Jeff Dieterle wrote:

Does anybody have a link to a manual heating & cooling load calculator. I
want to size a mini-split system for a 20x30 detached garage addition. All
I've found on the web are offers to purchase load calculation s/w.

There used to be a more complete free load calculator but I couldn't
find it. Here's what I found as far as free software goes:

http://www.mrhvac.com/loadcalcshortform.htm