Like a traditional radiator system manual valves or thermostatic valves can be fitted to a trench heater system.
Thermostatic Radiator valves can be fitted to Trench Heaters, these are generally better with a fixed temperature or selectable dial remote head, this remote head is usually connected to the trench heater thermostatic valve by a thin bore fluid filled metal pipe. It is possible to fit the thermostatic head within the trench heater but potential localised heating from the heater itself could impact on the head sensing.
Manual valves are effectively 2 lockshields which are used for isolation and also for balancing of the radiator system, they have no impact on a day to day basis after set, in that they do not respond to temperature in any way - This method is ideal where an in room thermostat controls the cut in / cut out of the central heating system.
Trench Heating Grilles
Trench Heater Grilles are available in rigid or roll up grille on trench heater, Roll up are easier to lift and clean internally however rigid as the name suggests are more solid under foot.
Perimeter Grilles are available in wood, aluminium and steel, these can be further bespoke by Varnish, Laquer and Colour, providing for your exact requirements.