Well, my very rough heat-loss calc got around 56,000 design heat-loss; I don't say that is accurate due to the differential of inputs.
However, I believe their heat loss is too high... but I'm not there...
well w/ a few exceptions a chimney liner is national code
as for the a/c upsizing is not a good idea
what a standard calc. is ??? a guess !!! one should never guess
read through some posts on this site
Thank you for your feedback, udarrell and mechanical'al!
Is upsizing on the furnace equally as "bad" as the a/c? What are your thoughts on the humidifier and separate filter? I'm trying to keep costs down (aren't we all) but also want to make sure this is done correctly from the start.
depending or your pesonal prefrences , how tight of a structure , previous comfort levels?
how is the humidity level now in full winter if its really dry then youll need one if not save some$
as far as air cleaner thats also personal ? allergies? sinus issues ? I M O cheap . 50 cent filters a best buy by the case and change them monthly no worries