The Next Generation Electrical Fan Heaters For Hazardous Areas

Published 24 Sep 2021

EXHEAT Fan Heaters | Distributed from Stock | International Delivery | Competitive Prices | Contact Us Today

by Terry McDonald | Product Specialist | Electrical Heating & Explosive Atmospheres

The EXHEAT LFH Heater, Distributed Exclusively by Thorne & Derrick, combines superior heating efficiency with simple user functionality to provide the next-generation solution for heating hazardous areas where the atmosphere is classified as Zone 1/2 (IIB Flammable Gas) or Zone 21/22 (IIIC Combustible Dust).

Dual certified according to ATEX & IECEX, the LFH withstands extreme onshore and offshore conditions (-40°C… +40°C) offering robust, reliable and powerful fixed or temporary heating (up to 40kW output – 3600m³/hour air flow) with T3 and T4 temperature classes.

The corrosion and chemical resistant marine grade stainless steel casing provides durability and ductability of the heater permits localised and directed heat flow – LFH electrical fan heaters provide comfort, space and accelerated process heating in the explosive atmosphere industries.

With multiple mounting options for floors, walls and ceilings the versatile heater is supplied ready to ‘plug and play’, with the option of fitting a plug, or hard wiring to an isolator unit.

➡ Should you require a product demonstration (in-person or virtual) or further information please contact us – for further details refer to the IOM Manual or Brochure.

Ex Stock Availability, Contact us for Quotation

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.

lfh Fan Heaters

Applications

LFH Heater 40ft Container Heating

High Performance Space Heaters | the patented heating element provides market-leading energy efficiency compared to conventional competitor fan heaters that utilise heat exchangers. Ask about Air ΔT (°C/°F) for the fixed and temporary version of the fan heaters.

LFH Battery Switchgear Room Heating

Heating High Voltage Substations & Hard-to-reach Locations | with optional long flying lead to direct heat to the target spot, the heaters provide reliable air warming for battery room sections of MV HV substations. Safe to use in locations where lead-acid type batteries release potentially explosive hydrogen gas when charging.

LFH Temporary Enclosure Habitat Heating

Supreme Air Flow | market-leading air flow capability ensures safe pressurising and heating of habitats for onsite onshore or offshore repair works.

Aircraft Servicing Hangars	Frost Protection & Winterisation	Oil & Petroleum Refineries	Marine & Shipping
Comfort & Space Heating	Skids & Offshore Containers	Paint Rooms	Spray Booths
Curing \| Drying Paints & Resins	Oil & Gas Drilling Platforms	Pipe Wrapping & Composite Repairs	Utilities, Substations & Battery Rooms

Certified

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

➡ Certificates | ATEX | CU TR | IECEx

Approved

In 2016, 2 new standards were issued to replace the now withdrawn BS EN 13463 range of standards that are to protect non-electrical equipment for use in potentially explosive atmospheres. Adding to the EN IEC 80079 range of standards, BS EN ISO 80079-36:2016 and BS EN ISO 80079-37:2016 were published.

Products protected by constructional safety, control of an ignition source and liquid immersion have their ATEX markings suffixed by the letters ‘c’, ‘b’ and ‘k’ respectively.

The new standards have compressed these three concepts into a single explosion protection concept and allow the new Ex h marking to be used. By including a fan in the design, the ATEX requirements in BS EN 14986:2017 were triggered, which calls on the requirement for constructional safety markings.

The LFH fan heater ranges are marked with the Ex h markings, and have undergone additional testing over and above the standard electrical and mechanical requirements of the BS EN IEC 60079 range of standards in order to confirm compliance.

Hazardous Area Heaters

Specification

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
Voltage	Three Phase, 380V to 690V, 50 / 60Hz