I spent sometime today trying to figure out this free trial. I want to see how over sized my furnace is and how undersized my dicts may be. Recent posts suggest to start with the Heat gain and lost calculation. I plugged in dimensions for the first and second floors. However, I'm not sure if I have the ceiling type correct for the first floor. I chose under a ventilated attic, but that is what I selected for the second floor. What should I use in that spot?
I also wasn't sure what "over a conditioned space" was for flooring. I selected that for both the 1st and 2nd floors. My 1st floor is over a basement that maintains around 54 degrees. Would a conditioned space apply?
The final results display total for heat gain and loss for ceilings, doors and windows. If I did everything correctly.
total CFM 1,200
heat loss heat gain
ceilings 14,371 36,199
windows 7,058 10,591
glass door 1,305 2,306