For full disclosure - I used to work for a major utility in the US. We were heavily promoting the product to our customers. With hundreds of installations each year we had less than 0.5% customer complaints. I think that really speaks to the quality of the product. I have a 50 gallon (MR50245) installed in my own home. It's great.

Rheem Marathon water heaters are made by Water Heater Innovations in Eagan, Minnesota. The goal of Marathon water heater is to provide a water heater that...