That wouldn't help at all. That system is a an unseparated hart system which has the disadvantage of mixing the two inputs in the res. You have cool water coming from the rad loop mixing with the hot water from the block loop. This mixture then goes into both loops so you still have warm water going to the block.
The best looking system is the Y to 2 rads, if you can get flows equal in each rad.
Edward
[ 11-18-2001: Message edited by: fut ]
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