Customer stated the thermostat stays satisfied but does not think the blower is running when heat is turned on in the afternoon. Customer stated when they bump the heat up first thing, they can hear the blower run very loud and heats quickly, but in the afternoon, when it runs they don’t hear the blower run. Tech found system is operating properly and is a 3 stage system. Tech verified low stage runs when heat is bumped up one degree and high stage runs when heat is bumped up several degrees. Tech found a normal flame as well. Tech explained that when they bump the heat up from 68 to 73 first thing in the morning, they are hearing the system run in high stage. In the afternoon it is running low stage. Tech also explained it is using less gas and electricity when running low stage. Tech also verified temp split and verified thermostat satisfied from 73 to 75 while tech was there.