Though enough time hasn't elapsed to comment on the product, I am more than happy with the installation of the new water heater by Rich and Jake from DRF Water Heating Solutions. From the explanation of the paperwork, warranty, installation, and upkeep, Rich made sure I understood every step of the process. They were quick, efficient, and courteous throughout the time they were in my home. From beginning (calling to have a water heater installed) to end when they left the box from the new water heater intact for my grandchildren, I would recommend their services to anyone in need of a water heater. The only glitch was the check I wrote for payment, for some reason or other, couldn't be processed so DRF called within an hour of the installation to get a credit card number along with a promise to returned the check - which was promptly received