The Bryant manual only has the single topline numbers for "certified conditions" between .15 and .5 so no way for me to check that. I might try to borrow a manometer and see what my actuals are. That would be interesting.
Not much to seal here. House is pretty modern. I guess I could put a storm door on the windward exterior door. Almost impossible to do anything in the attic with cathedral ceilings. Only an 8x8 area is accessible. Not sure what R-value the flex ducts up there are but replacing them would cost way more than any savings.
Originally Posted by beenthere
Look at your old furnaces CFM rating at statics/ESPs above .5".
Again, improve the homes insulation and seal it better. this will save you money in both heating and cooling season every year, year after year. A larger furnace just uses more fuel, and cost you more money year after year.