|
|Temp Class||Available in T3 and T4 temperature classes|
|Voltage||Single-Phase: 110V to 277V|
Three-Phase: 380V to 690V, 50/60Hz
EXHEAT MFH offshore portable Fan Heater
Fan heater suitable for hazardous area Zone 1 & Zone 2 (IIB, IIC) gas groups.
|EXHEAT Model||Voltage (*)||Phase (**)||Nominal Output (kW)||Air flow (m³/hr)||Air Temp. Delta (°C/°F) (***)||Max Current (A) (****)|
|50 Hz||60 Hz||50 Hz||60 Hz|
|MFH – T3 Class|
|MFH-5.5-220||220||1||5.5||1050||1260||16.2 / 29.2||13.5 / 24.3||25.6|
|MFH-6-230||230||6||17.7 / 31.8||14.7 / 26.5||26.7|
|MFH-5.5-240||240||5.5||16.2 / 29.2||13.5 / 24.3||23.5|
|MFH-6-254||254||6||17.7 / 31.8||14.7 / 26.5||24.2|
|MFH-6-277||277||6||17.7 / 31.8||14.7 / 26.5||22.3|
|MFH-5.5-380||380||3||5.5||16.2 / 29.2||13.5 / 24.3||9.0|
|MFH-6-400||400||6||17.7 / 31.8||14.7 / 26.5||9.3|
|MFH-5.5-415||415||5.5||16.2 / 29.2||13.5 / 24.3||8.3|
|MFH-6-440||440||6||17.7 / 31.8||14.7 / 26.5||8.5|
|MFH-6-480||480||6||17.7 / 31.8||14.7 / 26.5||7.8|
|MFH-6-600||600||6||17.7 / 31.8||14.7 / 26.5||6.4|
|MFH-6-690||690||6||17.7 / 31.8||14.7 / 26.5||5.6|
|MF- T4 Class|
|MFH-2.5-110||110||1||2.5||1050||1260||7.4 / 13.3||23.3|
|MFH-3-120||120||3||8.8 / 15.9||25.6|
|MFH-2.75-220||220||2.75||8.1 / 14.6||13.1|
|MFH-3-230||230||3||8.8 / 15.9||13.6|
|MFH-2.75-240||240||2.75||8.1 / 14.6||12.1|
|MFH-3-254||254||3||8.8 / 15.9||12.4|
|MFH-3-277||277||3||8.8 / 15.9||11.4|
|MFH-2.75-380||380||3||2.75||8.1 / 14.6||4.8|
|MFH-3-400||400||3||8.8 / 15.9||4.9|
|MFH-2.75-415||415||2.75||8.1 / 14.6||4.4|
|MFH-3-440||440||3||8.8 / 15.9||4.6|
|MFH-3-480||480||3||8.8 / 15.9||4.3|
|MFH-3.7-600||600||3.7||10.9 / 19.6||4.2|
|MFH-3.7-690||690||3.7||10.9 / 19.6||3.7|
** Minimum SWA multicore cables required: 3Ph 380V–690V heaters require 4mm², 1Ph 220V-277V T4 heaters require 4mm², 110V-120V T4 & 220V-277V T3 heaters require 6mm², 110V-120V T3 heaters require 10mm².
*** ΔT (Delta T) refers to the air temperature difference at the inlet and outlet. For example, if the ambient is +6°C and the ΔT (temperature rise) is 15°C, then the outlet will be +21°C.
**** The maximum current includes the maximum motor inrush.
All values based on 25m cable lengths and an acceptable voltage drop of 4% at +40°C ambient.
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