Can I use Cool Calc with radiant flooring?

Yes, Cool Calc can be used to perform a load calculation on a home that contains radiant flooring.

In the floor section the user must select floor type = "radiant" as shown in the screenshot below.

Cool Calc will automatically make the necessary adjustments to the heating temperature difference across the floor since the HTD values for a radiant floor are considerably higher than a standard HTD. 

Cool Calc will also omit the radiant floor load from the duct load calculations since duct load is calculated as a percentage of the load subtotal.