The casing is manufactured from 1.2mm zintec steel sheet and will have a matt black powder paint finish to the inside face. Levelling bolts are fitted through the base of the casing to allow up to 35mm height adjustment if required. We manufacture six standard size trench casings (See Specification Page) although can make almost any size to suit your requirements.

Finned Heating Elements

Our Finned Heating Elements are 15mm/22mm copper tube with aluminium finns locked together for excellent heat transfer. They come in four different shapes and sizes and all giving different outputs.


At Gunning Heating we have invested considerable time and effort in designing a strong quality grille for our trench heating. Unlike other manufacturers our trench heaters are mostly positioned in front of doorways therefore will take a lot of foot traffic. We produce as standard two quality grilles. A flexible and a rigid silver/grey satin anodised aluminium cross blade type with a 60% free area. The rigid type can also be powder coated in almost any RAL colour. (Please call 01268 545154 for details)