A rapid increase in the number of raised floor installations and the desire to maximise lettable floor area, has caused a corresponding increase in the demand for perimeter ‘Warmline Trench Heating’. Sill Line recognises that trench heating is a product which, more than most, must be purpose designed to meet the parameters of the project. Sill Line manufactures trench heating systems in standard sizes which are detailed below. As well as our standard models we can manufacture to customers specifications or work with the customer to resolve problems caused by obstacles in the course of the trench heating. The customer also has the choice of Gold, Bronze or Black anodised grille and frame or grille in the wood finish of their choice.

The outputs shown are based on LPHW 82/71°C, EAT 18°C. Water Velocity 0.92m/s. For other operating conditions refer to page 4. The Trench Casing is manufactured from 1.2mm zintec sheet, as are all components, and painted black internally.

The heating elements are 22mm diameter copper tube with aluminium fins locked for excellent heat transfer. 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 grilles can also be supplied if required. The framework of the grille ‘L’ section will also be durable in natural anodised AA15 finish and fixed to the Trench Casing.The Trench Casing is fitted with levelling screws to adjust height as required. Joining Straps and End Stops allow for 50mm and 75mm horizontal adjustment respectively.

Curved grille and frame as well as casings can be supplied to site templates if required ask our technical department for details.

The load bearing capability of trench casing is largely dependent on the width of the grille span and the free area of the grille.  However tests carried out on Warmline Trench casings at the Cranfield Institute of Technology have demonstrated that a 250 kg load evenly distributed centrally on a 100mm square area of a 300mm wide 60% free area flexible grille would give a safety factor of 2.
 
This example is meant as a general guide and as a rule the load bearing capability would rise as the span of the grille decreases, however should load factors be of significant concern this should be taken up with our technical department at time of ordering so that your particular needs may be addressed.  Casing and grilles to take vehicle access are available on request.

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