"Joseph Meehan" wrote in message
...

I am sorry, but there are not easy fixes and without a proper total
evaluation and correction, you will only be adding to the Rube Goldberg
system.

To start with you need to do a Manual "D" to get all the data you need
to figure all this stuff out. It does the math to get it right.


To start with its likely the manual "D" was *already* done, and now with
this clusterfu*k glommed onto it's just costing him in money and lack of
overall comfort.

Probably would be best to just tear out that hacked in ducting, and go back
to using *that* system as it was designed.....

Set up a complete separate system to heat / cool the garage and workshop on
an as-needed basis, this unless perhaps he spends more time in the garage
than he does in the house--and even in that case by having a separately
controlled system he would have the option of controlling / adjusting both
systems to heat / cool only the space he is currently using.

--

SVL