I've seen something similiar embeded in concrete in a walk-in freezer application. I remember hearing about how expensive that stuff was. Your application would have to hold up to UV rays so I'd imagine it wouldn't be cheap either. The electric bill will probably be high too.In a new project we are undertaking the customer has asked a heating system be placed in the trough to keep it from icing up. The job location is in Canada where during the winter the temperature routinely drops below -40 F. The trough being put up will be 6" seamless painted steel. Basically i am looking for some advice on a good durable product. There is about a mile worth of trough on several buildings so i assume a heat cable would be the way to go but i am open to options. thanx
