I concur with Wayne. These airplanes are not designed to fly in ice. With a heated pitot tube and an unheated canard you will accurately know the indicated airspeed at which your iced-up canard stops flying.
If your unheated pitot tube gets iced up, set the power and get out of the ice. It is no big deal to lose airspeed anyway. Also, if you build a light aircraft and you'll have a higher stall margin and a better ability to climb out of icing conditions if you do encounter them.