But only Lennox can provide comfort that lasts beyond the last drop of cocoa, the last log in the fire and that sweater you outgrew last winter. With many options to choose from, Lennox’ Conservator™ Series boilers offer exceptional comfort in a variety of configurations to accommodate nearly every home. For more than 100 years, people have trusted Lennox to make their lives more comfortable. Our boilers continue that tradition by offering reliable comfort, exceptional value and long-term saving