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Q3: What is WRAS?
A3: WRAS is an acronym for Water Regulations Advisory Scheme. Many of Comaps’ products have been approved by WRAS.
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Q6: How do Thermostatic Radiator Valves operate?
A6: TRV’s have a wax or liquid sensor; that expands or contracts dependant on the temperature around the vents of the thermostatic head. TRV’s can be affected by direct sunlight, draughts or by being enclosed by household furnishings.
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