"HeatMan" wrote in message
. ..
I'm not CBHVAC.

Aint ya glad? LOL


wrote in message
oups.com...
Hi, CBHVAC,
You said, "...if you DO go with a 13+ unit, INSIST that the installing
contractor do a manual D and PROVE to you that the existing duct will
work
100% with it...Sometimes it will, more often it wont"
I don't know what you mean when you say manual D. Could you elaborate,
please?

Manual D is the duct design guidelines put out by ACCA, Air Conditioning
Contractors of America.



Yup..didnt see this one...musta cleared the server and missed it.