Product Registration Have more questions? Submit a request 3 Comments Date Votes 0 Eddie Pan October 28, 2013 20:17 please let me know warranty coverage and duration. 0 Vee Sutherland November 10, 2013 01:26 They will need to know which product you are talking about, and if it's a product you now own, they will need the serial number and purchase date. 0 Tech Support January 12, 2016 15:48 Hello Eddie, Good Day! Thank you Vee, yes you are correct. We need the model of the unit, the serial number and the date of purchase. To give you an idea, please see link below. https://eccotemp.zendesk.com/hc/en-us/articles/208019947-Heater-Warranties Thank you! Technical Support Team Eccotemp Systems LLC 1.866.356.1992 www.eccotemp.com Please sign in to leave a comment.