<a href=showthread.php?s=&postid=10526054#post10526054 target=_blank>Originally posted</a> by Justin74
Is the cost the inhibtor?
The cost of laying extra pipes may be cost effective in the not so long run. With all the equipment, and pipework running in the attic not only the loss of head pressure(making bigger more energy consuming pumps necessary) but the direct access to extreme radiant heat(100-120+) on a consistant basis, the chillers will need to combat the heat from the pumps, lights as well as the buildings ambient temperatures concentrated in the attic crawl space.