I am installing hot water fin tube baseboard in an addition. The design of the new zone will match that of existing zones: one-pipe with diverter tee on the return leg of the branch circuit. The diverter tee size is 3/4 x 1/2, meaning the branch circuit piping to the fintube will be 1/2". My local Big Box store only sells 3/4" fin tube baseboard. Is it o.k. to use 1/2" pipe from the supply tee, up to 3/4" fintube, then 1/2" back to the diverter tee? I know the diverter tee works by creating a pressure drop in the line thus allowing the flow through the branch circuit. Are there concerns with pressure changes in the branch circuit if piped the way I propose and its effect on the diverter tee?
Thank in advance
Thank in advance
