I recently had a XV90 trane furnace installed with accessories (Media Filter, Humidifer, Evaporator Coil) & VisionPro IAQ thermostat. I decided to change the evaporator coil as well as the old coil was 20 years old. My old furnace was a single stage 80% furnace that was 20 years old. The furnace is in the basement. The installers spend 3 days installing the furnace, water heater, humidifier, media filter and furnace. I think they did a good job and were very detail oriented. One thing I noticed is that how much quieter this furnace really was in comparison to my old furnace. The old furnace came on with such a blast that we had to turn on the TV and it was really irritating. On the other hand, this furnace, I can not feel even if the furnace is ON. Additionally, I think the VisionPro IAQ t-stat is great as well. Very good looking and is able to maintain the temperature very accurately with the added bonus of being able to control the humidifer. Also, I noticed that when they turned the furnace on, it took about 2.5/3 hours for the furnace to reach the desired temperature. It was about 60 degrees in the house and the desired temperature was 75 degrees. My question is that amount of time to reach the desired temperature normal?? Seems quite long to me. Also, how do I ensure that the furnace is firing on Stage 2 as well because my understanding was that if the deltaT was high then Stage 2 should come on and should assist the furnace to reach the desired temperature sooner. Any advice and guidance will really be appreciated. Just wanted to make sure that the performance parameters of the new installation where within range and acceptable. Thanks much for your help.