Thorne & Derrick are the leading stockists and suppliers of Electric Heaters & Process Heaters for Hazardous Areas.

As master distributors for EXHEAT, we supply a range of space heating solutions for substations available from stock.

💡 We also provide Room Heat Loss Calculations to design the most cost effective and energy efficient heating solutions - compliant with hazardous area zone classifications including IECEx and ATEX.

➡ View our complete range of Electrical Heating Solutions

Electric heaters for the development and construction of Onshore and Offshore Wind Farms, are generally located within the battery room section of medium/high voltage substations and manufactured from corrosion resistant materials to resist battery acids.

Heaters must be suitable for hazardous area locations with potentially explosive atmospheres as defined by the ATEX Directive.

Don't be left in the dark.

Thorne & Derrick are the largest stockists of Raytec light fittings for the safe & reliable lighting of industrial and hazardous areas.

We are delighted to announce the NEW second generation of SPARTAN Linear luminaires, designed to lower investment, installation and operating costs.

💡 We also offer a technical lighting design service.

Using latest software our specialist Lighting Design Service supports the upgrade from fluorescent to LED lighting focussed on maximised light output and optimised energy consumption.

Lighting designs have reliable and safe certifications for explosion protection in Zone 1 and Zone 2 hazardous area zones and workplaces.

Why Specify & Install 3M Cable Joints?

3M LVI-3 type cable joints include specially formulated 3M Scotchcast 1402FR resin – this resin is hydro carbon resistant, flame retardant, halogen free and chemical resistant for use in hazardous area locations.

Excellence In Customer Care

We pride ourselves in the continued support and care that we deliver to our customers, and it is an honour to hold an award which represents this.

Terry McDonald, Sales & Business Development Manager, collected the award on behalf of Thorne & Derrick:

“Thank you for all of your support and for everyone who voted, and well done to all of the other nominees.

It was a pleasure to finally see you all face to face at the event, for the first time in a long time."