One of the best ways to get a discounted 50-gallon water heater is to shop for a reconditioned or refurbished model at the Sears Outlet website or at a local Sears Outlet store. The stores have a wide variety of gas and electric water heaters to fit various applications.
Additional bargains for 50-gallon water heaters can be found at major home improvement retailers such as The Home Depot and Lowe's. They also offer money-saving tips on how to self-install the heater. Amazon also provides a good selection of water heaters at competitive prices. Although tankless varieties are generally more expensive up front, they can often replace traditional tank heaters and cost significantly less over the life of the unit.