Gunning Trench Heating has been designed to be installed within a floor void to enable the maximum available floor space to be utilised. The trench units are supplied in various sizes to suit output, pipe-work configurations and floor depths, normally to customer specifications.

Flexible aluminium cross blade grille is available as standard, in a silver anodised finish. Other colours are available on request.

Before attempting to install firstly check that all components are available. It is important that the trench is prepared prior to installation of casing, and that the correct depth is available and has been adequately levelled (Dependant on method)

Please note that carpet thickness etc should be taken into account.

Trench units are supplied to suit the overall run dimensions. Each intermediate joint allows a tolerance of +/- 25mm to take up building variations.

We suggest all sections are laid out along the heater run, equally spaced so that all gaps are of a similar size.

Note: the air inlet should be positioned adjacent to the external wall/window.

At the end of each run the last section is fitted with an end stop.

At corners, fix the corner to the adjacent trench section direct, using pop rivets.

An intermediate joint between 2 sections of trench is fitted with a joining strap, which, has a slide fitting and offers 25mm of adjustment.

When fixing joining straps to sections, ensure overall width of trench is maintained.

Stage 1

Lay assembled casing into Trench and make connections. using suitable fixing screws to suit its location.

Stage 2

Arrange heating elements on floor adjacent to casings. Space elements to give equal distribution along length of trench. Lay element assembly into casing and make final connections.

Stage 3

Fit splitter plates (Baffles) into corresponding case sections. These items are simply hooked over hanger brackets pre-fitted into case sections.

Cross braces should now be fitted to maintain case width.

Stage 4

Grills can now be cut to size and fitted with pop rivets at 1 metre intervals (If not already done so by us). Grills can then be fitted and ends trimmed if needed (Not always necessary).

Important: If site is not ready for handover, to prevent damage occurring to finished grills, we would suggest that this stage is delayed as long as possible and that a suitable board is laid into the casing to protect the heating elements.