ATEX Fan Heaters | Hazardous Area Zone 1 & Zone 2 | EXHEAT LFH
Hazardous Area Fan HEATERS
ATEX Certified | Up to 40kW
Zone 1 & Zone 2 (IIB) | T2 T3 & T4 Temperature Classes
EXHEAT LFH Fan Heater combines superior electrical heating efficiency with simple functionality to provide a next-generation heating solution for use in hazardous area environments where the explosive atmosphere is classified as Zone 1/2 (IIB) according to the ATEX Directive.
Certified to the new EN 80079-36 and EN 80079-37 standards for constructional safety, the EXHEAT LFH is supplied ready to ‘plug and play’, with the option of fitting a plug, or hard wiring to an isolator unit.
Incorporating a stainless steel casing for added toughness and durability, the LFH electric fan heater manufactured by EXHEAT is designed to operate in ambient temperatures of -40°C to +40°C, and uses a framework allowing for multiple mounting options on floors, walls and even ceilings in explosive atmospheres.
Depending on the heater model selected, inlet air temperatures can be increased by up to 46°C. Heaters are available up to 40kW output and provide class leading, energy efficient heating solutions for both onshore and offshore applications.
Fixed Heater Version. Shown with wall mounting brackets – other mounting options available on request.
Temporary Heating Solution for Explosive Atmospheres
The EXHEAT LFH can also be manufactured and supplied as a temporary heating solution with options for anti-static castors, lifting handles, built in isolator and controls if required. This version can also be ducted front and rear to provide a versatile heating option for hazardous area locations.
Electrical heaters can be ducted in hazardous areas
Electrical Heating
Manufactured with robust stainless steel housing the fan heater is suitable for onshore and offshore heating in the following applications:
- Fabric Maintenance
- Battery Stores
- Localised Heating
- Offshore Containers
- Oil Drilling
- Oil Refineries
- Paint Curing
- Paint Store
- Production Platforms
- Spray Booth
- Crane and Hoist Houses
- Pulp & Paper Mills
- Grain Elevators
- Hazardous Waste Storage Facilities
EXHEAT LFH Fan Heater
Features
Main Materials
- Casing: Stainless steel
- Impeller: PA66
- Element: Finned stainless steel tubular elements
- Ex e Enclosure: Stainless steel
- Ex d Enclosure: Anodised extruded aluminium
Dimensions
- LFH: Length 540mm, Width 600mm, Height 600mm – 50kgs
- XLFH: Length 690mm, Width 720mm, Height 680mm – 60kgs
The EXHEAT LFH electric heater is stackable for increased heat output
Hazardous Area Certification
ATEX
II 2 G D Ex h
Ex db eb IIB T3…T4 Gb
Ex tb IIIC T200°C…T135°C Db
IECEx
Ex db eb h IIB T3…T4 Gb
Ex tb IIIC T200°C…T135°C Db
CU TR (EAC)
1Ex db e IIB T4…T3 Gb X
Ex tb IIIC T135°C…T200°C Db X
EXHEAT LFH
Performance Data
Should you require any technical advise our support to enable the selection of the correct heater please contact our Sales Team to discuss your application.
| At 50Hz | At 60Hz | |||
| Performance Data | LFH | XLFH | LFH | XLFH |
| Air Velocity m/s (average) | 5.5 | 6 | 6.6 | 7.2 |
| Volumetric Flow Rate (m3/hr) | 1950 | 3050 | 2340 | 3660 |
| Fan Speed (min-1) | 1380 | 1380 | 1460 | 1460 |
| Motor Rating (kW) | 0.55 | 1.1 | 0.55 | 1.1 |
| Sound Pressure (dBA) | 78 | 83 | 80 | 85 |
Product Range
The EXHEAT LFH fan heater is available in a range of models and specifications – contact us to discuss your explosive atmosphere heating application.
| Fan Model | Voltage (V) | Duty (kW) | Maximum Current (A) 2 | Air Delta T (°C/°F) 3 |
| LFH – T4 LFH-9-440-T4 LFH-9-440-T4-I (Temporary) |
440 | 9 | 13 | 26 / 47 |
| 415 | 8 | 12 | 23 / 41 | |
| 400 | 7.5 | 12 | 22 / 40 | |
| 380 | 6.5 | 10 | 19 / 34 | |
| 230 (3Ph) | 7.5 | 12 | 22 / 40 | |
| Up to 690 1 | Up to 9 | Based on Voltage | Up to 26 / 47 | |
| LFH – T3 LFH-15-440-T3 LFH-15-440-T3-I (Temporary) |
440 | 15 | 21 | 38 / 68 |
| 415 | 13.5 | 20 | 34 / 61 | |
| 400 | 12.5 | 19 | 32 / 58 | |
| 380 | 11 | 18 | 28 / 50 | |
| 230 (3Ph) | 12.5 | 33 | 32 / 58 | |
| Up to 690 1 | Up to 15 | Based on Voltage | Up to 38 / 68 | |
| LFH – T2 | Up to 690 | 24 | Up to 38 | TBC |
| LFH-C with Advanced Controls | Up to 690 | 24 | 38 | TBC |
| Fan Model | Voltage (V) | Duty (kW) | Maximum Current (A) 2 | Air Delta T (°C/°F) 3 |
| XLFH-T4 XLFH-14.5-440-T4 XLFH-14.5-440-T4-I (Temporary) |
440 | 14.5 | 20 | 32 / 58 |
| 415 | 13 | 19 | 29 / 52 | |
| 400 | 12 | 18 | 26 / 47 | |
| 380 | 11 | 17 | 24 / 43 | |
| 230 (3Ph) | 12 | 32 | 26 / 47 | |
| Up to 690 1 | Up to 14.5 | Based on Voltage | Up to 37 / 64 | |
| XLFH-T3 XLFH-24-440-T3 XLFH-24-440-T3-I (Temporary) |
440 | 24 | 32 | 46 / 82 |
| 415 | 21.5 | 31 | 41 / 74 | |
| 400 | 20 | 30 | 38 / 68 | |
| 380 | 18 | 28 | 34 / 61 | |
| 230 (3Ph) | 20 | 55 | 38 / 68 | |
| Up to 690 1 | Up to 24 | Based on Voltage | Up to 46 / 82 | |
| XLFH-T2 XLFH-36-440-T2 XLFH-36-440-T2-I (Temporary) |
Up to 690 | 40 | Up to 63 | TBC |
| XLFH-C with Advanced Controls | Up to 690 | 40 | 63 | TBC |
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- LFH and XLFH fan heaters are also available in 480V, 600V and 690V options.
- Maximum currents include motor inrush.
- Air Delta T values taken at outlet.
Portable Heater
EXHEAT MFH | Bulldog Heater
EXHEAT MFH Bulldog Heater
The MFH Portable Fan Heater manufactured by EXHEAT and Distributed Exclusively in the UK by Thorne & Derrick is the world’s first truly portable fan assisted heater with dual hazardous area ATEX & IECEX Certification – commonly referred to as the Bulldog heater.
The Bulldog heater is the safest and most efficient portable heating solution available and has been extensively adopted by the process and hazardous area industries
EXHEAT MFH electric heater safely provides temporary and portable air warming to workplaces in potentially explosive atmospheres.
Thorne & Derrick in consultation with several international oil and gas E&P companies have developed an offshore model which has received an Offshore Inspection Release Notice.
Contact us for UK & Export Sales.
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Thorne & Derrick are leaders in the development and distribution of Product Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
Your proactive problem solvers experienced in succession planning for the replacement of obsolete, non-conformant and legacy equipment in hazardous areas.
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ATEX Fan Heaters – Hazardous Area Zone 1 & Zone 2 – EXHEAT LFH- Data Sheet
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