Had problems from day one with the operation of the boiler. It took over 6 months to get a an authorized repair company to correct the problem and only after I contracted the headquarters. The repair company in Idaho did not have the proper equipment to repair the unit and the installer who was trained was unable to fix the issue. It was fixed eventually. The factory said they would extend my warranty by a year but send a letter or only a month. The installing contractor had inputted our information into the the warranty system and if the information could not be found the service company could have given the factory the information. Nothing but headaches and service issues. Outside of these issues the boiler seems to work fine.