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 20mm height adjustment if required.

The trench casing has joining straps and end straps which allow for 50mm and 75mm horizontal adjustment respectfully.

Heating Elements

The heating elements are 22mm diameter copper tube with aluminium fins locked for excellent heat transfer. These elements come in all sizes to produce different outputs.


The aluminium flexible grille will be durable natural satin anodised to AA15 finish with solid nylon rods to SAM 66 and T6 grille blades will be spaced for 60% free area as standard: 30%, 50% and 70% free area grille can be supplied if required.

The framework of the grilles ‘L’ section will also be durable in natural anodised AA15 finish and fixed to the trench casing.

Flexibility and reliability, quality, competitiveness and fast delivery make Gunning Trench Heating an unrivalled product.