We are extremely pleased with the results, having put it to test for two winters especially since it was installed on top of bed rock and fully exposed to the elements.... W. W. .... I must say your product has performed sensationally well and to its full capability and delivers on all the features you have advertised. B. M. .... I cannot remember when my questions and needs were met with such efficiency and customer care…Heat-Line does make the best self-regulating heating cable and I now can say the best customer support!! N.S. I am writing to advise you of my total satisfaction with the performance of your heating cable designed for metal roof applications…The system exceeded our expectations…Thank you for a product that has performed well. J.G. .... I have now installed the unit and I was surprised at how easy and quickly the unit was installed (within less than ½ an hour). The system is working extremely well.... R.B. .... I would just like to take this opportunity in written form to thank you and your staff for the invaluable service that you have given me over the phone regarding my installation of Heat-Line.... G.V.K. .... I very much appreciated the ease of installation ....The best news however, is that we operated the water system all winter, and at no time were we left dry as in previous winters.... T.C. .... I must tell you that your product works terrific…I have nothing but praise for your product and staff. Keep up the marvelous work! B.F. .... It is a pleasure to encounter a company such as yours where the customer is treated so well.... C.W.M. .... Your products are the best on the market and I will not sell any freeze protection products other than Heat-Line systems. They are always easy to use and install and the reliability is unmatched in the industry.... C.H. I would just like to send you a little note to thank you for all the years we worked together and had a great business relationship. D.L. With respect to maintaining the privacy of Heat-Line customers we must withhold their names and personal information. All of these testimonials are copied exactly as received through various methods of correspondence.