What size (1/2″ or 3/4″ or 1″) and type (PEXa PEXb PEXc) would you use if you had a 3 Family in Brooklyn and you wanted to redo the heating hot water pipe runs to pex?

Do you like the idea of baseboard heaters, but prefer something more energy efficient? Hydronic baseboard heaters might be for you.

Have a look at the rating tables for most finned-tube baseboards sold in North America, and chances are, you’ll see a footnote under the table that reads something like this: “Ratings are based on ...