The salesman was very knowledgeable. My installation took place three days after the sale and everything went well. The installers were very respectful and cleaned up all cement used as well as other equipment. Before they were done they explained everything about the thermostat and how the furnace operated. I really like that Four Seasons had a 24 hour service in case of any emergency. I’m satisfied in my Lennox product. I will refer Four Seasons to family and friends. Everything that happened was great from the service to the installation.