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Old 10-09-12, 02:51 PM   #3
Daox
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Welcome to the site mephistopheles!

Excellent point. The tees will definitely cause a restriction. I had not thought of that. I would imagine we'd still be well under the 6.62 inches of water of the initial setup. I'll try to find a crane catalog and see what all the tees would introduce. However, we could fairly easily fix this by enlarging the header pipes if it were an issue. You would just have to use reducing tees.

Flow obstruction IMO is a non issue. If you have something clogging your pipe in the standard version you simply have no heat/flow at all. At least with the parallel setup you would have some heat. But, in either case you would still want to flush the system and try to get it out.

Another alternative would be to reduce the number of parallel lines. Instead of 18 parallel lines perhaps you reduce that down to 9 or 6 and just make some small loops of those to make up for it.
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