Radiant off of a Diverter Tee

Unknown

That's a floor-warming application, usually. If you're using it as primary heat, watch your load calcs and water temps!

closely spaced tees are normal tees, and are used to "decouple" flow in the radiant loop from the rest of the system. Basically it reduces the impact of add the loop on the rest of the system and lets it function more or less independantly, from a flow perspective at least.

Kyle_3

Radiant off of a Diverter Tee

I'd like to add a small underfloor radiant section off of an existing diverter tee system. I was inspired by this article:
http://www.pmmag.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2379,62497,00.html
Where a mixing valve and a circulator pump hang off of a tee loop, providing an area of radiant, instead of a fin-tube radiator.

In the article, Seigenthaler specifies "closely spaced tees", presumable to minimize pressure drop between the tees. So are these monoflo tees or standard tees? What is the benefit of them being closely spaced?