I an having problems with my TRV\\\'s, (Thermostatic Radiator Valves) so I was wondering if there is a special way for them to be fitted as they have an arrow on them which I prosume is a water flow direction indicator. and at the moment the hot water on most of my radiators flows through the radiator then through the TRV\\\'s the wrong
can anybody help
D
can anybody help
D