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Multi-zone radiant and Delta T pumping
OK, I am thinking some of you can cite your experiences of applying Delta T pump control to this type system.
My application will be residential, 6 radiant zone manifolds w/zone valve (gyp-krete over framed floor, with tile or eng. hardwood) served from a buffer tank, using single system pump. I will use OAR to reset the buffer tank temp with manual mix valve to system pump; letting supply temp to system adjust as the buffer tank does.
My thinking is the best solution is to use a DT controlled variable speed system pump.
Another question - Is Taco the only option for DT ECM pumping in the small 6-9 GPM capacity?