We have always been consumers of Sears products, from our first washing machine back in 1968 to all our replacement appliances, lawn care equipment and all our power tools. We have been very happy with the products we purchased from Sears. So when it came time to replace our old furnace we went to Sears and purchased a Quantum 90 on April 28, 2008. For the first winter season we had the new system it worked fine, kept our house warm during the harsh Illinois winters. Unfortunately, it was not the same the second winter. In January the... read full review »