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Mono-flo or Parallel piping is small home?
I'm installing a radiant system in my 1,500 sq ft home in the SF Bay Area (moderate climate). The home is very well insulated. I've decided on Runtal radiators and in speaking with the Runtal rep he told me that a parallel piping system would be better than a monoflo system. His reasoning makes perfect sense: in a mono-flow system the water continues to lose heat as in passes through the radiators and that the last radiator will run less efficiently that the first. It also makes sense that in a parallel piping system the water temp is consistent through all radiators. Do you agree/disagree?
I'm attaching a zone diagram that I designed that has what I believe is a parallel piping system for one of the 2 zones planned for my home. Does it make any sense? Am I doing this correctly? I want to have flow control valves at each radiator to allow heat adjustment for the individual rooms. Comments appreciated. I'm a remodeling contractor but have limited knowledge of hydronics. Looking for help with the design and install, was told this was the right place for both. thcx