Hello All,

I'm using the wirsbo design assistance manual to help design the control of my radiant system. The manual doesn't provide a formula to determine supply water temp. just a bunch of charts of which none are warmboard and none are based at 12" o.c.

What is the formula for determining supply water temp.?  and what is the output for warmboard?



Joey

warmboard has their own output charts.

You can find our design temperature chart at http://www.warmboard.com/wp-content/uploads/2008/10/0908-warmboard-brochure.pdf.  Or, if you are using the Wirsbo/Uponor manual, Warmboard performs nearly identically to the chart for a 4" slab with 1/2" tubing at 6" on center found on page 232 of the 5th edition.

Terry Alsberg
CEO Warmboard Inc.