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Hello, I have a question about the best radiant design. I have an addition that I am installing above sub floor radiant heat. I am also going to run the radiant into the existing house. I have two options:
1. All loops on the same circuit would be kept inside each room. The install would be easier, but the loops would vary more than option two. Each loop for the circuit would be 234',228,'232',284',259' and 201'. All loops include head length and are spaced at 8". I know I am suppose to be under 300' for 1/2. Also I would be installing the adjustable flow manifold.
2. All loops on the same circuit with loops continuing into other connecting rooms, harder to install with more turns and such. Loop lengths would be closer length. 233',233',231',256',250',256'.
Basically, will the adjusting manifold take out flow issues with option 1 having the largest loop length difference at 83' or is it best to keep all of the loops within 25' and deal with more turns.
I have done heat calcs, and it does not seem to be enough change in loop to matter. All the rooms involved are open air to each other. It will cover 4 rooms.
I need to keep this on one circuit.